Project # 08.0030 3.00 Thornton Cr fishway Fish Passage Improvement Project IDWFW_F_163Recovery DomainsPuget SoundStart Date - End Date - StatusCompletedLast Edited04/26/2021 1 - 1 Description A one step concrete weir, 12 ft. wide, with a 25 inch low flow notch and a 6 inch drop. This weir is placed below a 6 ft. by 225 ft. concrete box culvert.