Aug. 14, 2018: N Mercer Island and Enatai Interceptors Upgrade. Conf date 9/26/18 at 130 pm The proposed Project would: construct a new in-water interceptor via in-water open-cut and cover from Mercer Island Boat Launch to Enatai Beach Park located in the East Channel Crossing; install pipe to connect the East Channel Siphon to new siphon outlet and flow diversion structures, new odor control vaults and 5 maintenance holes in Enatai Beach Park; install new siphon pipeline using HDD between Enatai Beach Park and Sweyolocken Pump Station; rehabilitate existing pipeline located in Lake Washington from Enatai Beach Park to Sweylocken Pump Station with cured in place liner; install temporary by-pass system; replace existing pipe at the Enatai Beach Park Swim Beach; isolate angle structures located in-water and access maintenance holes located under 3 private docks for liner installation; and install 5 new maintenance holes at Sweyolocken Pump Station.

Nov. 15, 2019: Completed.

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