This project involved the construction of a 4.2-million-gallon welded steel tank; site work, including excavation, grading, construction of a detention pond, reservoir access road, landscaping and site fencing; utilities, including storm water conveyance system, control valve vault, flow meter vault, 16-inch-diameter water main and 12-inch-diameter water main; electrical power and controls; electrical building; and the installation of an altitude valve and flowmeter in a vault at the City of Renton’s Highlands Reservoir. The estimated construction cost is $5.4 million.
- Structural steel (including radiographic testing)
- Soil compaction
- Reinforcing steel
- Reinforced concrete