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

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.