• 07/16/24: We are aware of the smishing scams regarding outstanding toll charges. The Mobility Authority will never ask for personal information via text and only send texts with account updates and to those who have opted in to QR Code Digital Billing and Electronic Invoices. Please do not click on links or respond to any suspicious messages. To get the most up to date information about your Mobility Authority account, visit or call us at (833) 762-8655. The Mobility Authority works diligently to protect our customers’ data.

183 South Project: Northbound US 183 Closing Nightly at SH 71


Northbound US 183 Closing Nightly at SH 71

(Austin, Texas) – Beginning as soon as Sunday evening, August 25, the Central Texas Regional Mobility Authority (Mobility Authority) will be implementing nightly closures of the northbound lanes of US 183 at SH 71, the northbound US 183 ramp to westbound SH 71 and the westbound SH 71 ramp to northbound US 183.

The overnight closures, which could continue for several months, are necessary so construction crews can move a large stockpile of dirt located at the SH 71 interchange up US 183 to an area near Patton Ave. The dirt will be used to construct a new bridge for the 183 Toll Road over Patton Avenue. Closures will take place Sunday through Thursday, from 7 p.m. to 6 a.m., and Friday and Saturday, from 7 p.m. to 10 a.m. Travel delays are likely, especially when the closures get underway each night as well as when they are being wrapped up each morning.

Drivers on northbound US 183 approaching SH 71 from the south that want to continue north will exit to eastbound SH 71, exit and take the U-turn at Spirit of Texas Drive, rejoin westbound SH 71 and keep right to access northbound US 183. Those on northbound US 183 who wish to access westbound SH 71 will also exit to eastbound SH 71, take the U-turn at Spirit of Texas Drive and merge left to continue on westbound SH 71. Travelers heading east on SH 71 toward Austin-Bergstrom International Airport, who wish to go north on US 183, will be detoured past the exit for northbound US 183, and will instead take the exit for Spirit of Texas Drive take the U-turn at Spirit of Texas Drive, re-enter SH 71 heading west and keep right to access northbound US 183.


About 183 South:
The Central Texas Regional Mobility Authority is building a new tolled expressway with three lanes in each direction on an 8-mile section of US 183 between US 290 and SH 71. In addition, the Mobility Authority is reconstructing and improving the non-tolled US 183 general purpose lanes and adding $25 million worth of pedestrian and bicyclist facilities. The project will open in phases between 2019 and 2020, offering greater mobility for all users of the corridor. For more information, visit

About the Mobility Authority:
The Central Texas Regional Mobility Authority is a local, independent government agency created in 2002 to improve the regional transportation system in Travis and Williamson Counties. The Mobility Authority implements innovative and sustainable transportation options to enhance quality of life and economic vitality in Central Texas. The Mobility Authority operates 183A Toll in Williamson County, 290 Toll and the 71 Toll Lane in east Austin, the MoPac Express Lane in central Austin, and the 45SW Toll Road in southwest Travis County. The agency is also finishing construction of the 183 South Project and the 290/130 Flyovers Project. For more information about the Mobility Authority, visit

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