183A Added Capacity

VIRTUAL OPEN HOUSE JULY 31 - SEPT. 1, 2024
Proposal for the possible addition of a fourth lane in the median of 183A Toll
between FM 620 and Hero Way.

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Welcome to the 183A Added Capacity Environmental Study Virtual Open House

Due to the unprecedented growth of Cedar Park and Leander, and growing number of drivers on the 183A Toll Road, the Mobility Authority is conducting an environmental study for the possible addition of a fourth lane in the center median of 183A Toll in both directions between FM 620 and Hero Way. An additional lane would be a proactive measure allowing for the 183A Toll Road to accommodate future traffic volumes and reduce anticipated traffic congestion for years to come.

Get Involved

Starting Wednesday, July 31, 2024 until Sunday, September 1, 2024, we invite you to view the 183A Added Capacity Project exhibits and share your feedback.

Please share your input on:

Project goals and objectives
Mobility, connectivity, and safety concerns on 183A from RM 620/ SH 45 to Hero Way
Environmental Constraints
Anything else you’d like to share

View the Virtual Open House Exhibits

To explore the 183A Added Capacity Project’s environmental study, click on each board below. You can download all materials for your convenience and reference. To share your thoughts or feedback, please refer to the “How to Submit a Comment” section.

Image of 183A Toll, where 183A Added Capacity Project would potentially be.

View all exhibits or view each individually below.

Download

How to Submit a Comment

Comments must be received or postmarked by 11:59pm, Sunday, September 1, 2024 to be included in the official record of this Virtual Open House. Official comments will be received and accepted by the project team in the following ways:

Email

Send your comment by email [email protected].

Mail

Central Texas Regional Mobility Authority

c/o 183A Added Capacity

3300 N. IH-35, Suite 300

Austin, TX 78705

Online

Fill out the digital comment form below to submit a comment for the official record of this Virtual Open House.

183A Added Capacity - Digital Comment Form

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Newsletter

Frequently Asked Questions

Project Information

What is the 183A Added Capacity Project?

The 183A Added Capacity Project is an environmental study for the possible addition of a fourth lane in each direction in the center median of the existing 183A Toll between FM 620/SH 45 and Hero Way.

What problem are you trying to address?

Development surrounding the corridor has led to increased use of the 183A Toll corridor. As a proactive measure, the Mobility Authority is seeking environmental clearance to potentially add a fourth lane to 183A Toll between FM 620 and Hero Way. This would allow the agency to add capacity to the roadway as needed to reduce travel delays to users in the future.

What are the study boundaries?

The study area is a 9-mile segment of 183A Toll from RM 620 to Hero Way.

How can I stay informed about the project?

We are committed to collaborative and transparent public involvement. Corridor residents, businesses, roadway users, local agencies, the general public, and other interested parties can obtain information about the project on our website, by signing up for electronic newsletters, or calling 512-996-9778.

Environmental Study

What environmental resources are studied?

The 183A Added Capacity environmental study includes, but is not limited to, the review and analysis of:

Natural Resources (State and Federal protected species, water resources)
Cultural Resources
Hazardous Materials
Community Impacts
Traffic Noise Analysis
Air Quality

How do you plan to address the possibility of additional noise?

The environmental studies performed for the project will include a review of projected traffic noise that could result from the proposed improvements. The Mobility Authority will prepare a traffic noise analysis following the required federal process. The analysis will also evaluate noise abatement measures for the adjacent residents and businesses that might be impacted by traffic noise.

Will the project affect water quality in nearby waterways?

The Mobility Authority is committed to mitigating impacts of construction to the surrounding environment, should the project move forward. Best Management Practices (BMPs) and Voluntary Control Measures (VCMs) will be incorporated into the design and installed prior to construction in efforts to maintain water quality, remaining in compliance with the Texas Commission on Environmental Quality’s Edwards Aquifer Protection Program.

What measures are in place to protect and preserve natural habitats during and after construction?

The project will remain in compliance with the Endangered Species Act (ESA). Analysis of federally-listed threatened and endangered species and consultation with the U.S. Fish and Wildlife Service will be performed.

Construction

When might construction begin?

If use of the corridor continues to increase as anticipated, signifying the need for an additional lane, the start of construction would then be dependent on the results of the environmental study, Mobility Authority Board approval, and coordination with the 183A Frontage Road Project (managed by TxDOT). It is possible construction could begin as early as the second half of 2026.

Stay Connected

Please note: The form below is NOT the official comment form for the 183A Added Capacity Virtual Open House. Comments that are submitted through this form will not be included in the official record of the Virtual Open House. If you are attempting to submit an official comment to be included in the Virtual Open House, please use the form above or visit MobilityAuthority.com/183a-ac/comment.