Included in the Feb. 26 briefing were updates on two expansions each on US 183 and Mopac.
US 183 North
The US 183 North project will add a general-purpose lane, two toll lanes and a sidewalk on both sides of the roadway, and Mobility Authority information states it is now in the contract execution stage.
The $580 million project extends from SH 45 at the northern end to MoPac at the southern end, covering 9 miles.
Construction is expected to begin some time in 2021, last through 2024 and be complete by 2025.
Next steps for the US 183 North project include evaluating alternative technical concepts, receiving final detailed proposals, selecting a design and build contractor, and negotiating and executing a contract.
Justin Word, director of engineering for the Mobility Authority, told the board a recommendation to award a contract to a builder will come in May.
Timeline: construction to begin in 2021 and complete in 2025
Cost: $580 million
Funding sources: TxDOT, federal funding through TIFIA loan, revenue bonds
Toll 183A Phase III
The Toll 183A Phase III project extends from SH 29 in Liberty Hill to Hero Way in Leander, and information from the Mobility Authority states it is now in the final design stage.
The $260 million widening will add a toll lane on both the northbound and southbound sides. Construction is expected to begin this year and be complete in 2024.
According to the Mobility Authority, the next steps for the Toll 183A Phase III project include completion of the final design, finalizing acquisition of the right of way, relocation of the utilities, awarding of a construction contract and finalization of financing.
Word said a contractor for the project should come to the Mobility Authority's September meeting.
Timeline: construction to begin in 2020 and conclude in 2024
Cost: $260 million
Funding sources: federal funding through TIFIA loan, revenue bonds
MoPac South
The MoPac South project will upgrade about 8 miles of the thoroughfare between Cesar Chavez Street on the north end and Slaughter Lane on the southern end.
It is now in the environmental assessment stage, and staff members are working on a new estimate for the project’s total cost. A public hearing on the project is being planned for May, and Mobility Authority staff will update the public on a specific time and location for that event.
"I want us to pay attention to the intersection at Bee Caves Road as we approach this project," Mobility Authority board Director David Armbrust said. "I feel strongly about that and I think a lot of other people do too."
Timeline: TBD
Cost: TBD
Funding Source: TBD
Barton Skyway
The project will add auxiliary merge lanes on 1.5-mile stretch of MoPac South between Barton Skyway and Capital of Texas Highway with a stated goal of relieving congestion at the southbound Winsted Lane/Enfield Road on ramp.
It is now in the environmental and design procurement phase, with agreements with the Texas Department of Transportation, environmental clearance and construction letting to come this year.
Construction for the $15 million project is anticipated to begin and end in 2021.
Information from the Mobility Authority states a designer for the project should be selected in March. Advertising for and awarding of a construction contract should begin toward the end of 2020, and it should be open to traffic by the end of 2021.
Timeline: construction to begin and end in 2021
Cost: $15 million
Funding source: CTRMA
