A project to improve six miles of Highway 101 from San Miguel to Camp Roberts will continue with the reconstruction of the northbound bridge over San Marcos Creek and pavement rehabilitation work near Camp Roberts.
Drivers traveling northbound will continue to detour onto the number one left southbound lane near the San Marcos Overcrossing. This detour is expected to last until the end of September. In addition, motorists will continue to encounter lane closures on northbound and southbound 101 near Camp Roberts just north of San Miguel.
The northbound 101 on and off-ramp at Camp Roberts has re-opened. The southbound on-ramp to 101 at South Mission Street remains closed. Motorists may detour via 10th Street, south to Cemetery Road before re-entering US 101 via the southbound on-ramp. The northbound US 101 off-ramp at South Mission Street will remain closed until mid-September. Drivers may detour via the 10th Street off-ramp to access the Mission San Miguel and Rios Caledonia Adobe.
The project includes a realignment of US 101 to accommodate a new right hand southbound on-ramp at South Mission Street, paving US 101 and nearby ramps and lowering the profile of US 101 at Camp Roberts to achieve a minimum bridge clearance height. Drainage systems, guardrail and lighting will also be improved within this corridor.
The San Miguel Project is expected to be complete by the Spring of 2020.
The contractor for this $53 million project is Security Paving of Sylmar, CA.
The public may learn more about these highway upgrades on the Caltrans District 5 Projects page.
