The Page Mill Road Expressway Study project will identify improvements to relieve congestion and improve pedestrian and bicycle connectivity along the expressway and at intersections between I-280 and El Camino Real. Concept plans and traffic simulation models have been developed for various alternatives. Feasibility analysis will be conducted to further refine the alternatives.
The County is working in conjunction with Caltrans, VTA, City of Palo Alto and Town of Los Altos Hills on this project.
Stay tuned for updated project information and upcoming public meetings or receive the information by clicking the button below and subscribing to our project update list.
The project team has been working closely with City of Los Altos Hills, City of Palo Alto, Caltrans, and VTA staff for input on the technical analysis, including concepts to illustrate potential project configurations. The concepts are planning level drawings (not design level) to determine technical feasibility, potential right-of-way impacts, a cost estimate for the Plan list, and community acceptability. There are three alternative concepts each for the Page Mill/I-280 interchange improvements and for grade separating the Page Mill/Foothill-Junipero Serra intersection. A final proposed concept for each of these two locations will be one of the alternatives shown or a hybrid/modified concept based on the analysis of the alternatives and community input.
Page Mill/I-280 Interchange Alternatives
Concept 1-Signalization Bike and Ped Facilities
Concept 2-Southbound Ramp Realignment
Concept 2-Southbound Ramp Realignment Bike and Ped Facilities
Concept 3-Roundabout Concept
Concept 3-Roundabout Concept Bike and Ped Facilities
Traffic Simulations Videos: Using a traffic demand model, traffic flow simulations have been developed for the AM and PM peak periods for each of the alternatives using projected 2025 traffic volumes. Videos of the simulations have been posted on YouTube (click here).
Existing Condition AM
Existing Condition PM
Concept 1 Signalization AM
Concept 1 Signalization PM
Concept 2 Southbound Ramp Realignment AM
Concept 2 Southbound Ramp Realignment PM
Concept 3 Roundabout AM
Concept 3 Roundabout PM
Page Mill Road Expressway
Page Mill Expressway between Foothill Expressway and El Camino Real Intersection Improvements
Page Mill Overcrossing Foothill Expressway Alternative 1
Page Mill Under Elevated Foothill Expressway Alternative 2
Page Mill Under Foothill Expressway Alternative 3
Page Mill Between 1-280 and Foothill Expressway Widening to 6 Lanes with Trail
Page Mill at El Camino Expressway
As part of the Expressway Plan 2040 Project, Community Meetings were held this fall by Expressway.
Click here for meeting details; flyers, presentation and summaries.
To see the entire list of meetings return to the Expressway Plan 2040 Project website. www.expressways.info
Project Fact Sheets, Documents and History
The PageMill280 FACT SHEETS and System Maps
are available on a separate page.
The project documents and history are available on a separate page.