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Author Topic: Colorado  (Read 47104 times)

brad2971

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Re: Colorado
« Reply #250 on: August 31, 2021, 07:46:39 AM »

So it will become harder to expand any roads or car based infrastructure in Colorado. Yet another tool those who have nothing better to do than sit around and sue. Great.

Meh. As long as CDOT tolerates "High-performance" toll lanes on I-25, and the rest of Colorado state government tolerates Weld County producing upwards of 400K barrels of oil per day from that dreaded fracking, you'll be surprised at how malleable those pollution standards really are.
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The High Plains Traveler

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Re: Colorado
« Reply #251 on: September 05, 2021, 08:01:35 PM »

Was looking at CODOT's AADT tracker (which lists mileposts, and I really like that feature) and noticed something, is there a reason why US 24's mileage starts at 144, and CO 21 starts at 132, instead of starting at 0?

As for US-24, it used to duplex with US‐6 and I-70 all the way to Grand Junction and end at the junction with US-50. 

Once I-70 was officially completed in Colorado, US-24 was truncated to its current spot between Vail and Minturn. 

I guess it was easier to leave the mile markers be on what remains of US-24 than to renumber the highway all the way to Kansas. Likely when US-24 duplexed with US-6, it was following US-6's mile markers anyways.

Colorado DOT, frankly, is far from the only state DOT that does things like start highway mileage at a place other than zero. My native South Dakota, for example, has the entire length of SD Highway 262 and SD Highway 42 from 262 to Sioux Falls, in old US16's mileposts. Even though US16 hasn't been signed on those two roads since 1979.
CO-21 will likely be extended further south than its current terminus at Mesa Ridge Road (CO-16). It could bypass Fountain and intersect I-25 south of there, or it could even be built east of I-25 to serve future development between Fountain and Pueblo. Because of the uncertainty of where its southern terminus will ultimately be, its mileposts are based on I-25. I would bet that the mile point coordinates of I-25 and CO-21 are identical at the (currently being built) interchange near North Gate.
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Occidental Tourist

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Re: Colorado
« Reply #252 on: September 07, 2021, 05:29:41 PM »

On that last article: Classic Aspen NIMBYism?

Sounds like it was just not wanting large backups on Independence Pass, reading the article. It was an internal CDOT decision, not a result of outside pressure from any community.

It's more than that. Independence Pass is not suitable for trucks/trailers and would likely have created some potentially disastrous situations if that wasn't headed off quickly, as happened during the 2020 Glenwood Canyon closure.

https://www.summitdaily.com/news/glenwood-canyon-closure-has-truckers-trying-independence-pass-which-is-not-allowed-for-semis/

If that was the real concern then they should have just said so, and possibly set up a checkpoint to turn back trucks and trailers, not lied about the road being closed completely :P

Or see if there was a way to post independence pass as Local Traffic only on the apps.  Itís really not a through route.
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SkyPesos

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Re: Colorado
« Reply #253 on: September 07, 2021, 05:34:56 PM »

CO-21 will likely be extended further south than its current terminus at Mesa Ridge Road (CO-16). It could bypass Fountain and intersect I-25 south of there, or it could even be built east of I-25 to serve future development between Fountain and Pueblo. Because of the uncertainty of where its southern terminus will ultimately be, its mileposts are based on I-25. I would bet that the mile point coordinates of I-25 and CO-21 are identical at the (currently being built) interchange near North Gate.
Unless it it's planned to have I-25 switch to CO 21 when the latter is complete and is 100% freeway, and renumber the current I-25 alignment to something like I-425, I don't really see a reason to use I-25's mileposts on CO 21 than starting at 0.
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Elm

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Re: Colorado
« Reply #254 on: September 07, 2021, 08:29:36 PM »

CO-21 will likely be extended further south than its current terminus at Mesa Ridge Road (CO-16). It could bypass Fountain and intersect I-25 south of there, or it could even be built east of I-25 to serve future development between Fountain and Pueblo. Because of the uncertainty of where its southern terminus will ultimately be, its mileposts are based on I-25. I would bet that the mile point coordinates of I-25 and CO-21 are identical at the (currently being built) interchange near North Gate.
Unless it it's planned to have I-25 switch to CO 21 when the latter is complete and is 100% freeway, and renumber the current I-25 alignment to something like I-425, I don't really see a reason to use I-25's mileposts on CO 21 than starting at 0.
I think the theory is that, since there isn't a hard-set path for the southern extension, CDOT doesn't know where to project milepost zero, so following I-25's mileposts is a way to protect against running past zero with an extension. It could help to avoid situations like I-270 around I-76 or C-470 around I-70, where the highways started at mile 0 then were extended in the milepost-decreasing direction. Both extensions were about a mile long and could have exit numbers omitted or pushed a little, but it could be harder for Powers, which may have several exits south of Mesa Ridge Pkwy.

For a little bit of information on routes, El Paso County posted this pdf about a new study of the southern extension, which includes a map of corridor alternatives from the feasibility study on the last page.

Re: mileposts around North Gate, it looks like Powers will accumulate a few too many miles on the way to make the connection; on I-25, the new interchange is 155, braided with North Gate's 156, but, going by this design (last page), Powers should reach 157 just east of Voyager, with a little under a mile left to I-25.
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will_e_777

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Re: Colorado
« Reply #255 on: September 27, 2021, 01:38:24 AM »

It looks like all the construction at E470 & Quincy and the intersection at Gun Club & Quincy has been completed and rebuilt into a control flow intersection on Gun Club.

https://www.arapahoegov.com/QuincyGunClub

https://www.google.com/maps/@39.6372107,-104.71699,685m/data=!3m1!1e3
« Last Edit: September 27, 2021, 01:43:34 AM by will_e_777 »
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tigerwings

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Re: Colorado
« Reply #256 on: September 27, 2021, 02:51:31 PM »

Hopefully that helps traffic. The intersection was a must avoid (but rarely could) when I lived in nearby East Quincy Highlands (west of E-470).
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zzcarp

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Re: Colorado
« Reply #257 on: November 07, 2021, 03:04:11 AM »

I drove down to the Springs on Wednesday, and I found the Voyager Parkway/Future CO 21 exit on I-25 open. Here is a brief tour:

BGSs heralding the approach to Voyager Parkway and North Gate Boulevard. CDOT isn't planning on signing the new road as CO 21 any time soon as they didn't even leave room for a cut-out shield placement.


A new APL sign at North Gate with the old BGS and monotube behind it.


The exit to Voyager Parkway. I'm a bit surprised but not shocked that CDOT didn't build an auxiliary lane prior to the exit.


This is an interesting view on the ramp from SB I-25. To the left is the SB I-25 mainline, and to the right the braided ramp entrance from North Gate.


The ramp from North Gate merges here just before the ramp passes under I-25 SB. Of note is the sharpness of the curve. It can be done safely at 55 mph but not really above that.


This is the bridge passing over the opposite direction's exit to I-25 SB. The Spectrum Loop overpass is in the far background.


The entrance ramp from I-25 NB merges just prior to the Spectrum Loop overpass. This is the only bridge not part of the I-25 system interchange that was constructed during this phase.


Just beyond the overpass the lanes are striped to follow the exit to Voyager Parkway. The mainline alignment ends in dirt not far ahead.


This is the ramp terminus at Voyager Parkway. The houses in the background delineate somewhat the future CO 21 alignment.


Now heading north on Voyager Parkway getting ready to turn back towards I-25 on Future CO 21. Note that no bridge was constructed for Voyager Parkway over the future mainline.


Heading west on the entrance ramp. The mainline pavement begins in the left background. Straight ahead the poles are for a Topgolf facility.


This is where the ramp lanes "merge" with the future mainline. Note a third lane begins just ahead. In the background is the Spectrum Loop overpass and a BGS with an APL configuration.


A closer look at the APL and the overpass. Note two lanes are designated for SB I-25 versus one for NB I-25 (and one for North Gate). I suppose that the more traffic will be coming to/from the Springs to use this route than from the north.


I-25 North and South shields are posted at the gore point between the two exits. To the right in the background you can see the NB exit ramp split at the North Gate exit.


A very sun-glared picture passing under the NB I-25 lanes.


Now on the ramp heading south on the west side of I-25.


The ramp at its merge point with I-25. Note it loses one lane just ahead. There is a Colorado Springs welcome sign at the top of the hill in the background, and the second lane merges not far from there.
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So many miles and so many roads

roadfro

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Re: Colorado
« Reply #258 on: November 07, 2021, 03:13:55 PM »

I drove down to the Springs on Wednesday, and I found the Voyager Parkway/Future CO 21 exit on I-25 open. Here is a brief tour:

BGSs heralding the approach to Voyager Parkway and North Gate Boulevard. CDOT isn't planning on signing the new road as CO 21 any time soon as they didn't even leave room for a cut-out shield placement.


That makes sense to me. The new ramp really just goes to Voyager Pkwy right now and has no other connection to CO 21. Probably when CDOT builds the missing links for CO 21, they'll remove the signs to Voyager Pkwy and put in new signs for CO 21.
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Roadfro - AARoads Pacific Southwest moderator since 2010, Nevada roadgeek since 1983.

will_e_777

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Re: Colorado
« Reply #259 on: November 07, 2021, 09:56:39 PM »

is that north section going to be named Powers also?
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zzcarp

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Re: Colorado
« Reply #260 on: November 08, 2021, 01:03:47 AM »

is that north section going to be named Powers also?

Yes, the entire CO 21 corridor is known as Powers Boulevard. It likely will be signed as such fairly well as the current freeway portions of Powers are signed either with green street blades at the ramps or on the BGS with CO 21.
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So many miles and so many roads

 


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