The Alameda County Transportation Commission (Alameda CTC), in cooperation with the California Department of Transportation (Caltrans) and the cities of Berkeley and Emeryville, proposes to reconstruct the I-80/ Ashby Avenue interchange to improve accessibility, safety, traffic flow, and bicycle and pedestrian facilities. These improvements are intended to provide traffic congestion relief and enhanced mobility at this critical access point and important intersection of regional transportation routes. The project will also provide multimodal transport options, while improving community connectedness, including connectivity to the existing Bay Trail. This project was approved by Alameda County voters in 2014 under Measure BB and represents a direct investment in regional infrastructure and economic development. It will provide a direct connection between westbound Interstate 80 (I-80) and Emeryville by way of Shellmound Street.
Improvements will include:
- A new bridge to replace existing bridges
- A new interchange form with connections to Shellmound Street and Frontage Road
- Provision of bicycle and pedestrian access over the I-80 freeway at the Ashby Avenue interchange
For total project cost and phase information, see project Fact Sheets tab.
The California Department of Transportation (Caltrans) in partnership with Alameda County Transportation Commission (Alameda CTC), along with the cities of Berkeley and Emeryville, are proposing to reconstruct the I-80/Ashby Avenue interchange to improve access, safety, traffic circulation, and bicycle and pedestrian connections.
Caltrans and Alameda CTC held the first open house to inform the public about the improvements being planned for this interchange where community members, elected officials, business owners, and anyone else who frequents this busy interchange offered input.
Continue to visit this page for information on future public open houses and informational meetings.
2019 OPEN HOUSE
The public was invited to attend an open house to learn about the project on May 22, 2019 at the South Berkeley Senior Center at which the following materials were presented. Additional comments and questions regarding the project can be submitted at any time to the project team at inquiry@I80Ashby.com
. Please visit the Resources tab for Frequently Asked Questions.
Frequently Asked Questions (FAQs)
Frequently Asked Questions
Ashby Avenue is an important gateway to the cities of Emeryville and Berkeley. Currently, the I-80/Ashby Avenue Interchange has no connection between Shellmound Street and westbound I-80, nor between Shellmound Street and Frontage Road. Motorists traveling westbound can access the City of Emeryville only through the I-80/Powell Street Interchange.
The proposed project will provide a direct connection to the City of Emeryville for motorists on westbound I-80 as well as a direct connection to the San Francisco Bay Trail and Frontage Road for bicycles and pedestrians.
This project was included in the voter-approved 2014 Alameda County Transportation Expenditure Plan. Alameda CTC and partner agencies are working to deliver upon this promise.
The interchange improvements will enhance connectivity for all users, including motorists, cyclists and pedestrians, by:
- Improving mobility, circulation, operations and safety
- Improving local connectivity
- Providing multimodal accessibility
- Increasing safety through incident management
- Providing more efficient access
- Lessening freight traffic on local streets
The California Department of Transportation (Caltrans) is the federal and state environmental lead for implementing the National Environmental Policy Act (NEPA) and the California Environmental Quality Act (CEQA). Alameda CTC is the project implementing agency and is working cooperatively with the cities of Berkeley and Emeryville to deliver the project. The Federal Highway Administration (FHWA) is another key project partner.
The project team has also reached out to many agencies and stakeholder groups to ensure that the proposed project reflects the input of the area’s numerous and diverse stakeholders and perspectives.
As part of the current phase of work, several interchange alternatives are being evaluated. Alternatives that improve connections for all users, including providing multimodal accessibility and improving local connectivity, will be carried forward for further evaluation through environmental studies.
The remaining project schedule includes the following major milestones and estimated
- Draft Environmental Document (DED) Initial Study/Environmental Assessment (IS/EA) –
- Public hearing – mid 2020
- Final Environmental Document (FED) IS/EA – late 2020
- Final design – mid 2022
- Construction – late 2022 - early 2025
The project cost is estimated at approximately $52 million. The primary funding source for the project is Measure BB, a transportation sales tax measure approved by Alameda County voters in 2014.
The new interchange will provide a direct connection for motorists between Shellmound Street and westbound I-80 as well as Shellmound Street and Frontage Road. The new interchange will also replace the existing bridges over I-80 allowing freight/goods movement (larger trucks) to remain safely on I-80 instead of exiting and re-entering I-80 via local surface streets. For bicyclists and pedestrians, the new interchange will provide a direct connection from the San Francisco Bay Trail to the City of Emeryville (via 65th Street) and the City of Berkeley’s Aquatic Park.
Questions and comments regarding the project can be submitted at any time to the project team at inquiry@I80Ashby.com
. Community members interested in project updates are invited to visit the project web page regularly at www.I80Ashby.com
A public open house for the project was held on Wednesday, May 22, 2019 at the South Berkeley Senior Center from 6:30-8:30pm. The purpose of the public event was to invite members of the Berkeley and Emeryville communities to interface directly and share valuable feedback with members of the project team. Meeting summaries will be posted to the project web page.
The next public meeting is slated to take place mid 2020, when community members will be invited to provide input on the Draft Initial Study and Environmental Assessment (IS/EA). Following environmental review and approval of a preferred project alternative, Alameda CTC will begin Final Design followed by construction, which is currently estimated to begin in fall 2022.