Rehabilitation of the Mall Tunnel

The District Department of Transportation (DDOT) seeks a qualified consulting firm to provide comprehensive design‑consultation services for the rehabilitation of the Mall Tunnel in Washington, DC. The effort will require a multidisciplinary team that includes a Project Manager, structural, mechanical, and electrical engineers, inspection team leaders for each discipline, and an IT system administration support staff. All key personnel must hold appropriate professional licenses (PE/CEng) or NTIS tunnel‑inspection certification and meet stringent experience thresholds (10 years overall, with at least 5 years on tunnel projects for engineers, 6 years for inspection leaders). The scope covers project management, detailed engineering design, on‑site inspections, safety oversight, and IT support for project data systems. • Deliver full design documentation and engineering calculations for tunnel structural, mechanical, and electrical systems. • Conduct on‑site inspections, defect assessments, and provide certification reports. • Provide project‑level coordination, budgeting, scheduling, and stakeholder communication throughout the rehabilitation lifecycle.