MoPac Express Lane

Express lanes are special buffer-separated lanes that use variable tolls to keep traffic moving even when the adjacent lanes are congested. This is accomplished by raising the toll when traffic is heavy and lowering the toll when traffic is light. The lanes provide a non-tolled, congestion-free route for public transit buses and registered vanpools, but also allow individual drivers to pay to use the lane capacity that remains. The Express Lane is located in the middle of the MoPac corridor, separated from the existing lanes by a four- to five-foot-wide striped buffer zone with flexible plastic sticks called delineators. Drivers are able to access the MoPac Express Lane at Cesar Chavez Street, at Far West Boulevard and Anderson Lane, or at Parmer Lane.

Drivers should not attempt to cross the delineators, as they will cause vehicle damage. Trucks and trailers are prohibited from the Express Lane.

Learn more information about the project’s bicycle and pedestrian facilities.

Additional Information

MoPac Express Lane Fact Sheet

The History of MoPac

For real-time updates on incident management in the corridor, check us out on Twitter.

Use Your Electronic Tag or Drive on Through, We’ll Bill You

The MoPac Express Lane is completely automated with no need to stop or even slow down at toll booths. The choice is yours – utilize the all-electronic, or cashless, tolling method of payment through an electronic tag account; or if you don’t have an electronic tag just keep moving, and we’ll bill you through the Pay By Mail program.

In Texas, there are multiple transportation agencies that are authorized to operate toll roads, issue their own electronic tag, and do their own billing. In the Austin area, there are two: the Texas Department of Transportation (TxDOT) and the Central Texas Regional Mobility Authority (Mobility Authority).

Mobility Authority customers can pay their tolls with a TollTag, EZ TAG, Fuego Tag, K-TAG, Pikepass, SunPass, E-470’s ExpressToll or Bancpass (the Mobility Authority also accepts TxTAG, which is now operated by HCTRA) and get a 33% discount, or they can choose to Pay By Mail. Pay By Mail customers are billed using a picture of their license plate, and are charged a $1.00 statement fee per bill. Vehicle registration information must be up to date in order for the bill to be sent to the correct address. Pay By Mail is available on all toll roads in Central Texas, although you may receive separate bills depending on which agency operates the road you traveled on.

To learn about paying your tolls, see the download available below.

Paying My Mobility Authority Toll

Traffic Incident & Management Center

The Traffic Incident & Management (TIM) Center is the heart of the Mobility Authority’s intelligent transportation system. The TIM Center affords us the ability to monitor our facilities as well as coordinate resources for incident management and maintenance, enabling efficient responses to accidents and other interruptions to traffic flow.

Electronic Message Boards Display Toll Price

72 Hour Delay

To ensure accurate charges, the payment processing for MoPac toll transactions are delayed so that the trips can be billed accurately. Any necessary price adjustments are made during this 72-hour delay period to ensure that drivers are not overcharged when they receive their bill. In addition, cameras capture photos of the Express Lane pricing signs with time and date stamps at every transaction.