Highway 1 Auxiliary Lane and Bus-on-Shoulder Project Construction Updates
The RTC is currently constructing the second phase of the Highway 1 Auxiliary Lanes and Bus-on-Shoulder project. Phase II from Bay Avenue/Porter Street to State Park Drive, including a new bicycle and pedestrian overcrossing at Mar Vista Drive and a replacement of the Capitola Avenue overcrossing, began construction in early 2024 and is expected to be completed in 2027. Phase I from 41st Avenue to Soquel Drive, including a new bicycle and pedestrian overcrossing at Chanticleer Avenue was completed in spring 2025.
Construction updates, including any road or highway closures or other activities that may impact traffic, will be posted weekly.
Phase 1: 41st Avenue to Soquel Drive
New Auxiliary Lanes Between 41st Avenue and Soquel Avenue/Drive and Chanticleer Bicycle & Pedestrian Overcrossing are now open
Phase 2: Bay/Porter to State Park Drive
Long-Term Closure of Highway 1 On and Off-Ramps at State Park Dr. to Begin Monday, November 16
Beginning Monday, November 16, the Highway 1 southbound State Park Dr. offramp and Highway 1 northbound State Park Dr. on-ramp will be closed for approximately five months as crews reconstruct the ramps as part of the bus-on-shoulder facility.
Travelers heading northbound from State Park Dr. will follow a detour on State Park Dr. to Searidge Road to turn right onto McGregor Drive where they will use the northbound Highway 1 on-ramp at Park Ave. Travelers exiting southbound to State Park Dr. will continue southbound and exit at Rio Del Mar Blvd. Drivers can either turn left onto the northbound Rio Del Mar on ramp to northbound Hwy. 1 and exit at State Park off-ramp or turn left on Soquel Dr. to follow the detour back to State Park Dr.
Message and directional signs will alert travelers in advance of the areas under traffic control. Please allow for extra time for your travels through the area.
Closure of Southbound Highway 1 Offramp at Bay Avenue
On August 2, crews closed the southbound Highway 1 off-ramp at Bay Ave. The southbound Bay Ave. off-ramp is scheduled to be closed for approximately four months as crews reconstruct the ramp as part of the bus-on-shoulder facility.
Travelers will follow a detour on southbound Highway 1 to continue southbound and exit at the southbound Park Avenue off-ramp. They will then turn left onto Park Avenue, continue on Soquel Drive, and follow the detour signs back to the Porter Street/Bay Avenue area.
Message and directional signs will alert travelers in advance of the areas under traffic control. Please allow for extra time for your travels through the area.
Closure of Southbound Highway 1 Onramp at Park Avenue
A project to construct north and southbound auxiliary lanes and bus-on-shoulder improvements on Highway 1 between the Bay Avenue/Porter Street and State Park Drive interchanges continues.
On Sunday, April 19, crews closed the southbound Highway 1 onramp at Park Ave. The southbound Park Ave. onramp is scheduled to be closed for approximately nine months. This is because the southbound section involves a more extensive scope of work which includes a full roadway structural replacement.
Travelers have two detour options. One detour is heading south on Soquel Dr. and the other is south on McGregor Dr. where both roads lead to the southbound Highway 1 State Park Dr. onramp.
During the closure, crews will be making necessary improvements to the onramp to accommodate the bus-on-shoulder facilities.
Message and directional signs will alert travelers in advance of the areas under traffic control. Please allow for extra time for your travels through the area.
Capitola Avenue Overcrossing Now Open
Other Closures
Murray St. Bridge Closure
The bridge is currently open to one-lane, eastbound-only traffic. Westbound traffic must use detour. Westbound vehicles are detoured via 7th Ave., Soquel Ave., and Seabright Ave. Learn more at santacruzca.gov/msb
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