Description
The City of Issaquah is seeking a consulting firm to provide services for the Issaquah Creek Stream and Riparian Habitat Restoration at Squak Valley Park South project. The project aims to improve approximately 730 feet of riparian habitat along the east bank of Issaquah Creek. The selected consultant will be responsible for designing and implementing a combination of stream and riparian habitat restoration and enhancements, including excavating backwater channels, removing invasive vegetation, and placing large woody debris. The consultant will also assist the City with preparing environmental permit applications and coordinating with permitting agencies.
• Excavate backwater channels to create floodplain storage and rearing and refuge habitat.
• Identify significant trees to save and protect that will maximize environmental benefit.
• Remove invasive vegetations and plant native shrubs and trees with strategic use of bioengineering techniques.
• Strategically place log jams and large woody debris in the main channel, near backwater channel entrances and within expanded floodplain to help stabilize the stream bank and create hard toe points where additional stabilization is needed.
• Remove bank armor along select locations of the main channel and at backwater channel entrances.
• Define outer limits of channel migration zone to protect infrastructure and private properties.
• Provide a walking trail with channel access points and interpretive signage.