State Route 35 Pavement Preservation Project
Project Summary
Caltrans has scheduled to begin a pavement preservation project on State Route 35 (Skyline Boulevard) from the San Mateo County line to Sloat Boulevard in the City and County of San Francisco. The project will preserve and extend the lifespan of the existing pavement, address failed pavement locations, and enhance ride quality for motorists in both directions.
In addition, the project will replace traffic detector loops to improve traffic operations and accessibility along the corridor. Together, these improvements will enhance safety and help keep the roadway operating efficiently for all roadway users.
Work Description
Work includes removing a thin layer of the existing asphalt pavement and placing a new rubberized asphalt surface to extend the life of the roadway and provide a smoother ride.
Additional work includes repairing damaged pavement, refreshing pavement striping and markings, and replacing existing traffic detector loops.
Project Limits
The project is located on State Route 35 (Skyline Boulevard) in the City and County of San Francisco, extending from the San Mateo County line to Sloat Boulevard (PM 0.0/2.0).
Key Dates
Construction will begin in Summer 2026 and is estimated to be completed by Fall 2026.
Tentative Lane Reductions on SR-35
State Route 35 will have lane closures during both daytime and nighttime work hours, with at least one lane remaining open to traffic in each direction at all times.
Southbound closures:
- 9:00 AM–5:00 PM and 8:00 PM–6:00 AM weekdays
- 8:00PM–8:00 AM Saturday, 6:00 PM–9:00 AM
Sunday Northbound closures:
- 8:00 PM–3:00 PM weekdays,
- 7:00 PM–9:00 AM Saturday, 7:00 PM–10:00 AM Sunday.
Traffic Management Plan (TMP) will be implemented to help reduce traffic demand and minimize delays. Please note that closure times and dates are subject to change.
SR-35 Closure Detour Routes During Paving and Striping Work
- Southbound SR-35 Detour: On-ramp from EB Sloat Blvd Closed
Motorists traveling on eastbound Sloat Blvd toward southbound SR-35 on-ramp are advised to proceed on northbound SR-35, turn right to southbound Sunset Blvd, turn right to westbound Lake Merced Blvd, and turn left to enter southbound SR-35. - Southbound SR-35 Detour: On-ramp from WB Sloat Blvd Closed
Motorists traveling on westbound Sloat Blvd toward southbound SR-35 on-ramp are advised to proceed on westbound Sloat Blvd, U-turn to eastbound Sloat Blvd, and turn right on on-ramp to southbound SR-35. - Northbound SR-35 Detour: On-ramp to WB Sloat Blvd Closed
Motorists traveling toward westbound Sloat Blvd from northbound SR-35 are advised to proceed on northbound SR-35/eastbound Sloat Blvd, turn right on northbound Sunset Blvd, turn right on eastbound Yorba Street, turn right on southbound 36th Avenue, and turn right on westbound Sloat Blvd/southbound SR-35. - Northbound SR-35 Detour: On-ramp from Eastbound Sloat Blvd/Northbound SR-35 Closed
Motorists traveling on northbound SR-35 toward eastbound Sloat Blvd/northbound SR-35 are advised to turn left to westbound Sloat Blvd, turn right to northbound 41st Avenue, turn right to eastbound Wawona Street, turn right to southbound Sunset Blvd, and turn right to Eastbound Sloat Blvd/northbound SR-35. - Northbound SR-35 Detour: Off-ramp to Eastbound John Muir Drive Closed
Motorists traveling toward northbound SR-35 from eastbound John Muir Drive should proceed toward northbound SR-35, turn left to westbound Zoo Road, turn left to eastbound Zoo Road, turn right to southbound SR-35, and turn left to John Muir Drive. - Southbound SR-35 Detour: Off-ramp to Eastbound John Muir Drive Closed
Motorists traveling toward southbound SR-35 from eastbound John Muir Drive should proceed toward southbound SR-35, turn right to westbound Thorton Beach Road; eastbound Thorton Beach Road, turn left to northbound SR-35, and turn right to John Muir Road. - Southbound SR-35 Detour: On-ramp from Westbound John Muir Drive Closed
Motorists traveling toward southbound SR-35 from westbound John Muir Drive should proceed toward southbound SR-35, turn right to westbound Thorton Beach Road; eastbound Thorton Beach Road, turn left to northbound SR-35, and turn right to John Muir Road. - Southbound SR-35 Detour: On-ramp from Westbound John Muir Drive Closed
Motorists traveling toward southbound SR-35 from westbound John Muir Drive should proceed toward northbound SR-35, turn left to westbound Zoo Road, turn left to eastbound Zoo Road, and turn right to southbound SR-35. - Southbound SR-35 Detour: On-ramp from Westbound John Muir Drive Closed
Motorists traveling toward southbound SR-35 from westbound John Muir Drive should proceed toward southbound SR-35, turn right to westbound Thorton Beach Road; eastbound Thorton Beach Road, turn left to northbound SR-35, and turn right to John Muir Road. - Northbound SR-35 Detour: On-ramp from Westbound John Muir Drive Closed
Motorists traveling toward northbound SR-35 from westbound John Muir Drive should turn left to southbound SR-35 on-ramp, turn right to westbound Thorton Beach Road; eastbound Thorton Beach Road, and turn left to northbound SR-35.