Vancouver Contractor Drives Bridge Piles in Tight Schedule

摘要

A Canadian contractor scrambled to complete in-river work for a bridge replacement job near North Vancouver that had a tight window imposed by environmental regulations to protect migrating fish. The two-lane, steel-truss Dollarton Bridge, built in 1948, will be replaced by October 2005 with a 200-ft-long, two-span reinforced concrete structure. Seg-mental precast concrete sections will support a deck overlay carrying four lanes for traffic, plus two 10-ft-wide sidewalks for cyclists and pedestrians.