Crews will close westbound lanes on Rosecrans Avenue at the I-5, as well as the southbound I-5 Rosecrans Avenue off-ramp, from 9 p.m. Thursday, Dec. 17 to 6 a.m. Friday, Dec. 18, as crews conduct traffic signal work.
Motorists will be directed to follow the detour routes highlighted in green on the map below, when westbound Rosecrans Avenue is closed at I-5.

Work area is highlighted in red; local access will be maintained for residents and businesses off Bloomfield Avenue and Firestone Boulevard.No access to Rosecrans Avenue underneath I-5 freeway. Rosecrans Avenue I-5 on and off-ramps will also be closed while this work is completed. Motorists will be directed to follow the detour routes highlighted in green, to bypass the closure area