As the prime A-E contractor, we provided most design disciplines for this modernization initiative. Under a single task order, we developed design drawings using Revit and specifications using SpecsIntact for civil, structural, mechanical, plumbing, electrical, telecommunications, fire protection engineering, site development, architecture and interiors.
Dry dock repairs included the cover, systems/utilities, steel and concrete caissons, and 11 ancillary/support buildings. Our work also included utility evaluation and design accommodations to support the future Columbia Class submarine, to minimize future dry dock downtime for maintenance.
Critical repairs include blast repairs of structural steel; metal panel replacement; overhaul of electrical and mechanical systems including substations, switchgear, and pumping systems; provisions for a new auxiliary sea water system with chemical treatments; steel caisson repairs; bridge crane repairs; environmental permitting; cybersecurity design; and various repairs to ancillary support buildings.
We also provided commissioning services for dry dock and steel caisson mechanical and electrical systems.
Key Project Components
Phasing and scheduling: We were involved across all project phases, from planning to final design to construction. The design package was phased, structured around the Navy-provided 15-month window where the dry dock would be empty and all critical repairs needed to occur. This extraordinary undertaking demanded meticulous planning to meet the fleet's strict no-fail ballistic missile submarine maintenance schedule. The team had just 10 months to prepare bid documents for the repairs, valued at $600 million.
Engineering services during construction: Throughout construction, we provided up to four full-time, on-site project engineers focused on providing Post-Construction Award Services (PCAS) to NAVFAC’s Resident Officer in Charge of Construction (ROICC) office. The on-site project engineers’ duties included responding to RFIs, final review of submittals, facilitating contract modifications, attending construction meetings, performing quality control inspections, and providing inspection reports. They also supported construction 24 hours per day, six days per week.
Preparing planning studies: Our team developed an engineering study to determine the extent of necessary repairs through field investigations, pipe inspections, hazardous materials testing, 3D laser scanning and personnel interviews. Costs for each repair were determined and a DD1391 was developed.
Design workshop: After completion of the study, we conducted the project kickoff, design workshop, and detailed field investigations, including in-depth scope discussions for the dry dock, ancillary buildings and required support facilities.
Free zone and security: We designed a security fence and road to create a free zone for contractors, which eliminated downtime associated with base security at the project site. The free zone isolated the dry dock from the remainder of the waterfront restricted area, significantly reducing downtime associated with security at the site for construction contractors.
Temporary facilities: We provided design and performance specifications for the temporary facilities needed to house TRF personnel and equipment during construction, including offices, lockers, tool room, covered storage, fixed fighting positions, clean room and tower.