On Monday morning the city announced the final design for Spicewood Springs Road in Northwest Austin will include expanding the roadway to four lanes with a center median and left-turn bays.
The city’s 2016 Mobility Bond is providing $17 million to improve the roadway between Loop 360 and Mesa Drive. Currently, Spicewood Springs is only four lanes between Mesa and MoPac and narrows to two lanes.
In August, the city announced it was considering three final designs for Spicewood Springs, and of those three it chose Alternative C, which received the most public support, according to a news release.
Alternative C includes expanding the roadway to two lanes in each direction, adding a center median with left-turn bays, a shared-use path on both sides of the road for pedestrians and bicyclists, and stormwater quality and detention facilities.
According to traffic modeling data completed by the city of Austin, Alternative C would result in about the same amount of delay during peak commute hours in 2027 compared to today.
In November city staffers will complete the preliminary engineering report and move into the final design phase of the project. During design phase the city will develop construction plans and documents, evaluate utilities for possible relocation, determine drainage needs, develop a plan for road striping and signage, look at lighting needs, develop traffic control plans for construction, develop detailed cost estimates and acquire any necessary environmental permits, according to the city.
Construction on the project could begin in 2021. Learn more about the project here.
The Texas Department of Transportation is also in the midst of planning work at Spicewood Springs Road and Loop 360. The agency will be adding overpasses or underpasses at nine intersections along Capital of Texas Hwy., including at Spicewood Springs.
The state agency will host an open house Nov. 13 from 4-7 p.m. at Westover Hills Church of Christ, 8332 Mesa Drive, Austin, for residents to learn more about that project. More information is available here.