Major Construction Work to Begin on I-405 Sepulveda Pass Widening Project • Reconstruction of Sunset Bridge First Major Construction Milestone marking the first major construction deliverable for the I-405 Sepulveda Pass Widening Project, contractors are poised to begin preparation work for the future demolition and reconstruction of the Sunset Bridge in West Los Angeles. Starting Friday, May 7, workers will reconfigure traffic lanes and signals on the Sunset Bridge. Lane reconfiguration work will be conducted at night between 9 p.m. and (0 comments)