Dewatering

Location: Seattle, WA

Project Partner: Hoffman Construction Company

Challenge: Shoring, Sheet Piling and Dewatering System

Overview: Condon-Johnson was contracted for the shoring and dewatering for underground concrete storage tanks. The scope of this project entailed the installation of secant piles, sheet piles, internal bracing, and the installation, operation and removal of a dewatering system.

Results: Condon-Johnson installed 20,827 square feet of shoring and dewatering for three excavations. There were 20 dewatering wells as a part of the dewatering system. The system produced a total of 2,700 to 3,800 gallons per hour.