Washburn Tunnel Inspections and Evaluation
TranSystems performed initial and biennial inspection, reporting, load rating and evaluation services for the Washburn Tunnel, a two-lane, 2,936-foot underwater motor-vehicle tunnel connecting Galena Park and Pasadena, two suburbs of Houston, Texas beneath the Houston Ship Channel. This is the only underwater tunnel in Texas. Scope of work included mobilization, field inspection and report preparation. The inspections include the structural, civil and functional system elements in accordance with the Federal Highway Administration (FHWA), Publication No. FHWA-HIF-15-005 Tunnel Operations, Maintenance, Inspection, and Evaluation (TOMIE) Manual and FHWA Publication No. FHWA-HIF-15-006, Specifications for the National Tunnel Inventory (SNTI).