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SUNCADIA A 6,000-acre resort development in Roslyn, WA comprising more than 2,500 home sites and three championship golf courses. Spotlight Accelerated schedule and environmentally sensitive construction techniques. Problem As part of the Phase III Tumble Creek Golf Course construction, irrigation lines from the water source in Phase I to the golf course irrigation lines within Phase III were required. This had to be accomplished through the extremely environmentally sensitive Cle Elum River corridor. The work involved the installation of 22,000 feet of pipe, the design/build construction of a temporary crossing of the Cle Elum River, and the installation of a 6” high lift diesel booster pump. The golf course had recently been hydroseeded, and irrigation water was drawn from the Cle Elum River under a temporary permit. Due to Salmon migrations, the permit was scheduled to expire on September 1st. This required all work to be completed within 22 working days. The river crossing SEPA permit required that no construction take place within 20’ of the high water level at anytime. Solution To meet the schedule demands and environmental constraints, Sajasa developed a work plan under which a clearing crew, an earth moving crew, and a pipe crew began work in different areas simultaneously, thus avoiding any sequence delays. The schedule required that all pipe work be completed within the first 15 days to allow sufficient time to construct and tie into the river crossing, install the pump, and test the system. Half of the pipe installation had to be performed within a 30’ wide cleared area adjacent to the sensitive river corridor. A design began immediately to support, anchor and suspend the 10” diameter HDPE line more than 250 feet across the Cle Elum River. Results With only minimal clearing--none within 200’ of the river corridor--the pipeline was constructed, the river crossing was designed and built, and the pump was installed. The system was tested and began delivering water by September 1st. Acknowledgements
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