• 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.

Lane Closures Planned to Pave Loop 1 (MoPac) and FM 1626 near new 45SW Toll Road

(Austin, Texas) — Work to place the final layer of pavement and stripe the new SH 45SW toll road and adjacent roadways is getting underway. To accommodate the work, crews will be closing lanes during daytime hours on Loop 1 (MoPac)/SH 45 between Escarpment Boulevard and South Bay Lane. They will also be closing lanes on FM 1626 between Bliss Spillar Road and Lewis Lane.

The work involves removing a portion of the roadway surface and applying an overlay of new Permeable Friction Course (PFC) asphalt. PFC comes with many benefits, including its ability to reduce pollutants from stormwater runoff and improve ride quality and vehicle fuel efficiency. In addition, PFC can reduce water spray that will help improve driver visibility and safety.

The lane closures on Loop 1 (MoPac) and SH 45 will take place each weekday (and possibly Saturdays) from Thursday, March 28 for approximately the next three weeks, typically between the hours of 9:00 a.m. and 4:00 p.m. Within this three-week time frame, there will also be two to three nighttime lane closures for striping operations, tentatively scheduled to begin on Wednesday, April 10, from 7:00 p.m. to 7:00 a.m.

On FM 1626, lane closures will take place each weekday tentatively from Thursday, April 18 to Friday, April 26 between the hours of 9:00 a.m. and 4:00 p.m.

During April crews, will also be placing the final layer of permeable friction course pavement on the new SH 45SW toll road in preparation for its opening in May.

The lane closures should not cause any significant travel delays. Drivers are reminded to stay alert while in the construction zone and be prepared for lane closures. All closures are subject to change based on weather and other circumstances. In addition to lane closures, residents in the area may experience some noise.

Please visit the project’s website and check the tweets on @SH45SW for the most up-to-date information.

About SH 45SW
SH 45SW is an innovative environmentally sensitive 3.5-mile toll road being constructed between State Loop 1 (MoPac) and FM 1626 that includes extensive water quality protection measures and bicycle and pedestrian facilities. Construction of the project commenced in November 2016 and is expected to open in spring 2019. More information about the project can be found at


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, and the MoPac Express Lane in central Austin. The agency is also finishing construction of the 8-mile 183 South Project in east Austin, the 4-mile SH 45SW toll road between FM 1626 and MoPac, and the 290/130 Flyovers Project to connect SH 130 and 290 Toll. For more information about the Mobility Authority, visit

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