Work will begin late Monday night, July 21, on major modifications to on and off ramps at the the Bernal Avenue interchange with I-680 to relieve rush hour backups.
Traffic engineer Ed Evangelista said the ramps will occasionally closed to traffic between the hours of 10 p.m. and 5 a.m. for nighttime construction work. Ramp closure dates and times will be posted in advance at the ramp entrances.
The approximate completion date for the project is February 2015.
Evangelista said the project will improve interchange operation and safety. At the I-680 northbound on-ramp intersection, one westbound through lane will be converted to a shared through/right turn lane to the northbound on-ramp to reduce vehicle queue and congestion.
At the I-680 southbound on-ramp, one westbound Bernal Avenue through lane will be converted to a second westbound left turn lane to reduce vehicle queue and congestion.
Also, the free running right turn lane from the I-680 southbound off-ramp to eastbound Bernal Avenue will be converted to a yield control to improve pedestrian and bicycle safety. A sidewalk will also be constructed along the south side of Bernal Avenue between W. Lagoon Road and the northbound I-680 intersection.