SACRAMENTO, Calif. -- Starting Feb. 6, construction work hours and the associated lane closure near State Route 190 post mile 23.39 will be expanded to 7 a.m. to 5 p.m., Monday through Saturday. The expanded hours and inclusion of Saturdays are necessary to meet the U.S. Army Corps of Engineers Sacramento District’s schedule for improving the rock slope protection of bridge abutments along SR 190 at Lake Success, located about five miles east of Porterville.
This change marks the start of the second of three phases of work that will continue through March and is part of USACE’s Tule River Spillway Enlargement Project at Success Lake that will raise the spillway and the rock slope protection by 10 feet.
The schedule for the remaining rock slope protection improvements:
- Phase 2: From Feb. 6 to March 17, USACE construction crews will armor the bridge abutments by installing rip rap stones to accommodate additional reservoir storage.
- Phase 3: Installation of new SCE overhead power poles placed above the new high-water line from March 20-31 will conclude the two-month-long effort.
Drivers should continue to expect delays until the end of March, as traffic control measures will be implemented to allow traffic to travel in both directions across the bridge. Any updates to the schedule or traffic control measures will be shared in advance and posted to the USACE Sacramento District website at https://www.spk.usace.army.mil/Media/News-Releases/.
During Phase 1, which began on Jan. 23, Southern California Edison removed overhead power lines and dug new pole holes along the slope.
The purpose of the Tule River Spillway Enlargement Project is to lower the flood risk for downstream communities by increasing the capacity of Success Lake by 28,000 acre-feet, which will also support the lake’s additional purposes of water storage and recreation.
Completion of the Tule River Spillway Enlargement Project is scheduled for September 2023. For more information about the project, visit https://go.usa.gov/xfQEd.
Release no. 23-005