Skyline-Great Highway Intersection Project

Project Summary:

Picture of the current intersection of Skyline and Great Highway in San Francisco County.Currently there are no signals or crosswalks at the intersection of State Route 35 and Great Highway. Thanks to an engineering and construction plan that is about to be implemented by Caltrans, this is about to change.

The team at Caltrans has designed a multi-modal solution for the intersection that will make life safer for pedestrians, bicyclists, and motorists who travel this historic highway.

Traffic lights will be installed for all directions along with a crosswalk to help pedestrians and cyclists. When completed, motorists, bicyclists, and pedestrians will enjoy a safer experience at the intersection.

In addition, a multimodal curb ramp will be installed to provide pedestrians and bicyclists access to the Lake Merced Trail.

Finally, this project will not interfere with the city of San Francisco’s plans for Upper Great Highway.


Construction was expected to begin in January once PG&E relocates the existing power lines at the intersection. Construction is expected to last approximately 100 days. Due to the ongoing storms, PG&E has been overwhelmed conducting emergency repairs. Caltrans has been endeavoring to impose a start date on the project which is yet to be determined.

All of the work that could be impactful to motorists, pedestrians, and bicyclists is scheduled to be conducted at night. The intersection will remain open during construction hours. During construction, vehicles could be limited to alternating one-way traffic controls for the safety of the construction workers.

There could be some daytime work but it is not expected to impact traffic significantly.

If you have questions about the project or need more information, please contact Ryan Leong, Public Information Officer for Caltrans, at