The North Yarmouth Bridge is a stress laminated deck. It consists of longitudinal parallel-chord Metal- Plate-Connected (MPC) trusses that are transversely post-tensioned. As in the Byron bridge, the MPC trusses extend the span of solid stresslam decks and provide for exceptional stiffness. Deflections under HS25-equivalent dump trucks was less than L/1600. A 5-year monitoring report is available.

Specifications

• Year Constructed: 1993
• Length: 37.75 ft.
• Width: 31.75 ft.
• Design Live Load: HS25-44
• Wood Species: CCA-Treated, Machine-Stress-Rated Southern Pine
• FRP Tensile Strength: NA
• FRP Tensile Modulus: NA
• FRP Material Suppliers: NA

Sponsored by: Federal Highway Administration, Maine Department of Transportation