183A Added Capacity

[longhorn]

https://www.mobilityauthority.com/wp-content/uploads/2024/07/Web_183AAC_ExhibitBoards-compressed.pdf

Toll authority adding a fourth lane on the inside of freeway.

[Echostatic]

Pretty simple affair, a straight shot +1 lane down the median. Frustrating that a project this simple requires years of community engagement and environmental studies, but it's good to see CTRMA being proactive. They stay on top of things in the metro.

[MaxConcrete]

Also for SH US 183, TxDOT has scheduled public meetings to launch the environmental process to upgrade the section in north Williamson county to a freeway, and the section in Burnet county to 4-lane divided.

Meeting notice

[ski-man]

Also for SH 183, TxDOT has scheduled public meetings to launch the environmental process to upgrade the section in north Williamson county to a freeway, and the section in Burnet county to 4-lane divided.

Meeting notice

It is US 183

[The Ghostbuster]

I know that the TX 183A Toll Road extension will soon open to end just north of the CR 213/CR 258 intersection (with the last interchange being at TX 29). Are there any plans to further extend the TX 183A Toll Road further north from there?

[Bobby5280]

It doesn't look like there is anything official on the books (aka a "US-183A Phase 4" project). Although their "Phase III" web site states traffic volumes in that area North of Austin will increase 183 percent by 2042. That sounds like a good justification for TX DOT to start acquiring several more miles of ROW.

Right now growth in the Austin metro (especially in Austin city limits) is hitting the pause button due to the housing price bubble appearing to have popped. Once the economy goes through a big correction it's likely growth in Austin will resume.

While growth inside Austin itself has stalled (temporarily) towns near Austin are still growing. I-14 gets built out to the West and more is done to upgrade US-281 it's easy to imagine Lampasas booming. It could happen anyway.

[Great Lakes Roads]

BUMP

An update on the 183A extension

EDIT: Opening on April 9th (tomorrow)

[bwana39]

I know that the TX 183A Toll Road extension will soon open to end just north of the CR 213/CR 258 intersection (with the last interchange being at TX 29). Are there any plans to further extend the TX 183A Toll Road further north from there?

I have a Stylebook issue. Calling it TX-183A might somehow imply it is part of SH 183. SOmeone Actually used the term SH-183 (without even the A after it.)  It is correctly annotated as 183A Toll  The FHWA notes it as US-183A.
Look at it here. https://www.fhwa.dot.gov/ipd/project_profiles/tx_us183a_phase_III.aspx

Someone wants to make it belong to the state when it doesn't. It is owned and operated by Central Texas Regional Mobility Authority an independent governmental agency based in Austin.  It relates to the state like a city, county, or fire protection district. While they work WITH TxDOT, they are NOT TxDOT.

ANd yes, while the  the regional mobility authorities are confusing, they work well inside of Texas.

[The Ghostbuster]

Maybe it should have been designated US 183A. After all, it parallels US 183. Any TX 183A should have connected with existing TX 183 in the Dallas-Fort Worth area.

[Chris]

I assume that 183A is the route number for the (tolled) main lanes, while US 183 runs across the frontage roads?

Similar to US 290:

[Echostatic]

Yes, "Toll 183A" is the name of the mainlanes and US 183 is the frontage road. Same goes for "Toll 183" vs. US 183 on the segment between SH 71 and US 290. It's not really a route number at all, just a name.

[Stephane Dumas]

Speaking of TX-183A, GSV posted last February some shots of TX-183A construction at the junction of TX-29.
https://maps.app.goo.gl/xWHJthATCnrtjs589

[bwana39]

Speaking of TX-183A, GSV posted last February some shots of TX-183A construction at the junction of TX-29.
https://maps.app.goo.gl/xWHJthATCnrtjs589

WE weren't speaking of TX-183A it doesn't exist. We were talking about Toll 183A which is the mainlane tollway to the frontage road which is US-183A.

If you have to assign a "regular" (outside of Texas) name, call it US-183A

[wxfree]

Originally, the toll road was planned to be built by TxDOT and be designated as US 183A.  The planned designation was dropped when the project was transferred to the mobility authority.  183A is the name of the road, like "Dallas North Tollway."  It's written mostly with numbers, but it's still a name and not a numerical designation.

I think that the official name is "183A Turnpike."  I found that hidden in some documents that are public but get no interest.  "183A Toll Road" is more commonly used.

US 183 does not follow the frontage road, except south of Avery Ranch Blvd.  Most of the route through the area is along a parallel road to the west of the turnpike.  Late last year, the commission designated US 183 along frontage roads are far north as FM 1431, and then west to the existing road.  When those frontage roads are built, US 183 will be on the frontage road for a little less than half the length of the turnpike.  The existing route south of there will become BU 183Q (to add more alphanumeric fun).

https://www.txdot.gov/content/dam/docs/commission/2024/1031/11e2.pdf

[Plutonic Panda]

The 183 N toll lanes are scheduled to open in early 2026:

https://www.kxan.com/traffic/traffic-projects/new-183-north-project-toll-lanes-will-open-soon/?fbclid=IwdGRleAOxSbxleHRuA2FlbQIxMQBzcnRjBmFwcF9pZAo2NjI4NTY4Mzc5AAEerg0k_HMP7d3eJPCXrbAeStL8qdum17L1Zy_BBD9R5PhzPBINUzOMUhLY6ws_aem_dBqF1qAvQVFv8YK8DvLBaA

[djlynch]

I came down 183 on my way back from Thanksgiving travel, and it certainly seemed like the main lanes were getting close to complete in the northern 3/4 of the project, but I didn't realize they were that close to complete that far south. The sheer scale of the new road is kind of stunning. There were four through lanes open, and it was basically only half of the available pavement, but two (I assume) toll lanes and shoulders, and a buffer between them will pretty quickly use up the rest.

[ElishaGOtis]

Originally, the toll road was planned to be built by TxDOT and be designated as US 183A.  The planned designation was dropped when the project was transferred to the mobility authority.  183A is the name of the road, like "Dallas North Tollway."  It's written mostly with numbers, but it's still a name and not a numerical designation.

I think that the official name is "183A Turnpike."  I found that hidden in some documents that are public but get no interest.  "183A Toll Road" is more commonly used.

US 183 does not follow the frontage road, except south of Avery Ranch Blvd.  Most of the route through the area is along a parallel road to the west of the turnpike.  Late last year, the commission designated US 183 along frontage roads are far north as FM 1431, and then west to the existing road.  When those frontage roads are built, US 183 will be on the frontage road for a little less than half the length of the turnpike.  The existing route south of there will become BU 183Q (to add more alphanumeric fun).

https://www.txdot.gov/content/dam/docs/commission/2024/1031/11e2.pdf

Apparently its designation is TL-183A, similar to SH or SL designations. Forgot where I saw this though...

[wxfree]

The only thing I can think of with a TL designation is the control sections.  On the statewide planning map, if you turn on the control section overlay and zoom in far enough, you'll see that every public road is assigned a control section.  City, county, and other non-state roads (such as national parks) have a designation of two letters followed by some numbers.  Toll roads that are not state highways have TL as the letters.  The Dallas North Tollway is TL 00-05.  They don't seem to mind getting cute with the designations.  The 290 toll road is TL 02-90 and the 183A toll road is TL 01-83.  If you go to the highway designation files, you'll see that there is no TL prefix, since those file apply only to state highways (of all types).

My description of off-system control sections is based on my observations on the map, not on any official documentation.  I can't say that my description is complete or accurate and can't say you won't find a different system somewhere on the map.  I haven't seen any evidence that the system is other than how I describe it.

[ElishaGOtis]

The only thing I can think of with a TL designation is the control sections.  On the statewide planning map, if you turn on the control section overlay and zoom in far enough, you'll see that every public road is assigned a control section.  City, county, and other non-state roads (such as national parks) have a designation of two letters followed by some numbers.  Toll roads that are not state highways have TL as the letters.  The Dallas North Tollway is TL 00-05.  They don't seem to mind getting cute with the designations.  The 290 toll road is TL 02-90 and the 183A toll road is TL 01-83.  If you go to the highway designation files, you'll see that there is no TL prefix, since those file apply only to state highways (of all types).

My description of off-system control sections is based on my observations on the map, not on any official documentation.  I can't say that my description is complete or accurate and can't say you won't find a different system somewhere on the map.  I haven't seen any evidence that the system is other than how I describe it.

Just going off of this map, which is similar to what you described but actually specifies the route numbers. https://gis-txdot.opendata.arcgis.com/datasets/008906d83772435bb757cb76c9644e5d_0/explore?location=30.610919%2C-97.859775%2C13.61

Also shows the TL prefixes you described for off-system toll roads, like Dallas North Tollway as TL-5, Westpark Tollway as TL-32, PGBT as TL-161, Chisholm Trail Pkwy as TL-38, Hardy Toll Road as TL-15, Ft Bend Pkwy as TL-11, and HCTRA Sam Houston Tollway/Pkwy as TL-8 (in addition to SL-8).

Also not official

[wxfree]

The only thing I can think of with a TL designation is the control sections.  On the statewide planning map, if you turn on the control section overlay and zoom in far enough, you'll see that every public road is assigned a control section.  City, county, and other non-state roads (such as national parks) have a designation of two letters followed by some numbers.  Toll roads that are not state highways have TL as the letters.  The Dallas North Tollway is TL 00-05.  They don't seem to mind getting cute with the designations.  The 290 toll road is TL 02-90 and the 183A toll road is TL 01-83.  If you go to the highway designation files, you'll see that there is no TL prefix, since those file apply only to state highways (of all types).

My description of off-system control sections is based on my observations on the map, not on any official documentation.  I can't say that my description is complete or accurate and can't say you won't find a different system somewhere on the map.  I haven't seen any evidence that the system is other than how I describe it.

Just going off of this map, which is similar to what you described but actually specifies the route numbers. https://gis-txdot.opendata.arcgis.com/datasets/008906d83772435bb757cb76c9644e5d_0/explore?location=30.610919%2C-97.859775%2C13.61

Also shows the TL prefixes you described for off-system toll roads, like Dallas North Tollway as TL-5, Westpark Tollway as TL-32, PGBT as TL-161, Chisholm Trail Pkwy as TL-38, Hardy Toll Road as TL-15, Ft Bend Pkwy as TL-11, and HCTRA Sam Houston Tollway/Pkwy as TL-8 (in addition to SL-8).

Also not official

I've seen that map, but I didn't look at it extensively.  I think I was looking for something and didn't find it there.  It shows RTE_NM, which I assume means route number.  It appears TxDOT numbers every public road in the state.  The county roads appear to be numbered based on the control sections.  For example, South County Road in Brewster County is 022AA0003.  The number for Brewster County is 22.  The counties are numbered based (mostly) on the alphabetical order.  The statewide planning map shows the control section as AA00-03.  The combination of county number and road control section make up the designation.  I have the 1984 and 1998 books of county maps, and they show an index of county names and numbers, and each map has the name and number printed on it.  A weird exception I've wondered about for decades is Kenedy County, which is 66, even though it's much later than that alphabetically.  You can find the county list with numbers, and links to maps from the mid-90s, here:
https://maps.lib.utexas.edu/maps/txdot/browse.html

City streets are different.  They appear to be based on city.  Alpine is mostly 100, and Dallas has a lot of 106.  Both have 26 thrown in randomly.  The last four digits have no relation to the control section numbers.  I see no pattern.

Off-system toll roads are marked TL and given numbers that correspond to their control section numbers.  An exception is 183A, which is TL0183A, with the A on the end.  Toll 49, built along the route planned for Loop 49, has control section number TL00-49 and state designation TL0049.