Interstate 580 Westbound to Interstate 80 Eastbound Connector Bus Lane
Part of the Bay Bridge Forward commute initiative, the Interstate 580 Westbound to Interstate 80 Eastbound Connector Bus Lane is one of several projects that aim to improve traffic congestion for the Interstate 80 (I-80) corridor between the Carquinez Bridge and the San Francisco-Oakland Bay Bridge.
Overview
The Interstate 80 (I-80) Bus-on-Shoulder Feasibility Analysis assessed the feasibility of pursuing bus-on-shoulder or bus lane segments on or connecting to I-80, and identified potential segments to move into project development.
One of the segments moving forward is the Interstate 580 (I-580) westbound to I-80 eastbound Connector Bus Lane. This project would construct a bus-only lane by reducing the existing right and left shoulders on the westbound I-580 to eastbound I-80 direct connector ramp. The project aims to:
- Reduce bus delays;
- Provide travel time reliability for buses; and
- Encourage the use of public transit in this congested segment.
Project Schedule
| Project Milestone | Estimated Completion Date |
|---|---|
| Feasibility Analysis | Completed Summer 2025 |
| Project Initiation Document (PID) | 2026 |
| Project Approval & Environmental Document | 2027 |
| Final Design | 2027 |
| Construction | 2029 |
View the Interstate 80 Design Alternative Assessment (DAA) & Related Projects map.
Staff Contact
Michelle Go
Phone: 415-778-6649
Email: mgo@bayareametro.gov