Barricades were placed Friday on a 1/2-mile stretch of southbound Pacific Coast Highway, as a summer-long wastewater diversion project begins.
The key beach road is constricted so crews can bury 3,100 feet of new pipe at the foot of Pacific Palisades and Santa Monica.
One of the three southbound lanes will be closed for the next two months, Los Angeles officials said. And just one southbound lane will be open starting at 9 p.m. weeknights, as construction equipment will be on the road.
Northbound traffic will be unaffected. A temporary bridge and bike lane detour has been set up at Santa Monica Canyon for foot and cycle traffic.
The new sewer line, 3-feet in diameter, will divert dry weather runoff from several canyons to the Hyperion Sewage Treatment Plant just south of Los Angeles International Airport. The project is being paid for with a $500 million bond issue approved by Los Angeles voters to reduce pollution in Santa Monica Bay.
