Kissick Construction built a low-water diversion weir across the Kansas River to feed the raw water intake for the Johnson County Water District. The weir was built as a permanent cellular cofferdam design using a series of sheet pile cells. The project included compaction grouting, micropile installation, structural concrete cap, and structural modifications to the adjacent raw water intake structure.
The new structure replaced an old boulder-filled gravity dam structure and incorporated construction technologies including vibro-replacement to optimize relative densities, jet grouting, geocomposite drains, micropiles for underpinning existing river structures and selective demolition and repair of existing facilities. Existing intake operations were maintained throughout the construction of the improved jetty system.