Issaquah Fish Hatchery Integrated Fish Passage

Issaquah Fish Hatchery Integrated Fish Passage
Project Update July 26, 2013
The 2013 Dam Removal Project
The Dam: 1936‐ June 2013
Model of Completed Project
New Fish‐Passable Intake Structure
Rock Grade Control Weirs
Pipeline to Hatchery
Deconstructing the Dam
Stream to Be Diverted Around Site in 42” Pipeline
Dam Crest
Current Water Intake to Hatcher
Stream is Currently Flowing Through Fish Ladder Slot
View of Dewatered Dam
Some of the 42” Pipe
Disassembling the Dam
Reforming the Stream Channel
Awaiting Stream Diversion Before Removing Entire Dam Driving Sheet Piles for Upstream Temporary Diversion
Completed Upstream Temporary Diversion
Bottom End of Temporary Diversion
Remaining Parts of Dam Being Removed