The current Morgan-Sullivan bridge, originally built in 1946, is structurally deficient. The new bridge will be widened to include four lanes for vehicles and Complete Streets improvements, including new sidewalks and separated 2-way bike lanes on the east side of the bridge. New sidewalks will also be added in several locations where currently none exist and connect to the Doering Middle School and the Big E site. Additional improvements include new turn-lanes at major intersections, drainage system upgrades, and additional queuing space for vehicles on both sides of the bridge to ease traffic congestion. The project will also reconstruct and add new traffic signals to three intersections: Memorial Avenue (Route 147) at River Street in West Springfield; Springfield Street (Route 147) at Main Street/Suffield Street in Agawam; and Springfield Street (Route 147) at Walnut Street/Walnut Street Extension in Agawam.