TxDOT is planning to expand RM 620 and 5 other transportation projects to know in Northwest Austin for September

TxDOT is analyzing options to improve traffic flow and safety on RM 620.

TxDOT is analyzing options to improve traffic flow and safety on RM 620.

Updated Sept. 25

Learn more about the plans that the Texas Department of Transportation has from RM 620 between the Mansfield Dam and US 183.


FEATURED PROJECT









1. RM 620 expansion


The Texas Department of Transportation is still weighing options to improve safety and traffic flow on RM 620 between the Mansfield Dam and US 183. Options include expanding to up to 10 lanes with elevated lanes. The department released its feasibility study in February 2017 and has been refining the study to focus on projects north of the dam. The agency will host an open house in early 2020 and wrap up the refinement in early 2020 and then begin the environmental process.
Timeline: TBD on construction
Cost: TBD
Funding source: TBD





LATEST UPDATES









2. RM 620 and Anderson Mill Road



  1. TxDOT is also in the midst of designing a grade-separated intersection with either an overpass at RM 620 at Anderson Mill Road. The mid-term project would help with traffic flow on RM 620. TxDOT is looking at long-term options, such as adding more lanes, to improve travel on the roadway.


Timeline: TBD
Cost: estimated at $25 million
Funding source: TxDOT






3. Improving US 183


2. TxDOT hosted an open house Sept. 19 for residents to learn more about proposed improvements to US 183. These proposals include adding auxiliary, or merge, lanes between Metric Boulevard and Cameron Road. Other improvements would include adding a main lane on the southbound side and closing the entrance ramp near Georgian Drive.

Timeline: construction to begin in spring 2020
Cost: estimated at $3 million
Funding source: TxDOT






4. Parmer Lane diverging diamond


3. Construction began in July at Parmer Lane and I-35 to add a diverging diamond interchange. Vehicles will cross over to the opposite side of the road to facilitate more efficient turning movements. Crews will add a southbound I-35 bypass lane at Parmer, and improvements at Parmer and North Lamar Boulevard are also planned. Utility work is ongoing.

Timeline: July 2019-mid-2021
Cost: $32.5 million
Funding source: TxDOT





ONGOING PROJECTS









5. Improving Anderson Mill Road



  1. In September, city staffers finished the design on improvements to Anderson Mill Road between Spicewood Parkway and US 183. Improvements include adding a center turn lane and medians, extending the right-turn lane to US 183 and a new lane configuration at Olson Drive.


Timeline: 2020-21 (construction)






6. I-35 work


2. The I-35 project includes adding three flyovers between I-35 and US 183 as well as fixing the existing northbound I-35 to northbound US 183 flyover. TxDOT reopened the St. Johns Avenue bridge over I-35 in August. In late September, crews set the steel beams to support the St. Johns Avenue turnaround that will go from northbound I-35 to southbound I-35. The $124 million project is being funded by TxDOT.

Timeline: January 2018-mid-2021


By Amy Denney

Managing Editor, Austin metro

Amy has worked for Community Impact Newspaper since September 2010, serving as reporter and later senior editor for the Northwest Austin edition as well as covering transportation in the Austin metro. She is now managing editor for the 10 publications in the Central Texas area from Georgetown to New Braunfels.



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