This project involved construction of an 82-foot diameter by 30-foot tall, 1.0-MG AWWA D-100 welded steel tank with an internal press-brake formed knuckle roof. The press-brake roof provides increased plate stiffness, efficient load transfer, and long-term durability with minimal internal framing. The tank was integrated into an active site with two existing tanks, new electrical building, CMU wall, fencing, and paving. Standard appurtenances were included, along with a level level indicator to improve redundancy, operator visibility, and overall system reliability.

This project consisted of a single tank replacement in Big Bear, California. The new 613,000-gallon welded carbon steel tank features an internal press-brake formed roof and was selected for its long-term durability, structural strength and decreased maintenance costs.
Welded steel provided for efficient field erection and precise quality control. The material choice supports a long service life with minimal maintenance and enabled the tank to be constructed and placed into service on an accelerated schedule compared to alternative materials.

This two-tank expansion project in northern California added two matching 1.4-million-gallon welded carbon steel storage tanks, increasing system capacity and redundancy. The tanks feature identical spiral staircases and aluminum dome roofs that provide a clear-span, column-free interior to support water quality. Welded steel construction enabled efficient field erection and long-term durability, while the lightweight aluminum dome roofs offer corrosion resistance and strong performance under wind and seismic loads. Custom exterior coatings allow the tanks to blend into the surrounding landscape.