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Expressway News

March 2023


183A Phase III Update: We’re Halfway There

Progress on the 183A Phase III Project continues to move at a rapid pace and we’re happy to report that we’re roughly halfway through construction.

In late February, the project implemented a successful traffic shift along SH 29 at the intersection of US 183 to accommodate excavation and construction of a new bridge. This effort requires significant earthwork with more than 230,000 cubic yards of dirt that will be removed and reused elsewhere on the project. When complete, the new bridge will carry SH 29 vehicular traffic and pedestrian crossings, all of which will remain at grade, over the new 183A toll lanes.

Construction north of SH 29 has also picked up. Project improvements at this location include a new alignment of US 183, reconstruction of a portion of CR 213/CR 258, and dedicated right turn lanes from US 183 onto CR 213/CR 258.

Construction on the project is not a simple as it may appear from the roadway. Many large structures involve smaller components. For example, before concrete can be poured, rebar must be tied down to support and strengthen the eventual structure. The project includes 17 bridges and several retaining walls to carry the new 183A toll lanes over and under existing intersections. It’s a great deal of work, but our field crews have made significant progress in the two years since construction began.

Interested in learning more? Additional information and the latest construction updates can be found on the project website, 183A.com.

Thank you for your patience and support during construction.

A TREEmendous Project

If you drive MoPac regularly, you might have noticed activity along the northbound right-of-way at the Northland Drive exit. For the last few months, the Mobility Authority worked on a special landscaping project adjacent to the Austin Memorial Park Cemetery. The project included the installation of an irrigation system and the planting of trees along northbound Mopac between RM 2222 and Hancock Drive.

Design for this project began in October 2021 following the execution of a memorandum of agreement between the Mobility Authority, TxDOT, the State Historic Preservation Office, and the City of Austin. The contractor, Tight Line Construction, began work in early February and progressed quickly over the next several weeks. Now, 55 Texas Mountain Laurels line the right-of-way and will help minimize the visual and noise impacts to the Austin Memorial Park Cemetery from MoPac as they grow.

Other questions or concerns about your toll bill?
Contact us at 833-762-8655 or visit our
website. We're here to help!
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