Western Specialty Contractors Completes Restoration/Waterproofing of Museum Roof Beneath St. Louis' Historic Gateway Arch
The St. Louis branch of Western Specialty Contractors recently completed a project to restore and waterproof the roof of the Museum of Westward Expansion located beneath the iconic Gateway Arch on the St. Louis Riverfront. The work is part of a multi-phase project, spearheaded by non-profit organization CityArchRiver Foundation, to expand and renovate the underground museum, plus renovate the grounds surrounding the Arch.
Work on the 100,000-square-foot existing museum roof started by removing 16-18 inches of sod and sandy soil, 10-28 inches of Elastizell engineered fill and the existing waterproof membrane down to the structure deck using a bulldozer and air scrapers.