Bassett Road over I-91 (Bridge No. 03120)

North Haven, CT


    Construction Cost:

    $6.2 Million

    Key Facts:
    • Largest 100% GRS-IBS Structure Designed
    • Accelerated Bridge Construction
    • 4-Month Construction Window
    • Unique Design Approach
    • Evaluating Constructability Critical


    2019 CSCE Small Project ACE Award Recipient

    GM2’s design replaces the existing 347FT structure with two independent, single span Geosynthetic Reinforced Soil-Integrated System structures (GRS-IBS) that utilize two contiguous abutments in the I-91 median and raises the Bassett Road profile to provide a 16’-3” vertical clearance over I-91. GM2’s scope of work included comprehensive engineering design services for the final design of the replacement bridge including all aspects of design and coordination.