LAN designed an 85-mgd water supply intake system which includes two submerged timber cribs, 7600 feet of intake pipeline (60- and 78-inch), an onshore junction chamber, and a zebra mussel control system. Existing artesian conditions imposed significant hydrostatic and uplift loads on the junction chamber and tunnel portion of the pipeline, complicating both design and construction. The 78-inch intake pipeline terminates inside the adjacent pump station with a 78- by 78-inch fabricated stainless steel slide gate.

As this is the first phase of the overall water supply initiative, the junction chamber walls were designed with a blockout for tunneling and piping connection to the future lake pumping station.