Caltrans announced that it will close all northbound lanes of the 5 freeway in the city of Santa Clarita from 1 a.m. to 4 a.m. on Monday. The closures will impact both the truck lanes and car lanes on the northbound 5 freeway between highway 14 and Pico Canyon Road/Lyons Avenue. Beginning at 9 p.m. Sunday, up to two northbound lanes will be closed before the full closure begins at 1 a.m. Monday. One or two lanes may remain closed between 4 a.m. and 6 a.m. Monday; however, the schedule is subject to change. This early morning closure is part of Caltrans’ I-5 Roadway Rehabilitation Project in North Los Angeles County/Santa Clarita to replace pavement and concrete that is more than 50 years old and no longer adequate for existing and future traffic, according to Caltrans. The $171 million project will repair a total of 15.8 miles of freeway—from 0.5 miles south of the 5 freeway and 14 freeway interchange to 1.7 miles north of the Lake Hughes Road undercrossing—during the next two years. Construction work on the 5 freeway will continue until summer 2019 as Caltrans replaces all of the concrete in outside, No. 3 and No. 4, lanes and replaces broken concrete slabs in the inside, No. 1 and No.2, lanes. Portions of the roadway will also have asphalt pavement and concrete pavement installed, and the guardrail of the freeway will be upgraded to the current standard. No carpool or HOV (High Occupancy Vehicle) lanes are anticipated to be constructed during the Roadway Rehabilitation Project; however, they are expected to be constructed during a separate project following the Roadway Rehabilitation Project’s completion. The overall goal of the project is to extend the life of the roadway, upgrade parts of the highway that are failing, worn out or functionally obsolete, and make the drive smoother and safer for motorists. During Monday’s closures, drivers are advised to plan on delays and drive with caution in the work zone. Traffic fines are doubled in work zones, and the California Highway Patrol will be on duty, according to Caltrans. Detours for Monday’s northbound lane closures include: NORTHBOUND I-5 DETOUR: Detour onto northbound State Route 14 (Antelope Valley Freeway) and exit at Golden Valley Road. Go west on Golden Valley Road to Newhall Ranch Road. Go west on Newhall Ranch Road to the northbound I-5 on-ramp. DETOUR FROM SOUTHBOUND SR-14 TO NORTHBOUND I-5: Use southbound I-5 truck route and exit at The Old Road off-ramp. Go north on The Old Road. Go east on Pico Canyon Road/Lyons Avenue to the northbound I-5 on-ramp. DETOUR FROM SIERRA HIGHWAY TO NORTHBOUND I-5: Go west on Sierra Highway, then go north on The Old Road. Go east on Pico Canyon Road/Lyons Avenue to the northbound I-5 on-ramp.