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    • Tunnels

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    Bridge Design

    D.C. Metro seeks proposals for Yellow Line Bridge and tunnel rehab project

    March 9, 2021
    The bridge is now showing excessive wear and corrosion
    Belle-Chasse_LaDOTD_0
    Bridges

    Belle Chasse Bridge and Tunnel project in Louisiana receives INFRA grant

    Aug. 15, 2018
    The $45 million grant will be used to replace both the concrete tunnel and the structural steel vertical-lift-span bridge
    Alaskan Way
    Tunnels

    Flowering in the fall

    Aug. 2, 2018
    S.R. 99 tunnel project could wrap up later in the year
    HRBT
    Bridges

    Hampton Roads Bridge-Tunnel project to expand capacity with fourth lane

    May 21, 2018
    The addition to the design could potentially increase capacity from 4,700 to 6,300 cars per hour
    I-70 Colorado
    Highway Construction

    Colorado DOT proposes Floyd Hill tunnel project, toll lane on I-70

    May 16, 2018
    CDOT currently lacks funding to move forward on the $550 million tunnel project
    Belle-Chasse_LaDOTD
    Bridges

    Louisiana plans first P3 for Belle Chasse Tunnel and Bridge replacement

    March 9, 2018
    The public-private partnership would provide the $122 million needed to replace the tunnel and bridge