A project engineer assists with a stream bypass in Lake Creek after relocating fish near the bridge work zone on SR 18, just south of I-90. The stream bypass and fish relocation occurred in early July, 2023.
Tags: fish passage fish exclusion fish relocation I-90/SR 18 Snoqualmie AH dewatering Aecon design-build Lake Creek Lake Creek bridge SR 18 barrier culverts
A construction worker guides a weighted super sack to create a temporary dam around the bridge work zone. After creating a dam, crews will catch fish with nets and relocate them in water-filled buckets downstream, away from the work zone. Once fish are relocated and water is diverted, crews can finish bridge building and remove the barriers to fish passage under SR 18. They only have a couple of months to finish "in-water" work before the "fish window" ends. The stream bypass and fish relocation occurred in early July, 2023.
Tags: fish passage fish exclusion fish relocation I-90/SR 18 Snoqualmie AH dewatering Aecon design-build Lake Creek Lake Creek bridge SR 18 barrier culverts
Crews capture fish near the Lake Creek bridge work zone and release them farther downstream. The stream bypass and fish relocation occurred in early July, 2023.
Tags: fish passage fish exclusion fish relocation I-90/SR 18 Snoqualmie AH dewatering Aecon design-build Lake Creek Lake Creek bridge SR 18 barrier culverts
Project biologists capture fish in Lake Creek and relocate them downstream, past the bridge work zone on SR 18, just south of I-90. Behind the fishers, another worker assists with stream diversion. The water is drained around the old culverts so crews can finish building the bridge and remove the barriers beneath the roadway. They will "rewater" the stream when bridge work is finished. The stream bypass and fish relocation occurred in early July, 2023.
Tags: fish passage fish exclusion fish relocation I-90/SR 18 Snoqualmie AH dewatering Aecon design-build Lake Creek Lake Creek bridge SR 18 barrier culverts
Contractor crews capture fish in Lake Creek to relocate them downstream, past the bridge work zone on SR 18, just south of I-90. Other workers carefully pump water from Lake Creek as fishers catch and release the last of the fish. The stream bypass and fish relocation occurred in early July, 2023.
Tags: fish passage fish exclusion fish relocation I-90/SR 18 Snoqualmie AH dewatering Aecon design-build Lake Creek Lake Creek bridge SR 18 barrier culverts