Complete reconstruction of the seven-span, 1500-FT Memorial Bridge in Springfield, MA. The historic concrete bridge carries nearly 25,000 vehicles per day over the Connecticut River.
|Designer:||Fay, Spoffard & Thorndike (now Stantec)|
- Replacement of the entire deck system.
- 775 tons of steel.
- 12,000 CY of poured concrete.
- Removal of the deck and floor beams left only five concrete-reinforced structural steel arches, 8-feet deep and 5-feet wide.
- Reconstruction of the arches involved chipping 4” from the exterior arches and replacing with a mix of wet and dry Shotcrete.
- Self-supporting formwork suspended from the bridge arches to allow casting of 30-foot span floor beams without any falsework.
- Recasting of the four concrete monuments, 70-feet tall, each supporting original 16-foot bronze ornamental globes from 1920.
- Recreation of the deteriorated cartouches (eagle monuments) using reverse molds and modern fiberglass materials.
- Scope of the work increased 30 times post bid-day.
- Work completed 6 months ahead of schedule.
- Awards: Build America Award
Tags: Bridge, GC, Heavy, Historic, Infrastructure, Massachusetts, Renovation