Bowman partnered with English Construction for this Design-Build project for a central wastewater collection, treatment and disposal system to serve the service districts of Catlett and Calverton. The project includes a new collection system consisting of individual Septic Tank Effluent Pump (STEP) systems that transfer wastewater to a 80,000 gpd central wastewater treatment plant utilizing an Integrated Fixed Film Activated Sludge (FAS) technology. Effluent will be disposed of through the use of subsurface drip irrigation drain fields.

Bowman was hired as a primary engineering consultant, and completed the design, engineering and permitting for 17 miles of pipeline replacement. The majority of the designs were in major metropolitan cities or urban areas, with significant construction conflicts of other underground utilities. Included in the designs were the tie-in details, by-pass details, complete bill of materials, and service connections.

Bowman provided planning, surveying and design services to the City of Colonial Heights for the Phase III and IV drainage and utility improvement plans of the Bruce Avenue Drainage Improvements project. This project included approximately 6,500 linear feet of city streets. The scope of the project included complete water, sanitary sewer and storm sewer replacement. The project also involved substantial excavation of the roadways within the ROW limits and rebuilding of new asphalt sections and curb and gutter.

Bowman provided major upgrades to the Town of Broadway’s Water Treatment Plant. The upgrades included the installation of a state of the art 1.8MGD Pall Corp. MF membrane treatment system in a new concrete filtration building, upgraded and automated chemical feed systems, a 100,000-gallon well storage tank, and a 350,000-gallon finished water clear well.

Bowman provided on-call services to Fairfax County’s Stormwater Planning Division. The team provided environmental consulting services, conceptual and final engineering design, and construction phase administration for this stream restoration project. Bowman’s team of environmental scientists performed a wetland delineation and stream mitigation evaluation, and a Water Quality Impact Assessment report and small whorled pogonia survey were prepared.

Bowman provided surveying, civil engineering design, construction stakeout, and construction administration services for the U.S. Border Patrol station in Nogales, Arizona. The installation of the new modular facility included re-grading the existing site, delivering supporting water and sewer line extensions, and an expansion and repaving of the existing parking lot.