A Massive Public Works Project Protects Public Health and the Environment
Brightwater Treatment Plant
Hoffman has helped re-make the typical image of a wastewater plant into an enhancement to its community, with advanced treatment technology, elegant design, and public amenities. This massive water treatment plant project was built to serve portions of King and Snohomish counties.
The Brightwater Treatment Facility supports King County’s mission of protecting public health and the environment. The facilities we built include headworks, grit removal, primary sedimentation and aeration, as well as a new membrane technology system.
Challenge
How did Hoffman effectively manage a 120-acre jobsite, coordinating with several other general contractors performing separate scopes of work on the site, all while delivering the project $30M under budget?
Solution
This massive project was in preconstruction for two years before construction. Hoffman developed detailed phasing plans and employed as many as four tower cranes to streamline material handling and minimize impacts to other contractors.
Project Story
Largest Application of Membrane Technology
Brightwater is the largest application of membrane technology in the world, with the capacity to treat an average of 33 million gallons per day, with room for future expansion. We managed a 120-acre jobsite, with as many as four tower cranes in use at once.
The Brightwater Treatment Plant was a complex construction management project with two major contractors working side by side on the same site. The day-to-day coordination issues were extensive, and the Kiewit and Hoffman teams worked seamlessly to deliver a quality project for King County that was completed on schedule and budget. It was a pleasure to witness the level of cooperation and respect both teams had through the construction and commissioning of the facilities.Kevin McEvoy Vice President and Construction Manager, CDM Smith (construction manager for King County)
Education Center
Hoffman built a LEED Platinum environmental education center on the site and created trails through natural areas. Membrane technology takes the place of traditional secondary clarifiers, removing more harmful bacteria and residual solids, producing higher-quality effluent.
Large-Scale BIM
We were highly successful in using BIM to enhance the project, control costs, and assure the highest level of quality control. We laser scanned the site to review earthwork quantities and help balance the site for cut and fill. All the excavated material was used on-site as either foreground screening mounds or backfill for the structures, which made the earthwork sequencing a complicated shell game of moving dirt from area to area.
