SR 84 Expressway Widening and SR 84/I-680 Interchange Improvements Project

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The California Department of Transportation (Caltrans), in cooperation with the Alameda County Transportation Commission, proposes to widen and upgrade State Route (SR) 84 to expressway standards between south of Ruby Hill Drive and the Interstate 680 (I-680) interchange. The project would also improve SR 84/I-680 interchange ramps and extend the existing southbound I-680 High Occupancy Vehicle/express lane northward by approximately 2 miles. The purpose of the project is to alleviate traffic congestion on SR 84 and at the SR 84/I-680 interchange, and to improve safety and conform SR 84 to expressway standards between south of Ruby Hill Drive and the I-680 interchange.


Caltrans filed a Notice of Preparation (NOP) with the State Clearinghouse on May 12, 2016. The NOP contains information about the proposed project activities, project location, and environmental studies.


Share your comments: You are invited to help identify the scope of the environmental studies being conducted for the project. Please provide comments by e-mail to or in writing to Mr. Jamie Le Dent, Caltrans, 111 Grand Avenue MS 8B, Oakland, CA, 94612. All comments must be received by June 13, 2016.

Attend a meeting:You are invited to attend a public scoping meeting and open house to discuss the proposed project. Meetings will be held at the following locations and dates:

Tuesday, May 17, 2016
Click here to view the scoping presentation.

Wednesday, May 18, 2016
6 to 8 PM, Granada High School, Student Union, 400 Wall St, Livermore, CA 94550

Tuesday, May 24, 2016
6 to 8 PM, Veterans Memorial Building, Main Hall, 301 Main St, Pleasanton, CA 94566

A brief presentation on the project development and environmental review process will begin at 6:30 PM. The rest of the meeting will consist of an open house in which attendees can view informational exhibits and ask questions of project team members. For language translation, special seating accommodation, or other assistance at the public scoping meetings, please contact Olga Rodriguez, Project Manager, Alameda CTC, at (510) 208-7476 at least five days before the meeting.


For additional information, contact Ron Kiaaina, Project Manager, Caltrans at 510-286-4193 or contact Olga Rodriguez, Project Manager, Alameda CTC, at (510) 208-7476.

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