Oakland-Alameda Access Project

The I-880 Oakland-Alameda Access Project (formerly called the I-880 Broadway-Jackson Project) proposes to improve connectivity between I-880, I-980 and the cities of Oakland and Alameda.

Alameda CTC, the project sponsor, and Caltrans, the lead for California Environmental Quality Act (CEQA) and National Environmental Policy Act (NEPA) requirements, are working in partnership with the cities of Oakland and Alameda to plan, identify and analyze potential freeway access and local roadway improvements between I-880, I-980 and the Posey/Webster Tubes connecting the two cities. The project is being coordinated with multiple corridor planning efforts and local and regional developments including but not limited to the Downtown Oakland Specific Plan to make sure that any multi-modal improvements identified will not conflict with future plans within the corridor.

These proposed improvements will provide direct travel routes for motorists traveling to or from the freeway to their desired location. The project will reduce freeway-bound traffic within heavily populated pedestrian neighborhoods like Chinatown and construct safe and accessible bicycle and pedestrian facilities that will provide improved connectivity for all modes between Downtown Oakland, Chinatown, the Jack London District and Alameda.

For total project cost and phase information, see project Fact Sheets tab.

There are a number of opportunities for the public to get involved in this important project.

The project team is proactively meeting with area and regional stakeholders to gather input and address potential concerns. In addition, the project team established a Stakeholder Working Group that meet regularly. Participation is encouraged throughout the environmental process.

To stay engaged on project updates and opportunities to attend meetings, sign up here.

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The project will reduce traffic congestion on local roadways and improve overall corridor mobility and connectivity for motorists, bicyclists and pedestrians by addressing the following transportation challenges:

  • Congested city streets with long travel delays
  • Indirect routes to access the freeway
  • Operationally deficient intersections
  • Heavy vehicle traffic within active pedestrian neighborhoods (especially around Chinatown)
  • Lack of pedestrian and bicycle connectivity
  • Physical and visual barrier of I-880 overhead freeway structure
The proposed project includes multiple types of improvements throughout the corridor such as:

  • Reconstructing intersections and freeway ramps
  • Removing the northbound Broadway off-ramp to narrow the barrier effect of the overhead structure
  • Reconstructing the Posey Tube exit in Oakland to provide more direct access to I-880
  • Enhancing local roads and sidewalks including additional safety elements
  • Constructing new bicycle and pedestrian facilities within the corridor
  • Access improvements for bicyclists and pedestrians on either side of the Posey and Webster Tubes as well as opening the path within the Webster Tube
Here are videos showing the proposed project elements:
Benefits of Oakland-Alameda Access Project
  • Remove Broadway off-ramp and construct a new multi-modal 6th Street from Oak Street to Broadway
  • Upgrade Oak Street off-ramp
  • Construct right turn from Posey Tube onto a designated Horseshoe loop under I-880 at 5th and Jackson Street to access northbound I-880
  • Reconstruct I-980/Jackson Street off-ramp
  • Reconstruct 6th Street between Oak and Broadway Streets
  • Roadway and Intersection improvements on 7th Street at Harrison and Alice Streets
  • Convert Madison to two-way traffic between 4th and 8th Streets
  • Reconstruct the Webster Tube on-ramp entrance at 5th and Broadway
  • Enhance pedestrian safety at key intersections throughout the project area with signal, sidewalk and crosswalk improvements including key intersections of 5th/Broadway, 7th/Harrison and 7th/Alice
  • Construct 2-way cycle track on 6th Street and Oak Streets
  • Construct bike and pedestrian facilities along 5th Street from Oak to Broadway
  • Construct designated multi-use path from 6th Street to 4th Street along Harrison to connect to the Posey Tube and Alameda
  • Open the bike/pedestrian path within the Webster Tube with improvements to bike/ped facilities on the Alameda side
  • Enhance aesthetics and overarching connectivity within the project area
By connecting 6th Street between Oak Street and Broadway the project will:
  • Increase connectivity for motorists, pedestrians and bicyclists for eight city blocks
  • Enhance visibility for bikes and pedestrians at both Posey and Webster Tubes
  • Improve access from the south to the Chinese Garden Park and enhance park experience by adding lighting or bench amenities
  • Create opportunities to re-connect areas under the freeway to adjacent neighborhoods and re-invent public spaces
  • Promote possibilities for gateway/identity features for Chinatown, Jack London Square and downtown
The project team has been working diligently to gather and analyze project information, seek stakeholder concerns and review potential concepts that will address the current challenges. A proposed project has been identified to meet the current and future needs of the growing community. Efforts to-date include:

  • Data collection
  • Traffic analysis
  • Stakeholder engagement
  • Concept development
  • Technical Studies
With valuable input received to date from impacted property owners, stakeholders and partner agencies, the Project Team is narrowing down the Proposed Alternative to be analyzed within the environmental review. The team hopes to circulate a draft environmental document in spring 2020 for public review and comment.
Oakland-Alameda Access Project Map