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Regional Boards => Pacific Southwest => Topic started by: Kniwt on October 01, 2015, 11:56:40 PM

Title: I-15/Tropicana interchange rebuild
Post by: Kniwt on October 01, 2015, 11:56:40 PM
Mod Note: Original thread title was "$190 million plan to rebuild I-15/Tropicana interchange". Changed it on 7/28/2022 because (1) the plan has turned into reality, with construction underway in 2022, and (2) the project scope expanded and cost has ballooned north of $300M. –Roadfro



The Las Vegas Review-Journal reports:
http://www.reviewjournal.com/news/las-vegas/locals-get-first-look-plans-i-15-tropicana-avenue-intersection

QuoteThe public got its first look at the $190 million I-15-Tropicana Avenue Interchange proposal at a public open house meeting Tuesday at the Hampton Inn Event Center on Dean Martin Drive.

... The number of vehicles on I-15 near the Tropicana overpass is expected to increase from 245,000 vehicles a day in 2014 to 295,000 vehicles a day by 2035, thanks in part to the new traffic generator in the neighborhood, the arena being built by MGM Resorts International and AEG Live. Volume also is expected to climb on the narrow Tropicana bridge by 48 percent.

... – Onramps and offramps will be expanded.
– Triple-left-turn lanes will be built at signaled intersections.
– The northbound frontage collector-distributor road entrance to I-15 will be lengthened.
– A bridge will be added for Dean Martin Drive traffic to pass beneath Tropicana.
– The entire Tropicana bridge over I-15 will be lengthened to meet height and width clearances.
– The existing flyover ramp will be replaced to meet height and width clearances.
Title: Re: I-15/Tropicana interchange rebuild
Post by: roadfro on October 02, 2015, 02:06:08 AM
The Tropicana Avenue bridge is one of the last 60's era bridges crossing over I-15 left in the Las Vegas area. Nearly all others have been reconstructed through interchange or bigger projects in the last 20 years. It's the last bridge with 3 sets of support columns, which constrains widening of the freeway and frontage roads underneath.

Another aspect of this is the replacement of the southbound flyover ramp. This was the first of the flyover ramps on I-15, and one of the first two three-level ramps in the state.
Title: Re: I-15/Tropicana interchange rebuild
Post by: Sub-Urbanite on October 04, 2015, 07:53:41 PM
$190 million on one freeway interchange. Mildly shocking.
Title: Re: I-15/Tropicana interchange rebuild
Post by: roadfro on October 04, 2015, 08:57:02 PM
Quote from: NickCPDX on October 04, 2015, 07:53:41 PM
$190 million on one freeway interchange. Mildly shocking.
It's a complete rebuild of one bridge over 10+ lanes of interstate, extended C/D roads, a new bridge over a parallel arterial (replacing a signalized intersection), and replacing a p probably 1/4-mile 2-lane flyover which won't meet height clearances when the main bridge is replaced (since the current bridge doesn't meet height standards over the interstate). It's kinda involved...
Title: Re: I-15/Tropicana interchange rebuild
Post by: Rothman on October 04, 2015, 10:16:16 PM
Quote from: NickCPDX on October 04, 2015, 07:53:41 PM
$190 million on one freeway interchange. Mildly shocking.

Why?  Sounds cheap to me.
Title: Re: I-15/Tropicana interchange rebuild
Post by: andy3175 on October 05, 2015, 11:23:37 PM
Quote from: roadfro on October 02, 2015, 02:06:08 AM
The Tropicana Avenue bridge is one of the last 60's era bridges crossing over I-15 left in the Las Vegas area. Nearly all others have been reconstructed through interchange or bigger projects in the last 20 years. It's the last bridge with 3 sets of support columns, which constrains widening of the freeway and frontage roads underneath.

I had no idea that this bridge was that old. Is there a source that provides the year of installation for bridges along Interstate 15 (or any other grade separation on Nevada's state highway system), such as a bridge log?
Title: Re: I-15/Tropicana interchange rebuild
Post by: roadfro on October 06, 2015, 02:41:21 AM
Quote from: andy3175 on October 05, 2015, 11:23:37 PM
Quote from: roadfro on October 02, 2015, 02:06:08 AM
The Tropicana Avenue bridge is one of the last 60's era bridges crossing over I-15 left in the Las Vegas area. Nearly all others have been reconstructed through interchange or bigger projects in the last 20 years. It's the last bridge with 3 sets of support columns, which constrains widening of the freeway and frontage roads underneath.

I had no idea that this bridge was that old. Is there a source that provides the year of installation for bridges along Interstate 15 (or any other grade separation on Nevada's state highway system), such as a bridge log?

No, there's not a definitive, publicly-available NDOT reference to bridges in Nevada (at least nothing akin to the Caltrans Bridge Log). My comment just comes from observation of bridge construction technique and knowledge of past construction projects in the area. Without looking at other sources to confirm, I'm fairly sure the Tropicana bridge dates to original construction of I-15 through Las Vegas.

Note that I mentioned this is one of the last 60's bridges with the arterial crossing *over* I-15. There are similarly aged bridges where I-15 is on top going over the arterial road, which I think also believe are original to the freeway construction without major widening or modification: two are the Charleston Blvd/SR 159 and US 95 overcrossings.
Title: Re: I-15/Tropicana interchange rebuild
Post by: andy3175 on October 07, 2015, 12:11:45 AM
Quote from: roadfro on October 06, 2015, 02:41:21 AM
There are similarly aged bridges where I-15 is on top going over the arterial road, which I think also believe are original to the freeway construction without major widening or modification: two are the Charleston Blvd/SR 159 and US 95 overcrossings.

With all the work done on the I-15 and US 95 interchange, it is surprising to consider that the actual mainline I-15 bridge over US 95 is original.
Title: Re: I-15/Tropicana interchange rebuild
Post by: roadfro on February 05, 2019, 09:44:02 AM
BUMP

The Tropicana interchange rebuild is now closer to $200M, and won't be done until 2024...a couple years after the new Raiders stadium opens.

Road project near Las Vegas Raiders stadium won't be done until 2024 (https://www.reviewjournal.com/traffic/road-project-near-las-vegas-raiders-stadium-wont-be-done-until-2024-1588398/), Las Vegas Review-Journal, 2/2/19
Quote
The $200 million Interstate 15/Tropicana Avenue interchange project is slated to get underway sometime in 2021, with the 26-month construction timeline leading to the project's likely completion in 2024, according to the Nevada Department of Transportation. There is an outside chance the project could finish in sometime in late 2023, but for that to occur everything in the process must go right, NDOT spokesman Tony Illia said.

That timetable means the Tropicana Avenue interchange project won't get underway until at least a year after the $1.8 billion, 65,000-seat stadium project is complete, and the Raiders and UNLV begin playing their home football games there.
<...>
The interchange project calls for reconstruction, including a diamond on- and off-ramp configuration with a flyover at Tropicana Avenue.

The project was modified to include high occupancy vehicle lanes to ramps to and from the south of the I-15/Harmon Avenue overpass. The location of the HOV lane ramps was altered to remove one that had been planned at Hacienda Avenue, after MGM Resorts International and stadium developers expressed concerns about that location. The original HOV ramp plans were developed before the stadium project came to life.


NDOT originally had plans to make HOV only exits at both Harmon and Hacienda, but has eliminated the HOV exit at Hacienda as that street will be closed on game days to facilitate pedestrian access to the stadium from the Strip.
Title: Re: I-15/Tropicana interchange rebuild
Post by: roadfro on May 04, 2019, 02:58:07 PM
Another article with similar information. This project is projected to start in 2021 and complete in 2024.

Tropicana, I-15 interchange work to help flow near Las Vegas stadium (https://www.reviewjournal.com/traffic/tropicana-i-15-interchange-work-to-help-flow-near-las-vegas-stadium-1655884/), Las Vegas Review-Journal, 5/3/2019

New info to me in the article was the 10-foot sidewalks on Tropicana and a new pedestrian connection on the north side of Tropicana down to Frank Sinatra that will provide another walking path to T-Mobile Arena.


The article also mentioned an unrelated project: The Valley View Blvd/Harmon Ave connector project over the UPRR. These two major arterials have been discontinuous since their intersecting point is crossed by the UPRR. There has been a proposed project to bridge the railroad and connect the two streets for well over a decade. This article mentions that project has (finally) begun construction. The future Harmon/I-15 HOV exit will enhance that connection.
Title: Re: I-15/Tropicana interchange rebuild
Post by: Occidental Tourist on May 05, 2019, 11:30:37 AM
Quote from: roadfro on May 04, 2019, 02:58:07 PM
Another article with similar information. This project is projected to start in 2021 and complete in 2024.

Tropicana, I-15 interchange work to help flow near Las Vegas stadium (https://www.reviewjournal.com/traffic/tropicana-i-15-interchange-work-to-help-flow-near-las-vegas-stadium-1655884/), Las Vegas Review-Journal, 5/3/2019

New info to me in the article was the 10-foot sidewalks on Tropicana and a new pedestrian connection on the north side of Tropicana down to Frank Sinatra that will provide another walking path to T-Mobile Arena.


The article also mentioned an unrelated project: The Valley View Blvd/Harmon Ave connector project over the UPRR. These two major arterials have been discontinuous since their intersecting point is crossed by the UPRR. There has been a proposed project to bridge the railroad and connect the two streets for well over a decade. This article mentions that project has (finally) begun construction. The future Harmon/I-15 HOV exit will enhance that connection.
Is the linked article an example of the poor state of journalism, the result of some misinformation from NDOT, or both?  The article starts with the false claim that the Tropicana interchange hasn't had a major upgrade since it was built in the 60s.  Since it was originally built, it has undergone the following:
Two major widenings, which resulted in three additional bridge decks being built;
The addition of the flyover for the south to east movement;
Reconfigurations of the on and off ramps to accommodate Frank Sinatra Drive and what would become Arena Drive, and the creation of a bridge support wall to create a new northbound off ramp lane for Arena Drive;
The excavation and building of the overpass of Frank Sinatra Drive just east of the main interchange.
Title: Re: I-15/Tropicana interchange rebuild
Post by: sprjus4 on May 05, 2019, 01:02:30 PM
Quote from: andy3175 on October 05, 2015, 11:23:37 PM
Quote from: roadfro on October 02, 2015, 02:06:08 AM
The Tropicana Avenue bridge is one of the last 60's era bridges crossing over I-15 left in the Las Vegas area. Nearly all others have been reconstructed through interchange or bigger projects in the last 20 years. It's the last bridge with 3 sets of support columns, which constrains widening of the freeway and frontage roads underneath.

I had no idea that this bridge was that old. Is there a source that provides the year of installation for bridges along Interstate 15 (or any other grade separation on Nevada's state highway system), such as a bridge log?
Bumping this... but the Tropicana Ave bridge over I-15 was constructed in 1964 as per bridgereports.com

http://bridgereports.com/nv/clark/exhibit/
Title: Re: I-15/Tropicana interchange rebuild
Post by: roadfro on May 05, 2019, 02:10:46 PM
Quote from: Occidental Tourist on May 05, 2019, 11:30:37 AM
Quote from: roadfro on May 04, 2019, 02:58:07 PM
Another article with similar information. This project is projected to start in 2021 and complete in 2024.

Tropicana, I-15 interchange work to help flow near Las Vegas stadium (https://www.reviewjournal.com/traffic/tropicana-i-15-interchange-work-to-help-flow-near-las-vegas-stadium-1655884/), Las Vegas Review-Journal, 5/3/2019

New info to me in the article was the 10-foot sidewalks on Tropicana and a new pedestrian connection on the north side of Tropicana down to Frank Sinatra that will provide another walking path to T-Mobile Arena.

Is the linked article an example of the poor state of journalism, the result of some misinformation from NDOT, or both?  The article starts with the false claim that the Tropicana interchange hasn't had a major upgrade since it was built in the 60s.  Since it was originally built, it has undergone the following:
Two major widenings, which resulted in three additional bridge decks being built;
The addition of the flyover for the south to east movement;
Reconfigurations of the on and off ramps to accommodate Frank Sinatra Drive and what would become Arena Drive, and the creation of a bridge support wall to create a new northbound off ramp lane for Arena Drive;
The excavation and building of the overpass of Frank Sinatra Drive just east of the main interchange.

I'd lean more towards misinformation.

It appears the original bridge was widened on both outer edges, concurrent with the construction of the south-to-east flyover–Historic Aerials shows both under construction in 1991. That's the only Tropicana bridge widening I could find. And that project appears to be the only major modification to the interchange since original construction in the 1960s.

The construction of Frank Sinatra Drive (somewhere between 2000-2004) did result in minor modifications within the interchange area. Namely, overpasses being constructed under Tropicana (to accommodate the new roadway) and under the NB on-ramp (to accommodate the new NB slip ramp exit to Frank Sinatra). This didn't have any significant impact to operations of the I-15/Tropicana interchange itself, other than the WB right turn to NB I-15 changing from a one-lane sweeping turn to a two-lane tighter NRTOR (a capacity increase likely only implemented because of the new Frank Sinatra bridge necessitated reconfiguring the turn).
Title: Re: I-15/Tropicana interchange rebuild
Post by: Plutonic Panda on November 21, 2019, 12:52:17 PM
Update for this project:

QuoteThe Tropicana Avenue-Interstate 15 interchange inched closer this week to becoming a reality.

The final public meeting for the project was held Tuesday by the Nevada Department of Transportation at the Hampton Inn Events Center to address the draft environmental assessment of the project.

Slated to get underway in 2021, it will be the first major upgrade to the Tropicana-I-15 interchange since it was built in the 1960s. It is aimed at improving traffic flow and helping the valley's large event complexes.

The $200 million project's scope includes I-15 between Russell and Flamingo roads and Tropicana between Las Vegas Boulevard and Valley View Boulevard. The area serves as a gateway to the Strip, T-Mobile Arena and the $2 billion Allegiant Stadium under construction for the Raiders.

- https://www.reviewjournal.com/traffic/i-15-tropicana-interchange-at-stadium-moves-closer-to-reality-1897336/?fbclid=IwAR0acrlHxqvOlz7fMjrf1GyQtDhGc5sovg716UJYreGrWLV-OR0lxO5kht8

On a somewhat related note(detailed in the article), I was unaware of the Valley View Extension. It's bitter sweet to me. On one end this is needed as an alternative and I'll certainly use it. On the other id like to see passenger rail return to Vegas and this route is needed. As part of that I would like to see this stretch of rail trenched within the next decade to allow for a steady flow of freight and passenger trains yet traffic flow maintained. Doing this would also allow for dozens of local streets to be connected. I know it would be an expansive undertaking and one behind some other needed projects, none the less. I am happy with this development however.
Title: Re: I-15/Tropicana interchange rebuild
Post by: X99 on November 21, 2019, 10:45:53 PM
Were any other interchange alternatives ever considered, like an SPUI or a DDI with the southbound-to-eastbound flyover? I can't find an IMJR anywhere.
Title: Re: I-15/Tropicana interchange rebuild
Post by: roadfro on November 22, 2019, 10:09:49 AM
Quote from: Plutonic Panda on November 21, 2019, 12:52:17 PM
On a somewhat related note(detailed in the article), I was unaware of the Valley View Extension. It's bitter sweet to me. On one end this is needed as an alternative and I'll certainly use it. On the other id like to see passenger rail return to Vegas and this route is needed. As part of that I would like to see this stretch of rail trenched within the next decade to allow for a steady flow of freight and passenger trains yet traffic flow maintained. Doing this would also allow for dozens of local streets to be connected. I know it would be an expansive undertaking and one behind some other needed projects, none the less. I am happy with this development however.

The Valley View/Harmon connection at the tracks has been proposed for nearly 20 years. I think Clark County was closer to building it about a decade ago before the recession hit, and they prioritized construction needs elsewhere.

There is no need to trench the main railroad line. At this point, most major streets in the Las Vegas Valley that intersect the railroad tracks already feature grade separation. Most cases where a street is discontinuous at the railroad tracks are found in the southwest valley, where the railroad came first and nearby development hasn't caught up enough to have the road network built out for a crossing.
Title: Re: I-15/Tropicana interchange rebuild
Post by: roadfro on February 17, 2021, 12:38:19 PM
Intentional bump

The Tropicana interchange rebuild has grown in cost since this thread started several years ago, but it has recently grown in cost even more since two other neighboring projects are being rolled into it to reduce administrative overhead.

Big interchange project near Allegiant Stadium grows in cost (https://www.reviewjournal.com/news/news-columns/road-warrior/big-interchange-project-near-allegiant-stadium-grows-in-cost-2275528/), Las Vegas Review-Journal 2/7/2021
Quote
The planned overhaul of the Tropicana Avenue-Interstate 15 interchange near Allegiant Stadium has seen two new features added and its price increased.

Originally pegged at up to $230 million, the project's price tag has grown to $273 million, of which $243 million is tied to construction on the project, according to Tony Illia, Nevada Department of Transportation spokesman.

Part of the increase is tied to adding a $30 million project that was already in the works – repaving I-15 between Warm Springs Road and Hacienda Avenue – to the Tropicana overhaul. Illia said this will save the state money in the long run by not having to carry out the project separately at a later time.
<...>
The other addition is upgrading the sewer lines under Tropicana within the project's scope. The work is for the Clark County Water Reclamation District, which will pay for the project's costs.
<...>
As part of the project, 10 more active traffic management signs are planned to be installed on I-15 between Russell Road and the 215 Beltway, which will help with event traffic to Allegiant Stadium and T-Mobile Arena.
<...>
With the timeline calling for construction to take at least 26 months, the project's earliest anticipated completion would be mid-2024. If Las Vegas is awarded the Super Bowl that year, as it's rumored to be a possible site, construction would be occurring during the major event.
<...>


Also likely new since the project was originally envisioned is the deployment of additional ATM signs, adding more signs southward from where the first signs were installed along I-15 during Project Neon. Given this project and the recently-announced grant to install more on US 95, it seems like the first deployment of ATM signage has been met with success and NDOT/RTC want to see this system expanded.

It's too bad this project wasn't queued up a little bit earlier to take advantage of the reduced traffic flows during the pandemic, especially given that the Raiders (and excepting one or two games, UNLV) played their seasons at Allegiant Stadium without spectators. While the stadium itself is closer to Russell Road than Tropicana Ave, Tropicana will be a major access point and the project area will encompass the Russell interchange also. Access is going to be a bit problematic for a while on stadium event days as things open back up.
Title: Re: I-15/Tropicana interchange rebuild
Post by: roadfro on November 09, 2021, 11:23:08 AM
Intentional Bump

The project cost has now escalated to over $300M. The project had experienced delays because nearby landowner Station Casinos expressed concerns with the design hindering access to their property where they eventually plan to build a big casino, but that's been worked out now. A contractor has been selected, and construction should get underway next year.

Contractor, design OK'd for $305M I-15/Tropicana interchange project (https://www.reviewjournal.com/local/traffic/contractor-design-okd-for-305m-i-15-tropicana-interchange-project-2474547/), Las Vegas Review-Journal, 11/8/2021. (paywall, if free article limit reached)
Quote
After a month of meetings, Station Casinos representatives and transportation officials came to an agreement Monday on plans for a $305 million rebuild of the Interstate 15-Tropicana Avenue interchange.

As a result, the Nevada Board of Transportation unanimously approved the design and awarded the contract for the massive road improvement project to Kiewit Infrastructure West.
<...>
Station Casino executives initially expressed concern with the signalized intersection [Tropicana Ave & Dean Martin Dr] not being included in the project. However, after meeting with officials from NDOT and Kiewit, they agreed to keeping that aspect out of the project.

The two sides did agree on eight additions to the plan to suit Station's needs for the future use of approximately 100 acres it owns where the Wild Wild West property sits now, on the northwest corner of Tropicana and Dean Martin. Station tentatively plans to build a mega resort on the site.
<...>
None of the additions are expected to impact the project's timeline. It is expected to get underway sometime next year, with completion expected at the end of 2024. That also means $50 million in federal funding earmarked for the project will not be impacted; state officials had worried that a substantial change to the design could lead to a delay in the project.


Title: Re: I-15/Tropicana interchange rebuild
Post by: roadfro on November 09, 2021, 11:30:41 AM
Going back to address a post from a few years ago.

Quote from: andy3175 on October 07, 2015, 12:11:45 AM
Quote from: roadfro on October 06, 2015, 02:41:21 AM
There are similarly aged bridges where I-15 is on top going over the arterial road, which I think also believe are original to the freeway construction without major widening or modification: two are the Charleston Blvd/SR 159 and US 95 overcrossings.

With all the work done on the I-15 and US 95 interchange, it is surprising to consider that the actual mainline I-15 bridge over US 95 is original.

Those original construction bridges on I-15 over Charleston and US 95 (and also likely the Alta/Bonneville overcrossing in between) have all since been reconstructed, which took place during the massive rebuild that was Project Neon. The Tropicana bridge is likely the only I-15 original construction era bridge remaining within the urban limits of the Las Vegas Valley.
Title: Re: I-15/Tropicana interchange rebuild
Post by: Sub-Urbanite on November 09, 2021, 12:02:46 PM
Quote from: roadfro on November 09, 2021, 11:30:41 AM
Going back to address a post from a few years ago.

Quote from: andy3175 on October 07, 2015, 12:11:45 AM
Quote from: roadfro on October 06, 2015, 02:41:21 AM
There are similarly aged bridges where I-15 is on top going over the arterial road, which I think also believe are original to the freeway construction without major widening or modification: two are the Charleston Blvd/SR 159 and US 95 overcrossings.

With all the work done on the I-15 and US 95 interchange, it is surprising to consider that the actual mainline I-15 bridge over US 95 is original.

Those original construction bridges on I-15 over Charleston and US 95 (and also likely the Alta/Bonneville overcrossing in between) have all since been reconstructed, which took place during the massive rebuild that was Project Neon. The Tropicana bridge is likely the only I-15 original construction era bridge remaining within the urban limits of the Las Vegas Valley.

Oh, but no! Craig Road, Speedway Boulevard, Owens and Carey avenues are all OG, I think. Definitely Speedway Boulevard at a minimum.
Title: Re: I-15/Tropicana interchange rebuild
Post by: roadfro on November 09, 2021, 12:37:41 PM
Quote from: Sub-Urbanite on November 09, 2021, 12:02:46 PM
Quote from: roadfro on November 09, 2021, 11:30:41 AM
Going back to address a post from a few years ago.

Quote from: andy3175 on October 07, 2015, 12:11:45 AM
Quote from: roadfro on October 06, 2015, 02:41:21 AM
There are similarly aged bridges where I-15 is on top going over the arterial road, which I think also believe are original to the freeway construction without major widening or modification: two are the Charleston Blvd/SR 159 and US 95 overcrossings.

With all the work done on the I-15 and US 95 interchange, it is surprising to consider that the actual mainline I-15 bridge over US 95 is original.

Those original construction bridges on I-15 over Charleston and US 95 (and also likely the Alta/Bonneville overcrossing in between) have all since been reconstructed, which took place during the massive rebuild that was Project Neon. The Tropicana bridge is likely the only I-15 original construction era bridge remaining within the urban limits of the Las Vegas Valley.

Oh, but no! Craig Road, Speedway Boulevard, Owens and Carey avenues are all OG, I think. Definitely Speedway Boulevard at a minimum.

I'm going to stand mostly corrected. The Craig and Carey bridges do appear to be originals–I thought they had both been reconstructed with the I-15 north widening in the early 2000's, but perhaps not. Owens Ave is steel girder construction, which suggests a later vintage if not reconstructed during that same project (and entirely possible given the central sections of I-15 closer in to downtown core were constructed later). Didn't think about Speedway Blvd since that interchange has only existed since the mid 1990's, but a road and bridges at that location do appear to date back to I-15 construction according to what I could glean from Historic Aerials.
Title: Re: I-15/Tropicana interchange rebuild
Post by: Sub-Urbanite on November 09, 2021, 01:46:33 PM
Quote from: roadfro on November 09, 2021, 12:37:41 PM
Quote from: Sub-Urbanite on November 09, 2021, 12:02:46 PM
Quote from: roadfro on November 09, 2021, 11:30:41 AM
Going back to address a post from a few years ago.

Quote from: andy3175 on October 07, 2015, 12:11:45 AM
Quote from: roadfro on October 06, 2015, 02:41:21 AM
There are similarly aged bridges where I-15 is on top going over the arterial road, which I think also believe are original to the freeway construction without major widening or modification: two are the Charleston Blvd/SR 159 and US 95 overcrossings.

With all the work done on the I-15 and US 95 interchange, it is surprising to consider that the actual mainline I-15 bridge over US 95 is original.

Those original construction bridges on I-15 over Charleston and US 95 (and also likely the Alta/Bonneville overcrossing in between) have all since been reconstructed, which took place during the massive rebuild that was Project Neon. The Tropicana bridge is likely the only I-15 original construction era bridge remaining within the urban limits of the Las Vegas Valley.

Oh, but no! Craig Road, Speedway Boulevard, Owens and Carey avenues are all OG, I think. Definitely Speedway Boulevard at a minimum.

I'm going to stand mostly corrected. The Craig and Carey bridges do appear to be originals–I thought they had both been reconstructed with the I-15 north widening in the early 2000's, but perhaps not. Owens Ave is steel girder construction, which suggests a later vintage if not reconstructed during that same project (and entirely possible given the central sections of I-15 closer in to downtown core were constructed later). Didn't think about Speedway Blvd since that interchange has only existed since the mid 1990's, but a road and bridges at that location do appear to date back to I-15 construction according to what I could glean from Historic Aerials.

With Speedway, yeah, they actually just used an existing bridge there for that interchange when they opened LVMS. Not sure if it was a railroad spur, or an access road for Nellis, but someone needed a bridge there in the late 60s...

Two things led me to think Owens is original: The historic aerials match, and if you look at historic Street View, it looks like the bridge has been painted but not replaced.
Title: Re: I-15/Tropicana interchange rebuild
Post by: Plutonic Panda on December 31, 2021, 04:28:57 AM
Update:

https://www.equipmentworld.com/better-roads/article/15286418/las-vegas-prepares-for-tropicana-ave-i15-interchange-rebuild
Title: Re: I-15/Tropicana interchange rebuild
Post by: andy3175 on April 26, 2022, 11:15:32 PM
More on the 15/Tropicana interchange reconstruction... https://www.8newsnow.com/news/local-news/major-road-construction-project-to-begin-on-tropicana-i-15/amp/

(Article is not terribly new but adds a bit more information about the project.)

QuoteThe $305 million project will widen Tropicana between Polaris Avenue and Las Vegas Boulevard. Due to construction, at some point during the summer, there will be full closure of Tropicana and the I-15 which could last several days.

Nevada Department of Transportation is working to do that closure so it doesn't impact any major events at the T-Mobile or Allegiant stadiums. ...

One goal of the project is to solve the backups caused by a high density of stoplights on Tropicana leading to the I-15, specifically at Dean Martin Drive next to the In-N-Out restaurant. That stoplight will be removed.

The project is planned for completion in November 2024.

Official project page... https://www.dot.nv.gov/projects-programs/road-projects/i-15-tropicana-project

Title: Re: I-15/Tropicana interchange rebuild
Post by: Plutonic Panda on April 26, 2022, 11:34:36 PM
They really should initiate a planning study to determine the feasibility of turning Frank Sinatra Dr. And Dean Martin Dr. Texas style one way frontage roads with multiple turn arounds. Traffic can get horrendous on Frank Sinatra drive sometimes. Not sure how this would be done though but it would be a blessing.
Title: Re: I-15/Tropicana interchange rebuild
Post by: roadfro on April 27, 2022, 10:21:30 PM
Quote from: Plutonic Panda on April 26, 2022, 11:34:36 PM
They really should initiate a planning study to determine the feasibility of turning Frank Sinatra Dr. And Dean Martin Dr. Texas style one way frontage roads with multiple turn arounds. Traffic can get horrendous on Frank Sinatra drive sometimes. Not sure how this would be done though but it would be a blessing.
An interesting idea, but I don't foresee this happening ever.
Title: Re: I-15/Tropicana interchange rebuild
Post by: Plutonic Panda on April 27, 2022, 11:06:53 PM
Quote from: roadfro on April 27, 2022, 10:21:30 PM
Quote from: Plutonic Panda on April 26, 2022, 11:34:36 PM
They really should initiate a planning study to determine the feasibility of turning Frank Sinatra Dr. And Dean Martin Dr. Texas style one way frontage roads with multiple turn arounds. Traffic can get horrendous on Frank Sinatra drive sometimes. Not sure how this would be done though but it would be a blessing.
An interesting idea, but I don't foresee this happening ever.
Agreed. I don't know else can be done but anything would be an improvement. At this point I just wish we'd get a heavy rail train below Las Vegas boulevard from the airport to downtown. Man would that be amazing.
Title: Re: I-15/Tropicana interchange rebuild
Post by: Plutonic Panda on May 27, 2022, 01:35:57 PM
This project officially kicks off Tuesday.

QuoteGovernor Steve Sisolak will be joined by US Transportation Secretary Pete Buttigieg and the Nevada Department of Transportation (NDOT) at Allegiant Stadium on Tuesday morning for the launch of the I-15/Tropicana Interchange Construction Project.

New resorts, professional sports and sold-out concerts have drawn as many as 300,000 visitors on peak weekends. The I-15/Tropicana Interchange serves as a gateway to the Las Vegas Strip, which continues to grow as the Entertainment and Sports Capital of the World. This project will improve public safety by replacing the nearly 60-year-old Tropicana bridge, as well as accommodate capacity for future growth and access.

The I-15/Tropicana Interchange Project will be funded with help from the President's Infrastructure Law. Construction is set to begin this year and finish in 2024. It's estimated to support 4,664 jobs.

Governor Sisolak and Secretary Buttigieg will be joined by NDOT Director Kristina Swallow, as well as several members and representatives of Nevada's congressional delegation including Senator Catherine Cortez Masto, Senator Jacky Rosen, Congresswoman Dina Titus, Congressman Steven Horsford and Congresswoman Susie Lee.

Media planning to attend are asked to RSVP for further details, including exact timing and parking information.

- https://gov.nv.gov/News/Press/2022/2022-05-26_I-15TropicanaInterchangeProjectKickOff/
Title: Re: I-15/Tropicana interchange rebuild
Post by: Plutonic Panda on May 31, 2022, 09:15:27 PM
This project has officially broken ground. It will be nice once it's done!

https://www.8newsnow.com/news/local-news/ndot-unveils-massive-project-on-i-15-tropicana/
Title: Re: I-15/Tropicana interchange rebuild
Post by: Sub-Urbanite on June 01, 2022, 12:27:42 AM
Amazing how it went from $190 million to $305 million and did anyone bat an eye at that?
Title: Re: I-15/Tropicana interchange rebuild
Post by: Kniwt on June 01, 2022, 09:34:39 AM
Report on yesterday's project kickoff, with video and pics, including this rendering of the finished interchange:
https://www.reviewjournal.com/local/traffic/tropicana-i-15-interchange-upgrade-project-kicks-off-2585021/

(https://www.reviewjournal.com/wp-content/uploads/2022/05/16524618_web1_TROP-I15-Jun1-22-BT05.jpg)
Title: Re: I-15/Tropicana interchange rebuild
Post by: roadfro on July 28, 2022, 10:14:11 AM
The LVRJ reports that project work has started to impact traffic.

Work on I-15/Tropicana to begin impacting freeway traffic this week (https://www.reviewjournal.com/local/traffic/work-on-i-15-tropicana-to-begin-impacting-freeway-traffic-this-week-2612824/), Las Vegas Review-Journal, 7/25/2022
Quote
<...>
Motorists this week will begin to encounter the first major road impacts on I-15 tied to the $305 million reconstruction of the I-15/Tropicana Avenue interchange.

The carpool lanes on both the northbound and southbound sides of I-15 between Warm Springs Road and Tropicana will be closed 24/7 starting Thursday and continuing through Aug. 25, the Nevada Department of Transportation announced Monday.

Additionally, varying overnight lane reductions of I-15 will take place beginning Monday night. The lane closures are needed for crews to pour foundations for 10 new dynamic messaging signs on the freeway.
<...>
Sometime after the HOV lanes reopen to traffic on Aug. 25 they will be utilized as general purpose lanes for about 18 months while other I-15 lane closures are in place. NDOT will announce those specific dates at a later time and the ATM signs will note when the lanes are open to all motorists.

Aside from the I-15 work, an upcoming traffic shift on Dean Martin Drive is slated to occur tied to the project.
<...>
The sign installation work is part of phase 1 of the I-15/Tropicana project. The initial phase is planned to last until early 2023. The almost three-year project is planned to be substantially completed at the end of 2024, with full project close out eyed for mid-2025.
<...>


Also just found that there is a dedicated project website: www.i15trop.com
Title: Re: I-15/Tropicana interchange rebuild
Post by: roadfro on November 26, 2022, 01:23:12 PM
The article title speaks for itself.

I-15/Trop revamping is about to get serious (https://www.reviewjournal.com/news/news-columns/road-warrior/i-15-trop-revamping-is-about-to-get-serious-2680202/), Las Vegas Review-Journal, 11/21/2022
Quote
As the $305 million revamp of the Interstate 15-Tropicana Avenue interchange continues, motorists who routinely travel the area need to stay current on the latest progress.
<...>
The project will be carried out in four phases, with it currently in Phase 1.

In December, widening work will occur on Tropicana between Dean Martin Drive and Polaris Avenue. This work will be done in three sections.

The first section, set to begin in late December or early January, will shift all traffic on Tropicana to the outside lanes in both directions while crews demolish the median. That's needed to allow for traffic shifts as the widening occurs.
<...>
The biggest upcoming traffic impacts are tentatively expected to begin in mid-January when crews begin to partially reconstruct the I-15 southbound to Tropicana eastbound flyover ramp and start to demolish the Tropicana bridge over I-15.

Lane restrictions tied to the Tropicana-focused work include I-15 in both directions, Tropicana and the freeway ramps in the area and on Frank Sinatra Drive. This work will last through fall 2023.

Additionally, the Harmon half-interchange where high-occupancy vehicle drop lanes going from I-15 northbound to Harmon and from Harmon to I-15 southbound will be constructed and in use by fall 2023.
<...>
Title: Re: I-15/Tropicana interchange rebuild
Post by: roadfro on January 15, 2023, 01:53:42 PM
"Dropicana" is coming.

I was down in Vegas when I first heard about this, but neglected to post. User skluth posted this in another thread and I thought I'd cross-post:
Quote from: skluth on January 14, 2023, 01:38:53 PM
Saw this construction update (https://www.ktnv.com/traffic/major-closure-of-i-15-and-tropicana-for-will-shutdown-roads-for-several-days-for-dropicana) on my visit this week to LV. Glad I didn't postpone my trip.

Quote
Major Closure of I-15 and Tropicana will shutdown roads for several days for "Dropicana"
Dropicana is a part of Phase 2 of the I-15 Tropicana Project

By: Zora AsberryPosted at 12:06 PM, Jan 13, 2023 and last updated 6:58 AM, Jan 14, 2023
LAS VEGAS (KTNV) – Commuters who travel along the I-15 North and South, as well as east and westbound Tropicana, will see some major traffic changes in the coming days.​

It's all due to phase two of the I-15 Tropicana Project – which will replace a nearly 60-year-old bridge, overpass and ramps.

NDOT spokesperson Justin Hopkins spoke with KTNV to find out exactly how this next phase will impact commuters.

"We called it 'Dropicana,' because we're dropping and taking down several different structures," Hopkins said. "So, half of the Tropicana Avenue Bridge over I-15 is coming down."

​The removal of the Tropicana Avenue bridge will close down east and westbound lanes for eight days next week.

​"We're also taking down about half of the flyover that goes from southbound I-15 to eastbound Tropicana," Hopkins added. "That's the big flyover that you take when you're heading down to Las Vegas Boulevard, to the strip and all the resorts."

Here's a timeline of what drivers can expect:

On ​Tuesday, Jan. 17, the I-15 southbound ramps to Tropicana east and westbound will be closed.​

Hopkins says, "The westbound ramp will be closed for nine months, while the eastbound flyover is going to be closed for 18 months while we rebuild the flyovers"​

On Sunday, ​Jan. 22, crews will begin closing Tropicana Avenue in both directions from Dean Martin to New York, New York until Jan. 30th.

This closure will force drivers to have to find a way around the construction – specifically, drivers who are a part of the bustling service industry on the Las Vegas Strip.

"Folks who use southbound I-15 to get to either the businesses or some of the great resorts on Tropicana, they're gonna have to find a new way to get down there for the long term," Hopkins said.

​The biggest impact on traffic will happen on Jan. 27, when crews will begin a full closure of I-15 North and South that will last nearly three whole days, beginning Friday night at 10:00 p.m.

I-15 will be closed from Flamingo Road in the north until Russell Road in the South. Both directions are on schedule to reopen by 5:00 a.m. on Monday, Jan. 30.

​Suggested detours would be to take I-15 North to the I-215 western beltway to get to Summerlin Parkway, Centennial Hills or Aliante. Commuters can also take I-15 to the I-215 eastern beltway to US-95 to get to downtown and North Las Vegas.

For real-time traffic updates, visit https://www.ktnv.com/traffic (https://www.ktnv.com/traffic).

NDOT video that they've put out on various social media warning area drivers to plan ahead for the Dropicana closures:
https://youtu.be/vGhIAJrCpb0
Title: Re: I-15/Tropicana interchange rebuild
Post by: roadman65 on January 15, 2023, 02:35:35 PM
https://goo.gl/maps/GLkb8zJqL61dQu8n6
Wonder if Salt Lake will be changed to Salt Lake City?
Title: Re: I-15/Tropicana interchange rebuild
Post by: roadfro on January 21, 2023, 05:54:45 PM
NDOT posted a "last drive" over the existing SB-to-EB Tropicana flyover before the Dropicana began:
https://youtu.be/gshccNO-_Hw

That flyover was the first of three southbound flyovers to be constructed along I-15 (later ramps were built at Sahara & Spring Mountain), and was one of the first third-level freeway ramps to be constructed in Nevada.
Title: Re: I-15/Tropicana interchange rebuild
Post by: Scott5114 on January 21, 2023, 06:51:40 PM
Is...Is Nevada DOT normally like this?
Title: Re: I-15/Tropicana interchange rebuild
Post by: roadfro on January 22, 2023, 06:29:13 PM
Not really. I think they're trying to drive home the fact that the "Dropicana" element of this project is going to cause significant delay for a couple weeks and the fact that this will be a long-term closure of the southbound off-ramp.

Although, I will say ever since the I-405 "Carmageddon" thing Caltrans did several years ago, NDOT is more apt to come up with cutsey names like this for particular phases of large projects...
Title: Re: I-15/Tropicana interchange rebuild
Post by: roadfro on February 06, 2023, 12:32:31 AM
This article has photos of the recent I-15 "Dropicana" closure. So unusual to have the busiest section of freeway in the state have a full closure for several days.

Rare US scene: Major interstate closed all weekend – PHOTOS (https://www.reviewjournal.com/local/traffic/rare-us-scene-major-interstate-closed-all-weekend-photos-2720185/), Las Vegas Review-Journal, 1/28/2023
(https://www.reviewjournal.com/wp-content/uploads/2023/01/17408871_web1_I-15-CLOSURE_012823ev_010.jpg?crop=1)
(https://www.reviewjournal.com/wp-content/uploads/2023/01/17405823_web1_I-15-CLOSURE_012823ev_004.jpg?crop=1)
(https://www.reviewjournal.com/wp-content/uploads/2023/01/17408871_web1_I-15-CLOSURE_012823ev_018.jpg?crop=1)




Here's one more photo of the demolition work in progress, from this article that also talks about the overall success of the closure and next phases of construction:

One I-15 closure down, one to go: NDOT happy with "˜Dropicana' work (https://www.reviewjournal.com/local/traffic/one-i-15-closure-down-one-to-go-ndot-happy-with-dropicana-work-2720761/), Las Vegas Review-Journal, 1/30/2023
(https://www.reviewjournal.com/wp-content/uploads/2023/01/17408871_web1_I-15-CLOSURE-JAN-28-23-WEB.jpg?crop=1)
Quote
Motorists survived the first of two planned full shutdowns of Interstate 15 related to the I-15/Tropicana Avenue interchange project known as "Dropicana."

The Nevada Department of Transportation said it is pleased with how drivers navigated the closure of I-15 in both directions between Russell and Flamingo roads from late Friday night into early Monday morning.

"We saw significantly reduced traffic volumes,"  NDOT spokesman Justin Hopkins said. "It appears drivers heeded the warnings to avoid the area and others used appropriate detours to get around. The work to remove the northern half of the Tropicana bridge was efficient, and we were able to reopen both Tropicana and I-15 ahead of schedule."

Between Dean Martin Drive and the New York-New York, Tropicana was closed to traffic for eight days and also reopened Monday. The Tropicana bridge over I-15 reopened to two lanes in each direction, with a temporary traffic pattern known as a diverging diamond interchange.

"A DDI is designed to reduce congestion and improve safety and efficiency, especially during times of construction when the road has reduced capacity,"  Hopkins said. "The DDI allows for continuous traffic flow during construction, reducing the need for detours. The DDI reduces the potential for collisions and improves safety for drivers. The DDI design reduces the number of conflict points and allows for a smoother traffic flow during construction."

There are three other diverging diamond interchanges in Southern Nevada – Horizon Drive at U.S. Highway 95 in Henderson, Kyle Canyon Road at U.S. 95, and the lanes under I-15 at U.S. 95, Hopkins noted.

"Drivers on Tropicana will notice new barriers and temporary signals helping guide them through the DDI,"  he said. "We recognize that it will take a little getting used to, but we are confident drivers will adapt quickly."
<...>
The current phase of the I-15/Tropicana project is aimed at rebuilding the northern half of the Tropicana bridge. Once that is completed, traffic on Tropicana will be shifted to the new bridge, and the southern side will be demolished and rebuilt.

To allow for the southern half of the Tropicana bridge to be rebuilt, another full closure of I-15 is planned in Phase 3 of the project.

NDOT anticipates that will come in the fall, when crews demolish the southern half of the Tropicana overpass. The exact dates will be announced as that work draws near.
<...>

An error in that article, describing the other DDIs: The third one is the lanes under I-15 at U.S. 93 (not 95).

I didn't know they'd be implementing a temporary DDI on the Tropicana structure. But in thinking about it, that is probably the most efficient way to keep through traffic moving, especially in dealing with left turn movements to the on ramps on a bridge structure with reduced lanes.
Title: Re: I-15/Tropicana interchange rebuild
Post by: Occidental Tourist on March 21, 2023, 10:04:20 PM
Here's what the interchange currently looks like during the weekday evening rush hour:

(https://i.imgur.com/vNI4x6N.jpg)
Title: Re: I-15/Tropicana interchange rebuild
Post by: gonealookin on April 20, 2023, 08:46:59 PM
With the Oakland A's signing a purchase agreement for land to build a baseball stadium at the northwest corner of Tropicana and Dean Martin Drive, I can envision a separate pedestrian (and possibly bus) bridge being added, crossing Frank Sinatra Drive, I-15 and Dean Martin Drive and more or less connecting T-Mobile Arena with the new ballpark.  You're going to need to move a lot of people from The Strip to the ballpark for 81 major league baseball games per season.  It wouldn't literally be a part of this NDOT project as a ballpark agreement won't be finalized for several more months at least, but it's another improvement I'd expect to see in this area if the ballpark deal does happen.
Title: Re: I-15/Tropicana interchange rebuild
Post by: DenverBrian on April 22, 2023, 10:59:17 PM
Quote from: gonealookin on April 20, 2023, 08:46:59 PM
With the Oakland A's signing a purchase agreement for land to build a baseball stadium at the northwest corner of Tropicana and Dean Martin Drive, I can envision a separate pedestrian (and possibly bus) bridge being added, crossing Frank Sinatra Drive, I-15 and Dean Martin Drive and more or less connecting T-Mobile Arena with the new ballpark.  You're going to need to move a lot of people from The Strip to the ballpark for 81 major league baseball games per season.  It wouldn't literally be a part of this NDOT project as a ballpark agreement won't be finalized for several more months at least, but it's another improvement I'd expect to see in this area if the ballpark deal does happen.
That looks like a very tight squeeze for a ballpark and associated parking at that spot.
Title: Re: I-15/Tropicana interchange rebuild
Post by: gonealookin on April 22, 2023, 11:29:31 PM
Quote from: DenverBrian on April 22, 2023, 10:59:17 PM
Quote from: gonealookin on April 20, 2023, 08:46:59 PM
With the Oakland A's signing a purchase agreement for land to build a baseball stadium at the northwest corner of Tropicana and Dean Martin Drive, I can envision a separate pedestrian (and possibly bus) bridge being added, crossing Frank Sinatra Drive, I-15 and Dean Martin Drive and more or less connecting T-Mobile Arena with the new ballpark.  You're going to need to move a lot of people from The Strip to the ballpark for 81 major league baseball games per season.  It wouldn't literally be a part of this NDOT project as a ballpark agreement won't be finalized for several more months at least, but it's another improvement I'd expect to see in this area if the ballpark deal does happen.
That looks like a very tight squeeze for a ballpark and associated parking at that spot.

No, that's not right; the purchase agreement is for 49 acres of land west of Dean Martin Drive and north of Tropicana.  I think Target Field in Minneapolis is on about 8 acres, and Fenway Park in Boston is about the same.  So 49 acres is plenty.  They are talking about an "Entertainment District" on some of the acreage outside the ballpark; not sure why Vegas would need any more of that, especially on the west side of I-15 away from The Strip.
Title: Re: I-15/Tropicana interchange rebuild
Post by: CtrlAltDel on April 23, 2023, 12:10:48 AM
Quote from: gonealookin on April 22, 2023, 11:29:31 PM
Quote from: DenverBrian on April 22, 2023, 10:59:17 PM
Quote from: gonealookin on April 20, 2023, 08:46:59 PM
With the Oakland A's signing a purchase agreement for land to build a baseball stadium at the northwest corner of Tropicana and Dean Martin Drive, I can envision a separate pedestrian (and possibly bus) bridge being added, crossing Frank Sinatra Drive, I-15 and Dean Martin Drive and more or less connecting T-Mobile Arena with the new ballpark.  You're going to need to move a lot of people from The Strip to the ballpark for 81 major league baseball games per season.  It wouldn't literally be a part of this NDOT project as a ballpark agreement won't be finalized for several more months at least, but it's another improvement I'd expect to see in this area if the ballpark deal does happen.
That looks like a very tight squeeze for a ballpark and associated parking at that spot.

No, that's not right; the purchase agreement is for 49 acres of land west of Dean Martin Drive and north of Tropicana.  I think Target Field in Minneapolis is on about 8 acres, and Fenway Park in Boston is about the same.  So 49 acres is plenty.  They are talking about an "Entertainment District" on some of the acreage outside the ballpark; not sure why Vegas would need any more of that, especially on the west side of I-15 away from The Strip.

That 49 acres suggests that the plot might be something like this, maybe:
(https://i.imgur.com/T5Sm3OY.png)
Title: Re: I-15/Tropicana interchange rebuild
Post by: skluth on April 23, 2023, 12:03:49 PM
Quote from: CtrlAltDel on April 23, 2023, 12:10:48 AM
Quote from: gonealookin on April 22, 2023, 11:29:31 PM
Quote from: DenverBrian on April 22, 2023, 10:59:17 PM
Quote from: gonealookin on April 20, 2023, 08:46:59 PM
With the Oakland A's signing a purchase agreement for land to build a baseball stadium at the northwest corner of Tropicana and Dean Martin Drive, I can envision a separate pedestrian (and possibly bus) bridge being added, crossing Frank Sinatra Drive, I-15 and Dean Martin Drive and more or less connecting T-Mobile Arena with the new ballpark.  You're going to need to move a lot of people from The Strip to the ballpark for 81 major league baseball games per season.  It wouldn't literally be a part of this NDOT project as a ballpark agreement won't be finalized for several more months at least, but it's another improvement I'd expect to see in this area if the ballpark deal does happen.
That looks like a very tight squeeze for a ballpark and associated parking at that spot.

No, that's not right; the purchase agreement is for 49 acres of land west of Dean Martin Drive and north of Tropicana.  I think Target Field in Minneapolis is on about 8 acres, and Fenway Park in Boston is about the same.  So 49 acres is plenty.  They are talking about an "Entertainment District" on some of the acreage outside the ballpark; not sure why Vegas would need any more of that, especially on the west side of I-15 away from The Strip.

That 49 acres suggests that the plot might be something like this, maybe:
(image deleted)

I think you've got it right. I also measured it at about 49 acres. Entertainment districts around ballparks of all sports are big these days as teams are trying to make their stadiums more than a gameday experience. They also make the land more valuable than just a stadium surrounded by parking lots. I've seen what's been done around Lambeau Field in Green Bay and it's impressive - and certainly a better use (and aesthetically nicer looking) than before though Lambeau still has a sea of parking around it. I was surprised the Raiders didn't do this with their new stadium which is a dead zone outside of the ten or so game days/year.

gonealookin makes a great point about building a new bridge across I-15. It would greatly help access from the Strip. I don't know if one could be incorporated into the current Tropicana interchange rebuild (https://www.i15trop.com/), but it's the perfect time to build one as traffic is already being disrupted.
Title: Re: I-15/Tropicana interchange rebuild
Post by: Sub-Urbanite on April 24, 2023, 01:42:36 PM
Man, if we thought a lot pedestrians died trying to drunkenly run across I-15 *before* this...
Title: Re: I-15/Tropicana interchange rebuild
Post by: roadfro on April 24, 2023, 02:03:34 PM
Quote from: gonealookin on April 20, 2023, 08:46:59 PM
With the Oakland A's signing a purchase agreement for land to build a baseball stadium at the northwest corner of Tropicana and Dean Martin Drive, I can envision a separate pedestrian (and possibly bus) bridge being added, crossing Frank Sinatra Drive, I-15 and Dean Martin Drive and more or less connecting T-Mobile Arena with the new ballpark.  You're going to need to move a lot of people from The Strip to the ballpark for 81 major league baseball games per season.  It wouldn't literally be a part of this NDOT project as a ballpark agreement won't be finalized for several more months at least, but it's another improvement I'd expect to see in this area if the ballpark deal does happen.
Quote from: skluth on April 23, 2023, 12:03:49 PM
gonealookin makes a great point about building a new bridge across I-15. It would greatly help access from the Strip. I don't know if one could be incorporated into the current Tropicana interchange rebuild (https://www.i15trop.com/), but it's the perfect time to build one as traffic is already being disrupted.

The current project is already going to include new 10-foot wide sidewalks on the new Tropicana bridge, and a new pedestrian walkway between Tropicana and Arena Dr (the access road south of T-Mobile Arena). So a separate pedestrian bridge seems unlikely to happen. I think they were already partially envisioning wider sidewalks on Tropicana to serve as an alternate pedestrian access route to Allegiant Stadium.

This is a kinda nice idea, though. If there was a pedestrian bridge connection from where Park Ave (the road adjacent to T-Mobile Arena) meets Frank Sinatra Dr, going directly west over I-15, it could potentially touch down right in the center of the proposed ballpark development. That would be a nicer pedestrian route, since Park Ave is already basically the same kind of outdoor mall/plaza entertainment district connecting T-Mobile Arena to the Strip.
Title: Re: I-15/Tropicana interchange rebuild
Post by: Sub-Urbanite on April 24, 2023, 05:06:05 PM
Quote from: roadfro on April 24, 2023, 02:03:34 PM
Quote from: gonealookin on April 20, 2023, 08:46:59 PM
With the Oakland A's signing a purchase agreement for land to build a baseball stadium at the northwest corner of Tropicana and Dean Martin Drive, I can envision a separate pedestrian (and possibly bus) bridge being added, crossing Frank Sinatra Drive, I-15 and Dean Martin Drive and more or less connecting T-Mobile Arena with the new ballpark.  You're going to need to move a lot of people from The Strip to the ballpark for 81 major league baseball games per season.  It wouldn't literally be a part of this NDOT project as a ballpark agreement won't be finalized for several more months at least, but it's another improvement I'd expect to see in this area if the ballpark deal does happen.
Quote from: skluth on April 23, 2023, 12:03:49 PM
gonealookin makes a great point about building a new bridge across I-15. It would greatly help access from the Strip. I don't know if one could be incorporated into the current Tropicana interchange rebuild (https://www.i15trop.com/), but it's the perfect time to build one as traffic is already being disrupted.

The current project is already going to include new 10-foot wide sidewalks on the new Tropicana bridge, and a new pedestrian walkway between Tropicana and Arena Dr (the access road south of T-Mobile Arena). So a separate pedestrian bridge seems unlikely to happen. I think they were already partially envisioning wider sidewalks on Tropicana to serve as an alternate pedestrian access route to Allegiant Stadium.

This is a kinda nice idea, though. If there was a pedestrian bridge connection from where Park Ave (the road adjacent to T-Mobile Arena) meets Frank Sinatra Dr, going directly west over I-15, it could potentially touch down right in the center of the proposed ballpark development. That would be a nicer pedestrian route, since Park Ave is already basically the same kind of outdoor mall/plaza entertainment district connecting T-Mobile Arena to the Strip.

I don't care about a new pedestrian bridge — though one would be nice — but more substantial fencing is needed. The 6 foot chain links just don't stop humans from unintentionally ending their lives on that freeway.
Title: Re: I-15/Tropicana interchange rebuild
Post by: The Ghostbuster on April 24, 2023, 05:13:17 PM
The Tropicana Interchange name brings to mind the 1983 Wham! song: https://www.youtube.com/watch?v=WYX0sjP6Za8.
Title: Re: I-15/Tropicana interchange rebuild
Post by: Rothman on April 24, 2023, 07:48:00 PM
Quote from: Sub-Urbanite on April 24, 2023, 05:06:05 PM
Quote from: roadfro on April 24, 2023, 02:03:34 PM
Quote from: gonealookin on April 20, 2023, 08:46:59 PM
With the Oakland A's signing a purchase agreement for land to build a baseball stadium at the northwest corner of Tropicana and Dean Martin Drive, I can envision a separate pedestrian (and possibly bus) bridge being added, crossing Frank Sinatra Drive, I-15 and Dean Martin Drive and more or less connecting T-Mobile Arena with the new ballpark.  You're going to need to move a lot of people from The Strip to the ballpark for 81 major league baseball games per season.  It wouldn't literally be a part of this NDOT project as a ballpark agreement won't be finalized for several more months at least, but it's another improvement I'd expect to see in this area if the ballpark deal does happen.
Quote from: skluth on April 23, 2023, 12:03:49 PM
gonealookin makes a great point about building a new bridge across I-15. It would greatly help access from the Strip. I don't know if one could be incorporated into the current Tropicana interchange rebuild (https://www.i15trop.com/), but it's the perfect time to build one as traffic is already being disrupted.

The current project is already going to include new 10-foot wide sidewalks on the new Tropicana bridge, and a new pedestrian walkway between Tropicana and Arena Dr (the access road south of T-Mobile Arena). So a separate pedestrian bridge seems unlikely to happen. I think they were already partially envisioning wider sidewalks on Tropicana to serve as an alternate pedestrian access route to Allegiant Stadium.

This is a kinda nice idea, though. If there was a pedestrian bridge connection from where Park Ave (the road adjacent to T-Mobile Arena) meets Frank Sinatra Dr, going directly west over I-15, it could potentially touch down right in the center of the proposed ballpark development. That would be a nicer pedestrian route, since Park Ave is already basically the same kind of outdoor mall/plaza entertainment district connecting T-Mobile Arena to the Strip.

I don't care about a new pedestrian bridge — though one would be nice — but more substantial fencing is needed. The 6 foot chain links just don't stop humans from unintentionally ending their lives on that freeway.
Quote from: Sub-Urbanite on April 24, 2023, 05:06:05 PM
Quote from: roadfro on April 24, 2023, 02:03:34 PM
Quote from: gonealookin on April 20, 2023, 08:46:59 PM
With the Oakland A's signing a purchase agreement for land to build a baseball stadium at the northwest corner of Tropicana and Dean Martin Drive, I can envision a separate pedestrian (and possibly bus) bridge being added, crossing Frank Sinatra Drive, I-15 and Dean Martin Drive and more or less connecting T-Mobile Arena with the new ballpark.  You're going to need to move a lot of people from The Strip to the ballpark for 81 major league baseball games per season.  It wouldn't literally be a part of this NDOT project as a ballpark agreement won't be finalized for several more months at least, but it's another improvement I'd expect to see in this area if the ballpark deal does happen.
Quote from: skluth on April 23, 2023, 12:03:49 PM
gonealookin makes a great point about building a new bridge across I-15. It would greatly help access from the Strip. I don't know if one could be incorporated into the current Tropicana interchange rebuild (https://www.i15trop.com/), but it's the perfect time to build one as traffic is already being disrupted.

The current project is already going to include new 10-foot wide sidewalks on the new Tropicana bridge, and a new pedestrian walkway between Tropicana and Arena Dr (the access road south of T-Mobile Arena). So a separate pedestrian bridge seems unlikely to happen. I think they were already partially envisioning wider sidewalks on Tropicana to serve as an alternate pedestrian access route to Allegiant Stadium.

This is a kinda nice idea, though. If there was a pedestrian bridge connection from where Park Ave (the road adjacent to T-Mobile Arena) meets Frank Sinatra Dr, going directly west over I-15, it could potentially touch down right in the center of the proposed ballpark development. That would be a nicer pedestrian route, since Park Ave is already basically the same kind of outdoor mall/plaza entertainment district connecting T-Mobile Arena to the Strip.

I don't care about a new pedestrian bridge — though one would be nice — but more substantial fencing is needed. The 6 foot chain links just don't stop humans from unintentionally ending their lives on that freeway.

Have to be pretty intentional to climb up and over a six-foot fence.
Title: Re: I-15/Tropicana interchange rebuild
Post by: Sub-Urbanite on April 25, 2023, 12:07:57 PM
Quote from: Rothman on April 24, 2023, 07:48:00 PM
Quote from: Sub-Urbanite on April 24, 2023, 05:06:05 PM
I don't care about a new pedestrian bridge — though one would be nice — but more substantial fencing is needed. The 6 foot chain links just don't stop humans from unintentionally ending their lives on that freeway.

Have to be pretty intentional to climb up and over a six-foot fence.

I know a few folks who have found themselves in Vegas, on the west side of I-15, thinking "The Strip is riiiiiiiight there" and also were drunk out of their minds.

Title: Re: I-15/Tropicana interchange rebuild
Post by: DenverBrian on April 25, 2023, 11:58:26 PM
Quote from: gonealookin on April 22, 2023, 11:29:31 PM
Quote from: DenverBrian on April 22, 2023, 10:59:17 PM
Quote from: gonealookin on April 20, 2023, 08:46:59 PM
With the Oakland A's signing a purchase agreement for land to build a baseball stadium at the northwest corner of Tropicana and Dean Martin Drive, I can envision a separate pedestrian (and possibly bus) bridge being added, crossing Frank Sinatra Drive, I-15 and Dean Martin Drive and more or less connecting T-Mobile Arena with the new ballpark.  You're going to need to move a lot of people from The Strip to the ballpark for 81 major league baseball games per season.  It wouldn't literally be a part of this NDOT project as a ballpark agreement won't be finalized for several more months at least, but it's another improvement I'd expect to see in this area if the ballpark deal does happen.
That looks like a very tight squeeze for a ballpark and associated parking at that spot.

No, that's not right; the purchase agreement is for 49 acres of land west of Dean Martin Drive and north of Tropicana.  I think Target Field in Minneapolis is on about 8 acres, and Fenway Park in Boston is about the same.  So 49 acres is plenty.  They are talking about an "Entertainment District" on some of the acreage outside the ballpark; not sure why Vegas would need any more of that, especially on the west side of I-15 away from The Strip.
Here's the Coors Field entry...note that it's 76 acres. https://www.mlb.com/rockies/ballpark/information
But...Yankee Stadium claims 24 acres, and Oracle Park claims 12.5 acres, so I guess they can get it in there!
Title: Re: I-15/Tropicana interchange rebuild
Post by: Henry on April 26, 2023, 10:30:27 AM
Quote from: DenverBrian on April 25, 2023, 11:58:26 PM
Quote from: gonealookin on April 22, 2023, 11:29:31 PM
Quote from: DenverBrian on April 22, 2023, 10:59:17 PM
Quote from: gonealookin on April 20, 2023, 08:46:59 PM
With the Oakland A's signing a purchase agreement for land to build a baseball stadium at the northwest corner of Tropicana and Dean Martin Drive, I can envision a separate pedestrian (and possibly bus) bridge being added, crossing Frank Sinatra Drive, I-15 and Dean Martin Drive and more or less connecting T-Mobile Arena with the new ballpark.  You're going to need to move a lot of people from The Strip to the ballpark for 81 major league baseball games per season.  It wouldn't literally be a part of this NDOT project as a ballpark agreement won't be finalized for several more months at least, but it's another improvement I'd expect to see in this area if the ballpark deal does happen.
That looks like a very tight squeeze for a ballpark and associated parking at that spot.

No, that's not right; the purchase agreement is for 49 acres of land west of Dean Martin Drive and north of Tropicana.  I think Target Field in Minneapolis is on about 8 acres, and Fenway Park in Boston is about the same.  So 49 acres is plenty.  They are talking about an "Entertainment District" on some of the acreage outside the ballpark; not sure why Vegas would need any more of that, especially on the west side of I-15 away from The Strip.
Here's the Coors Field entry...note that it's 76 acres. https://www.mlb.com/rockies/ballpark/information
But...Yankee Stadium claims 24 acres, and Oracle Park claims 12.5 acres, so I guess they can get it in there!
I imagine that this would be along the lines of The Battery outside Atlanta. That area is 52 acres, so it's a comparable example.

(BTW, Wrigley Field is probably 11 acres, slightly larger than Fenway.)
Title: Re: I-15/Tropicana interchange rebuild
Post by: roadman65 on June 12, 2023, 02:44:05 AM
https://www.i15trop.com/new-tropicana-ave-traffic-pattern/
I see this Summer, NDOT is using a DDI during construction of the interchange between I-15 and Tropicana Avenue to help ease traffic to and from the south.

Unlike other DDIs which remain, this one will perish once the NB ramps are completed.
Title: Re: I-15/Tropicana interchange rebuild
Post by: roadman65 on June 14, 2023, 02:00:18 AM
The In and Out Burger on the NE Corner of Tropicana and Dean Martin will not be as accessible as its name suggests once the I-15 and Tropicana Avenue project is completed.  The plan calls for eliminating the said intersection for a grade separation and being the driveway to the In and Out is located on Dean Martin Drive, traffic to it from Tropicana won't be able to access it ( which is where most of its business comes from) afterwards.
Title: Re: I-15/Tropicana interchange rebuild
Post by: Rothman on June 14, 2023, 06:39:52 AM
Let us take a moment to mourn the change of access to a Las Vegas In-N-Out.

...

Back to work.
Title: Re: I-15/Tropicana interchange rebuild
Post by: heynow415 on June 14, 2023, 11:06:38 AM
Quote from: Rothman on June 14, 2023, 06:39:52 AM
Let us take a moment to mourn the change of access to a Las Vegas In-N-Out.

...

Back to work.

At least by Las Vegas standards, this In-n-Out may qualify for the historic register and thus be entitled to retaining its access  :spin:    IIRC, this location was one of the first, if not the first, In-n-Out forays beyond southern California, even before appearing north of the Grapevine.
Title: Re: I-15/Tropicana interchange rebuild
Post by: Occidental Tourist on June 16, 2023, 04:24:45 AM
Looks like there will be RIROs on both sides of Tropicana down to Dean Martin Drive, with the westbound one basically being the same direct access to the In-n-Out from Tropicana as currently exists. The eastbound routing will subject you to one additional stoplight than what currently exists.  Instead of making a direct left turn from e/b Tropicana to Dean Martin Drive to get the In-n-Out, you'll have to make a right, go down to the light at the new Dean Martin, and make 2 lefts.
Title: Re: I-15/Tropicana interchange rebuild
Post by: kernals12 on June 17, 2023, 08:53:52 PM
I drove through the Dropicana today. It was the only freeway traffic jam I encountered.
Title: Re: I-15/Tropicana interchange rebuild
Post by: roadfro on October 29, 2023, 01:09:36 PM
I don't know that the goal in this article title will be achieved... but the article does give us a tangible update on the Tropicana interchange project.

Las Vegas Super Bowl aims to be the 'least congested' traffic-wise (https://www.reviewjournal.com/news/news-columns/road-warrior/las-vegas-super-bowl-aims-to-be-the-least-congested-traffic-wise-2926386), Las Vegas Review-Journal, 10/23/2023
Quote from: Mick Ackers, LVRJ
Organizers are looking to make the 2024 Super Bowl the least congested in history. To help their efforts, extra resources have been made available for the ongoing $305 million Interstate 15/Tropicana Avenue project.

The Nevada Department of Transportation has made extra money available to go toward workers with project contractor Kiewit Infrastructure West to allow for extra work shifts to speed up work on the Tropicana bridge.
<...>
"In advance of the Super Bowl, NDOT is actively working with the I-15/Tropicana Ave. Interchange contractor on a revised work plan that will include additional staff support above the current contract requirements," [NDOT Spokesperson Justin] Hopkins said. "The contractor is developing a project schedule that will ensure completion of the north half of the Tropicana Ave. bridge before the Super Bowl while leaving the south half of the bridge intact until after the Super Bowl."
<...>
"One of our goals is to make this Super Bowl the least congested Super Bowl ever," said Steve Hill, Las Vegas Convention and Visitors Authority president and CEO. "The fact that the city is so walkable it gives us a real headstart on that. The entire transportation team in the valley is working on this. NDOT has stepped up with this Tropicana/I-15 intersection is being worked on right now and the north half of that is torn out and makes it difficult. It is the gateway to the Super Bowl."

With the north half of the Tropicana bridge planned to be complete in time for the Super Bowl, scheduled for Feb. 11, that will provide the opportunity to allow more traffic over the bridge than what the constricted road currently can handle. The diverging diamond interchange setup will not be in place during Super Bowl week.

"That work will be paused the week of the Super Bowl, but that intersection will basically be completely open, (and) because the north part will be done, there will be additional capacity that we haven't even had on the north part of the intersection."

Construction on improving the south portion of the Tropicana bridge will begin following the conclusion of Super Bowl week, Hill said.

"We're taking steps like that to make sure that this is the smoothest transportation Super Bowl ever," Hill said.
<...>
Title: Re: I-15/Tropicana interchange rebuild
Post by: heynow415 on October 30, 2023, 11:54:58 AM
. . . said Steve Hill, Las Vegas Convention and Visitors Authority president and CEO. "The fact that the city is so walkable it gives us a real headstart on that.

Now that's funny.  With the constant construction and disruption obstructing sidewalks, sidewalks that are somewhat functional located right next to 45+mph traffic, superblocks that have no connectivity through them, and needing circuitous-route escalators and overpasses to cross the street because the roads are so congested isn't what is typically considered "pedestrian friendly" 
Title: Re: I-15/Tropicana interchange rebuild
Post by: Rothman on October 30, 2023, 12:36:11 PM
Quote from: heynow415 on October 30, 2023, 11:54:58 AM
. . . said Steve Hill, Las Vegas Convention and Visitors Authority president and CEO. "The fact that the city is so walkable it gives us a real headstart on that.

Now that's funny.  With the constant construction and disruption obstructing sidewalks, sidewalks that are somewhat functional located right next to 45+mph traffic, superblocks that have no connectivity through them, and needing circuitous-route escalators and overpasses to cross the street because the roads are so congested isn't what is typically considered "pedestrian friendly"
Oof.  My sister and her significant other recently went to Vegas, stayed some blocks off the Strip, thinking they could walk.  Well, no.  No, they could not, due to Vegas' very disconnected sidewalks.
Title: Re: I-15/Tropicana interchange rebuild
Post by: Plutonic Panda on October 30, 2023, 01:49:08 PM
Quote from: Rothman on October 30, 2023, 12:36:11 PM
Quote from: heynow415 on October 30, 2023, 11:54:58 AM
. . . said Steve Hill, Las Vegas Convention and Visitors Authority president and CEO. "The fact that the city is so walkable it gives us a real headstart on that.

Now that's funny.  With the constant construction and disruption obstructing sidewalks, sidewalks that are somewhat functional located right next to 45+mph traffic, superblocks that have no connectivity through them, and needing circuitous-route escalators and overpasses to cross the street because the roads are so congested isn't what is typically considered "pedestrian friendly"
Oof.  My sister and her significant other recently went to Vegas, stayed some blocks off the Strip, thinking they could walk.  Well, no.  No, they could not, due to Vegas' very disconnected sidewalks.
"Some blocks" ??? How many blocks are talking about? Vegas sidewalk connectivity isn't that bad. I would be more worried about crime in certain areas. Visit OKC if you want to see what a truly disconnected sidewalk network looks like lol
Title: Re: I-15/Tropicana interchange rebuild
Post by: Rothman on October 30, 2023, 01:56:06 PM
Quote from: Plutonic Panda on October 30, 2023, 01:49:08 PM
Quote from: Rothman on October 30, 2023, 12:36:11 PM
Quote from: heynow415 on October 30, 2023, 11:54:58 AM
. . . said Steve Hill, Las Vegas Convention and Visitors Authority president and CEO. "The fact that the city is so walkable it gives us a real headstart on that.

Now that's funny.  With the constant construction and disruption obstructing sidewalks, sidewalks that are somewhat functional located right next to 45+mph traffic, superblocks that have no connectivity through them, and needing circuitous-route escalators and overpasses to cross the street because the roads are so congested isn't what is typically considered "pedestrian friendly"
Oof.  My sister and her significant other recently went to Vegas, stayed some blocks off the Strip, thinking they could walk.  Well, no.  No, they could not, due to Vegas' very disconnected sidewalks.
"Some blocks" ??? How many blocks are talking about? Vegas sidewalk connectivity isn't that bad. I would be more worried about crime in certain areas. Visit OKC if you want to see what a truly disconnected sidewalk network looks like lol
4 long ones, I believe.
Title: Re: I-15/Tropicana interchange rebuild
Post by: Plutonic Panda on October 30, 2023, 03:34:28 PM
Quote from: Rothman on October 30, 2023, 01:56:06 PM
Quote from: Plutonic Panda on October 30, 2023, 01:49:08 PM
Quote from: Rothman on October 30, 2023, 12:36:11 PM
Quote from: heynow415 on October 30, 2023, 11:54:58 AM
. . . said Steve Hill, Las Vegas Convention and Visitors Authority president and CEO. "The fact that the city is so walkable it gives us a real headstart on that.

Now that's funny.  With the constant construction and disruption obstructing sidewalks, sidewalks that are somewhat functional located right next to 45+mph traffic, superblocks that have no connectivity through them, and needing circuitous-route escalators and overpasses to cross the street because the roads are so congested isn't what is typically considered "pedestrian friendly"
Oof.  My sister and her significant other recently went to Vegas, stayed some blocks off the Strip, thinking they could walk.  Well, no.  No, they could not, due to Vegas' very disconnected sidewalks.
"Some blocks" ??? How many blocks are talking about? Vegas sidewalk connectivity isn't that bad. I would be more worried about crime in certain areas. Visit OKC if you want to see what a truly disconnected sidewalk network looks like lol
4 long ones, I believe.
Yeah blocks can vary pretty greatly from city to city. Blocks start to become square miles not far from the strip. If it's in the unincorporated counties(of which the strip is) then I can see disconnected sidewalks. It drives me nuts to see the condition of the sidewalks in LA. It's like you walking up a mini mountain.
Title: Re: I-15/Tropicana interchange rebuild
Post by: roadfro on January 22, 2024, 01:46:06 AM
BUMP to announce that the I-15/Harmon Ave HOV half interchange should be opening next week.

New I-15-Harmon half interchange to open soon (https://www.reviewjournal.com/local/traffic/new-i-15-harmon-half-interchange-to-open-soon-2983935), Las Vegas Review-Journal, 1/18/2024
Quote
The newly constructed Interstate 15-Harmon Avenue half interchange now has an opening date.

The interchange, which is part of the $305 million I-15/Tropicana project, will open to traffic Jan. 26, the Nevada Department of Transportation announced Thursday.

Drivers will be able to access Harmon from I-15 northbound via the high occupancy vehicle lane on the far left on the interstate starting Jan. 26. Motorists can enter I-15 southbound from Harmon at the interchange that will lead drivers to the HOV lane on the interstate.

There is no I-15 northbound access from Harmon and there is no Harmon access from I-15 southbound as part of the interchange.

The Harmon on-and-off-ramps are located on the far left lane of both directions of I-15 and will be under HOV restrictions between 6 and 8 a.m. and 4 and 6 p.m weekdays and open to all any hours outside of those and on the weekend.
Title: Re: I-15/Tropicana interchange rebuild
Post by: mrsman on January 24, 2024, 11:03:05 AM
Quote from: roadfro on January 22, 2024, 01:46:06 AM
BUMP to announce that the I-15/Harmon Ave HOV half interchange should be opening next week.

New I-15-Harmon half interchange to open soon (https://www.reviewjournal.com/local/traffic/new-i-15-harmon-half-interchange-to-open-soon-2983935), Las Vegas Review-Journal, 1/18/2024
Quote
The newly constructed Interstate 15-Harmon Avenue half interchange now has an opening date.

The interchange, which is part of the $305 million I-15/Tropicana project, will open to traffic Jan. 26, the Nevada Department of Transportation announced Thursday.

Drivers will be able to access Harmon from I-15 northbound via the high occupancy vehicle lane on the far left on the interstate starting Jan. 26. Motorists can enter I-15 southbound from Harmon at the interchange that will lead drivers to the HOV lane on the interstate.

There is no I-15 northbound access from Harmon and there is no Harmon access from I-15 southbound as part of the interchange.

The Harmon on-and-off-ramps are located on the far left lane of both directions of I-15 and will be under HOV restrictions between 6 and 8 a.m. and 4 and 6 p.m weekdays and open to all any hours outside of those and on the weekend.

This is interesting.

This post led me to do some more reading about HOV use in Las Vegas.  Currently, there is a continuous HOV lane from Elkhorn/US 95 in the northwest part of town following US 95 through the Spaghetti Bowl and then coming down I-15 to end south of the Strip.  There are direct connections to the street at Elkhorn, and at Neon Gateway, which is just south of Charleston - somewhat adjacent to Downtown.  Summerlin Parkway also has a direct connection.  The new ramps to Harmon will make the mid-Strip area have direct access to the HOV lanes, as Harmon is between Tropicana and Flamingo.  As mentioned above, the new ramps only serve to access people who are using the HOV lanes south of Harmon.

What I find interesting is that before these lanes were HOV, the lanes on I-15 were express lanes that were open to all traffic.  Unlike the express lanes that are now common in many areas, any driver could use them without paying toll, it was just that those committed to the express lanes were to siphon off traffic that was not going to exit in the Strip area.  By its design, they had pylons to separate express lane traffic from general traffic - similar to the design of the Capital Beltway express lanes in Virginia.

I also noticed that HOV hours have diminished over time.  Originally, there was a 24 hour HOV restriction that later got narrowed to 5AM - 10 PM and now is only restricted to the barest rush hours: 6-8 AM and 4-6 PM.  A lot of discussion has suggested that HOV doesn't work so well in Vegas because of the 24 hour economy many workers do not work typical schedules that would encourage carpooling.

So it would seem that perhaps, if politically feasible, the HOV lanes would be a good candidate for conversion to HO/T express lanes, allowing single occupancy vehicles access for a toll.
Title: Re: I-15/Tropicana interchange rebuild
Post by: Scott5114 on January 25, 2024, 12:04:06 AM
There's not much need for the toll if they're already built and paid for—why not just make them an express/local setup like they were before? I think they still have those in the Chicago area, don't they?
Title: Re: I-15/Tropicana interchange rebuild
Post by: cl94 on January 25, 2024, 01:32:13 AM
There actually have been proposals to convert them to HOT lanes. Bills never made it through the legislature.

On that note, Nevada also places very strict constitutional limits on tolling. Tolls can only be used to pay for the construction/ maintenance of the facility being tolled. No using tolls to pay for transit or other programs. This has been causing issues up at Lake Tahoe over the past few years, where some CA side local politicians want tolls at the lake to support transit, but NV is strongly opposed on grounds of the state constitution.

(Personal opinion emphasized)
Title: Re: I-15/Tropicana interchange rebuild
Post by: Scott5114 on January 25, 2024, 01:34:02 AM
So would that mean that toll money for a HOT lane could only be used to maintain that one lane?
Title: Re: I-15/Tropicana interchange rebuild
Post by: cl94 on January 25, 2024, 02:33:01 AM
Quote from: Scott5114 on January 25, 2024, 01:34:02 AM
So would that mean that toll money for a HOT lane could only be used to maintain that one lane?

Based on the wording of the state constitution, yes.
Title: Re: I-15/Tropicana interchange rebuild
Post by: mrsman on January 25, 2024, 07:11:51 PM
Quote from: Scott5114 on January 25, 2024, 12:04:06 AM
There's not much need for the toll if they're already built and paid for—why not just make them an express/local setup like they were before? I think they still have those in the Chicago area, don't they?

The idea of the tolling isn't so much for paying for the road, it serves as a system of congestion control.  Pay for the privilege of a faster commute.  Lexus lanes.

Quote from: cl94 on January 25, 2024, 01:32:13 AM
There actually have been proposals to convert them to HOT lanes. Bills never made it through the legislature.

On that note, Nevada also places very strict constitutional limits on tolling. Tolls can only be used to pay for the construction/ maintenance of the facility being tolled. No using tolls to pay for transit or other programs. This has been causing issues up at Lake Tahoe over the past few years, where some CA side local politicians want tolls at the lake to support transit, but NV is strongly opposed on grounds of the state constitution.

(Personal opinion emphasized)

Quote from: cl94 on January 25, 2024, 02:33:01 AM
Quote from: Scott5114 on January 25, 2024, 01:34:02 AM
So would that mean that toll money for a HOT lane could only be used to maintain that one lane?

Based on the wording of the state constitution, yes.

Wow!  If there are state laws preventing an effective HOT lane system, than it simply cannot happen.  Although one has to imagine that maintenance costs are definitely in the millions per year, even for one lane.  But likely they can only charge money during the traditional rush hour.

I would normally think that LV is a good market for HOT lanes because so many of the tourists have a high roller mentality and are willing to spend money.  But you can't go against the constitution.
Title: Re: I-15/Tropicana interchange rebuild
Post by: ran4sh on January 25, 2024, 08:22:19 PM
I would think that if  tourists really were going to use HOT lanes, then the state would consider changing the constitution to allow such lanes
Title: Re: I-15/Tropicana interchange rebuild
Post by: mgk920 on January 26, 2024, 01:30:01 PM
Quote from: ran4sh on January 25, 2024, 08:22:19 PM
I would think that if  tourists really were going to use HOT lanes, then the state would consider changing the constitution to allow such lanes

But would such a change play anywhere outstate?

Mike
Title: Re: I-15/Tropicana interchange rebuild
Post by: Scott5114 on January 29, 2024, 04:08:54 AM
Quote from: mrsman on January 25, 2024, 07:11:51 PM
I would normally think that LV is a good market for HOT lanes because so many of the tourists have a high roller mentality and are willing to spend money.  But you can't go against the constitution.

Wait, why are there tourists on the freeways to begin with? Most of them don't leave the Strip the entire time they're there, and if they do it's to go to Fremont Street.

If they're driving up from California, the I-15 HOV lane isn't going to be of any use to them, since it doesn't access any of the Strip exits.
Title: Re: I-15/Tropicana interchange rebuild
Post by: roadfro on January 29, 2024, 11:07:59 AM
Quote from: Scott5114 on January 29, 2024, 04:08:54 AM
Quote from: mrsman on January 25, 2024, 07:11:51 PM
I would normally think that LV is a good market for HOT lanes because so many of the tourists have a high roller mentality and are willing to spend money.  But you can't go against the constitution.

Wait, why are there tourists on the freeways to begin with? Most of them don't leave the Strip the entire time they're there, and if they do it's to go to Fremont Street.

If they're driving up from California, the I-15 HOV lane isn't going to be of any use to them, since it doesn't access any of the Strip exits.

The new HOV interchange at Harmon Ave would be useful in this regard. With access only to/from the south and situated between Tropicana & Flamingo, it provides HOV access to the heart of the Strip (right at the City Center complex).
Title: Re: I-15/Tropicana interchange rebuild
Post by: heynow415 on January 29, 2024, 12:04:01 PM
Quote from: Scott5114 on January 29, 2024, 04:08:54 AM
Quote from: mrsman on January 25, 2024, 07:11:51 PM
I would normally think that LV is a good market for HOT lanes because so many of the tourists have a high roller mentality and are willing to spend money.  But you can't go against the constitution.


If they're driving up from California, the I-15 HOV lane isn't going to be of any use to them, since it doesn't access any of the Strip exits.

The other issue would be that, unless Nevada used the same toll pass as California (Fastrak), drivers coming from CA wouldn't be able to use it anyway without getting a Nevada-specific toll pass.
Title: Re: I-15/Tropicana interchange rebuild
Post by: mrsman on January 31, 2024, 09:18:55 AM
Quote from: heynow415 on January 29, 2024, 12:04:01 PM
Quote from: Scott5114 on January 29, 2024, 04:08:54 AM
Quote from: mrsman on January 25, 2024, 07:11:51 PM
I would normally think that LV is a good market for HOT lanes because so many of the tourists have a high roller mentality and are willing to spend money.  But you can't go against the constitution.


If they're driving up from California, the I-15 HOV lane isn't going to be of any use to them, since it doesn't access any of the Strip exits.

The other issue would be that, unless Nevada used the same toll pass as California (Fastrak), drivers coming from CA wouldn't be able to use it anyway without getting a Nevada-specific toll pass.

The vast majority of Nevada's population lives relatively close to the CA border.  I think this is the main reason why a lot of CA practices for road signage seem to be adopted by NV as well.  I would imagine that if NV adopts a toll transponder, it should be compatible with Fastrak.

Ideally, all of North America should use the same type of transponder.
Title: Re: I-15/Tropicana interchange rebuild
Post by: jdbx on January 31, 2024, 12:58:00 PM
Quote from: mrsman on January 31, 2024, 09:18:55 AM
Quote from: heynow415 on January 29, 2024, 12:04:01 PM
Quote from: Scott5114 on January 29, 2024, 04:08:54 AM
Quote from: mrsman on January 25, 2024, 07:11:51 PM
I would normally think that LV is a good market for HOT lanes because so many of the tourists have a high roller mentality and are willing to spend money.  But you can't go against the constitution.


If they're driving up from California, the I-15 HOV lane isn't going to be of any use to them, since it doesn't access any of the Strip exits.

The other issue would be that, unless Nevada used the same toll pass as California (Fastrak), drivers coming from CA wouldn't be able to use it anyway without getting a Nevada-specific toll pass.

The vast majority of Nevada's population lives relatively close to the CA border.  I think this is the main reason why a lot of CA practices for road signage seem to be adopted by NV as well.  I would imagine that if NV adopts a toll transponder, it should be compatible with Fastrak.

Ideally, all of North America should use the same type of transponder.

MAP-21 was supposed to make this happen, but without any funding or enforcement mechanism, there seems to be little momentum to do so, at least here on the West Coast.
Title: Re: I-15/Tropicana interchange rebuild
Post by: Scott5114 on January 31, 2024, 09:51:01 PM
Quote from: mrsman on January 31, 2024, 09:18:55 AM
The vast majority of Nevada's population lives relatively close to the CA border.  I think this is the main reason why a lot of CA practices for road signage seem to be adopted by NV as well.

I think this is more to do with 1) the first signs in Nevada were supplied by ACSC and CSAA, the same organizations that provided signage in California, so the obvious evolution from those standards was the same on both sides of the state line, 2) California was the first to figure out how to do a whole bunch of stuff with freeway signage, so it was the obvious example to draw off of for a state that bordered it and 3) because California was such a large state, economies of scale meant it was cheaper to just buy the same things CA was buying.
Title: Re: I-15/Tropicana interchange rebuild
Post by: cl94 on February 01, 2024, 12:42:31 AM
NV and CA standards are more different than you'd expect. The only real commonalities are the dominant style of overhead sign gantry, which is also an old design used in Hawaii, and the design of mile markers, which is also used to some degree in Ohio. Historically, both used the same type of guy-wired signal mast arm, but NV moved to their current standard a long time ago. And NV signs/markings are almost always pure MUTCD.
Title: Re: I-15/Tropicana interchange rebuild
Post by: roadfro on February 01, 2024, 12:35:37 PM
NDOT posted this YouTube video recently, showing how traffic patterns at the 15/Trop interchange are going to be altered as they attempt to open up more capacity near Allegiant Stadium leading up to the Super Bowl, and subsequently perform "Dropicana 2.0" and move into the next major phase of construction.



Title: Re: I-15/Tropicana interchange rebuild
Post by: SSR_317 on February 17, 2024, 07:16:14 PM
Quote from: mrsman on January 31, 2024, 09:18:55 AM
Ideally, all of North America should use the same type of transponder.
Ideally, all of North America should ELIMINATE ALL TOLLED ROADS!

But I know that ain't gonna happen, as our governments just love to pass the costs of highways (and most everything else) down to the poorest people, all while giving huge tax breaks to the wealthy and corporate.
Title: Re: I-15/Tropicana interchange rebuild
Post by: Plutonic Panda on February 17, 2024, 07:31:47 PM
Quote from: SSR_317 on February 17, 2024, 07:16:14 PM
Quote from: mrsman on January 31, 2024, 09:18:55 AM
Ideally, all of North America should use the same type of transponder.
Ideally, all of North America should ELIMINATE ALL TOLLED ROADS!
Amen!
Title: Re: I-15/Tropicana interchange rebuild
Post by: CtrlAltDel on February 17, 2024, 07:51:52 PM
I-15 is closed this weekend.

(https://i.imgur.com/bBfb2Sr.png)
Title: Re: I-15/Tropicana interchange rebuild
Post by: Plutonic Panda on February 17, 2024, 08:49:43 PM
For what? They're closing the entire stretch of the freeway just for the one interchange?
Title: Re: I-15/Tropicana interchange rebuild
Post by: DenverBrian on February 17, 2024, 09:37:24 PM
Quote from: Plutonic Panda on February 17, 2024, 08:49:43 PM
For what? They're closing the entire stretch of the freeway just for the one interchange?
Define "entire stretch." This is from Flamingo to Russell Road.
Title: Re: I-15/Tropicana interchange rebuild
Post by: Plutonic Panda on February 17, 2024, 09:47:12 PM
Quote from: DenverBrian on February 17, 2024, 09:37:24 PM
Quote from: Plutonic Panda on February 17, 2024, 08:49:43 PM
For what? They're closing the entire stretch of the freeway just for the one interchange?
Define "entire stretch." This is from Flamingo to Russell Road.
That would be the stretch shown in the graphic above.
Title: Re: I-15/Tropicana interchange rebuild
Post by: DenverBrian on February 17, 2024, 10:44:40 PM
Quote from: Plutonic Panda on February 17, 2024, 09:47:12 PM
Quote from: DenverBrian on February 17, 2024, 09:37:24 PM
Quote from: Plutonic Panda on February 17, 2024, 08:49:43 PM
For what? They're closing the entire stretch of the freeway just for the one interchange?
Define "entire stretch." This is from Flamingo to Russell Road.
That would be the stretch shown in the graphic above.
Part of it. The "stretch" shown as closed goes all the way to I-215/CC-215. But closure articles indicate only Russell Road to Flamingo.
Title: Re: I-15/Tropicana interchange rebuild
Post by: Plutonic Panda on February 17, 2024, 11:50:47 PM
Quote from: DenverBrian on February 17, 2024, 10:44:40 PM
Quote from: Plutonic Panda on February 17, 2024, 09:47:12 PM
Quote from: DenverBrian on February 17, 2024, 09:37:24 PM
Quote from: Plutonic Panda on February 17, 2024, 08:49:43 PM
For what? They're closing the entire stretch of the freeway just for the one interchange?
Define "entire stretch." This is from Flamingo to Russell Road.
That would be the stretch shown in the graphic above.
Part of it. The "stretch" shown as closed goes all the way to I-215/CC-215. But closure articles indicate only Russell Road to Flamingo.
I see that would make more sense.
Title: Re: I-15/Tropicana interchange rebuild
Post by: roadfro on February 18, 2024, 09:56:48 PM
Quote from: DenverBrian on February 17, 2024, 10:44:40 PM
Quote from: Plutonic Panda on February 17, 2024, 09:47:12 PM
Quote from: DenverBrian on February 17, 2024, 09:37:24 PM
Quote from: Plutonic Panda on February 17, 2024, 08:49:43 PM
For what? They're closing the entire stretch of the freeway just for the one interchange?
Define "entire stretch." This is from Flamingo to Russell Road.
That would be the stretch shown in the graphic above.
Part of it. The "stretch" shown as closed goes all the way to I-215/CC-215. But closure articles indicate only Russell Road to Flamingo.

While it looks like the closure extends all the way to the 215, note that I-15 has C/D roads from Tropicana south toward the 215 and beyond, with the ramps between C/D roads and Russell to the south branching off the mainline near the 215 interchange. It appears I-15 access to Russell is maintained from the south. But to affect a closure of the I-15 mainline ends up involving closure of the 215 ramps to I-15 northbound (because there's nowhere else for that traffic to exit before Tropicana if they don't go to Russell).