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Caltrans District 4 | WESTBOUND 84 HOV LANE EXTENSION

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PROJECT TITLE: Route 84 Westbound HOV Lane Extension from Newark Boulevard to I-880.

  • 9/24/09 CALTRANS ANNOUNCES STATE ROUTE 84 ROAD CLOSURE FOR EXTREME MAINTENANCE SEPT. 26


  • 84 Project Exhibit pdf

    PROJECT SPONSORS: Caltrans, Alameda County Congestion Management Agency (ACCMA), & the Metropolitan Transportation Commission (MTC).

    PROJECT DESCRIPTION:

    Extend the Route 84 westbound High Occupancy Vehicle (HOV) lane from the Newark Boulevard Undercrossing to the southbound I-880 off-ramp and re-stripe/widen the I-880 southbound off-ramp to Route 84 to provide an HOV bypass lane. The project includes median and outside widening, ramp modifications, concrete barrier, retaining wall, modification to the Newark Seal Slab structure (Bridge No. 33-0512), Traffic Operation System improvements, asphalt concrete and polyester concrete overlay, and highway landscaping.

    PURPOSE AND NEED:

    The purpose of this project is to complete the westbound HOV lane on Route 84 between the Dumbarton Bridge and I-880. By extending the HOV lane to I-880 carpool vehicles and buses traveling along I-880 or Decoto Road will be able to bypass existing and future congestion on Route 84. The addition of the HOV bypass lane on the I-880 southbound off-ramp will allow carpool vehicles and buses to access the HOV lane directly without crossing the two existing mixed-flow lanes.

    CURRENT STATUS:

    1. Construction is 95% complete. The median westbound HOV lane was completed on 7/30/08 and the HOV bypass lane along the off-ramp to the Decoto Road signal was completed on 8/8/08. It is anticipated that construction will be complete by early fall 2008. After construction is completed and the improvements opened to the public, the one year plant establishment period will begin.

    2. The cost of the project is $5.6 million.