LOS ANGELES — The California Department of Transportation (Caltrans) advises motorists that construction activity will close, for up to three months, one of two on-ramps to southbound Interstate 5 (Golden State Freeway) near Hasley Canyon Road in the community of Castaic in northern Los Angeles County.

Beginning Friday night, May 18, the southbound on-ramp at Sedona Way will be closed continuously until approximately mid-August while new pavement is constructed where the ramp enters the freeway.

Instead, drivers may use a second on-ramp to southbound I-5 at Hasley Canyon Road, located 0.2 mile south of the closed ramp at Sedona Way. This temporary ramp closure is part of a $171 million construction project to replace and repair concrete lanes on nearly 16 miles of I-5.

The on-ramp at Hasley Canyon Road is scheduled to generally remain open during construction though it will close intermittently on some nights. It will reopen by 6 a.m. or earlier, Mondays through Fridays. The schedule is weather-permitting and subject to change.

When both on-ramps are closed, detour signs will be posted to direct drivers south on The Old Road about two miles to the next southbound I-5 on-ramp at Rye Canyon Road.

The I-5 Roadway Rehabilitation Project is removing and replacing all of the concrete in the two right lanes (#3 and #4 lanes) and repairing damaged sections of the #1 and #2 lanes on I-5 from one-half mile south of State Route 14 (Antelope Valley Freeway) to 1.7 miles north of Lake Hughes Road. The expected completion date is in fall 2019.

The public will see more pavement projects in the future as a result of SB 1, California’s new transportation funding plan.