Marshall Ford to McNeil Transmission Line Storm Hardening Project
The project will increase the reliability and safety of the structures and conductor by ensuring the transmission lines meet or exceed current National Electrical Safety Code and LCRA TSC design standards.
The lines being worked on go from near Mansfield Dam off Ranch Road 620 eastward crossing Highway 183 and Mopac in north Austin to the Walnut Creek Metropolitan Park area. Work will also occur on a section of the lines just west of Spicewood Springs Road, traveling adjacent to the road northward about 1.3 miles to Old Lampasas Trail.
Latest Update – March 2024
Portions of Mopac near The Domain in north Austin are scheduled to be shut down in both directions for brief periods between 3 a.m. and 5 a.m. Monday, March 18, as crews perform work on the LCRA TSC transmission line in the area. Traffic will be stopped for no more than 15 minutes at a time. The work will not go beyond the two-hour window and will likely not last entire two hours.
Previous Project Updates
February 2024
Crews will use nighttime lighting and large equipment and vehicles. Traffic controls will be in place as needed. Weather conditions or other factors can cause delays in the work schedule in some cases.
November 2023
Construction work is continuing on the western portion of the project. Structure enhancements and conductor replacement have occurred on a portion of the transmission line that starts east of Mansfield dam and ends west of RR 2222. Work is taking place in the area around RR 2222 eastward to Spicewood Springs Road over the next several months, including around Vandergrift High School. Crews will work on the eastern portion of the project, in north Austin, as weather conditions allow over the coming months. The eastern part of the project includes areas around Walnut Creek Metropolitan Park, The Domain shopping center and Highway 183.
October 2023
Overnight work on the project is scheduled Tuesday, Sept. 26-Monday, Oct. 16. This work will occur on a portion of the transmission line that starts east of Mansfield dam and ends west of FM 2222. This segment of transmission line runs alongside RR 620 at various points, and it crosses RR 620 at Steiner Ranch Boulevard.
Crews will use nighttime lighting and large equipment and vehicles. There will be activity near some residential areas, and residents may notice additional traffic and noise. The overnight work will occur from 7 p.m. to 5:30 a.m. Traffic controls will be in place as needed. Weather conditions or other factors can cause delays in the work schedule in some cases.
September 2023
A helicopter is scheduled to be used for work on this project on Thursday, Sept. 21. The helicopter work will occur near Mansfield Dam, off Ranch Road 620 North. Weather conditions or other factors can delay work.
July 2023
Program Timeline
| Summer/Fall 2023 |
|---|
| Construction activity on western portion of project from around Marshall Ford Substation, near Mansfield Dam, eastward to near Spicewood Springs Road. Work will include site preparation and foundation installation. |
| Late 2023/first half of 2024 |
| Construction activity, including site preparation and foundation installation, on eastern portion of project, from around Spicewood Springs Road eastward to the McNeil substation, which is west of North Lamar Boulevard in Austin. Erecting structures and stringing transmission line expected to begin in September 2023. |
| Mid-2024 |
| Transmission line construction completion expected in May. |
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