Presented By: Gill Brindley, UHPC Solutions North America
During the 2022 ACI Fall Convention, Phase 1 of the Delaware Memorial Bridge Deck Rehabilitation (DMB) will be under active construction. This estimated $70 million project will be the largest Ultra-High-Performance Concrete (UHPC) project in the United States using 4,700 yd3 covering a total of 550,000 ft2 deck area over 4 lanes of traffic with a length of 10,765 ft. The Delaware River Bay Authority (DRBA) awarded this project to UHPC Solutions and specified rehabilitation of Structure 1 to occur in 3 phases during the Fall of 2022, Spring of 2023 and Fall of 2023. This presentation will provide an active status update from the Phase 1 construction site. Project overview, planning details, material selection, project progress, construction methods, equipment selections, early challenges and insights from a contractor’s perspective will be presented. Hydrodemoltion, surface preparation and design details will be discussed. The experiences learned from of this iconic rehabilitation project will shape future US infrastructure projects especially rehabilitation of large suspension bridges.
