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Alfred I. DuPont Hospital Rockland Garage Restoration - Wilmington, Delaware TimHaahs provided Alfred I. duPont Hospital for Children with restoration services for the Rockland Garage. The two level garage serves two office buildings, and is located adjacent to the Hospital’s campus in Wilmington, Delaware.  The garage consists of two separate levels that contain an estimated 300 parking spaces on an approximate footprint of 180’ by 300’. The ground level of the garage contains a concrete slab-on-grade floor. The structural system is comprised of composite metal deck flooring supported by steel joists, beams, and columns.  TimHaahs’ design achieved waterproofing of the supported level through the routing and sealing of floor cracks, expansion joint replacement, and the application of a penetrating sealer. TimHaahs’ design also increased pedestrian safety through the installation of guardrails along bumper walls with a significant grade differential, additional light fixtures for intensified lighting, and emergency phones at each stair tower |