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Lynden Levee Rehabilitation and Channel Realignment
Summary
This project included realigning a channel that runs adjacent to the Lynden Wastewater Treatment Plant and enhancing habitat in the newly created channel. It was constructed in conjunction with a levee improvement project by the US Army Corps of Engineers (USACE). The USACE project included replacing two existing culverts that penetrate the levee with a new culvert and fish-friendly flood gate, and restoring the levee crest and erosion protection.
Project Update
Both projects were constructed in tandem between June to September 2021. Riparian planting at both project sites and mitigation sites was completed in March 2022.
Project Slide Show - slides showing before, during, and after photos.
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Lynden Levee Eroding Bank Pre-Construction
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Overtopping Levee February 2020 Flood
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Lynden Levee During Construction - River Bank Stabilization & New Culvert
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Lynden Levee During Construction - Channel Realignment
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Lynden Levee Post Construction - New Flood Gate
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Riparian planting March 2022
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Lynden Levee Post Construction - High Flow
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Lynden Levee post construction August 2022
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Lynden Levee post construction August 2022
- 1 Lynden Levee Eroding Bank Pre-Construction
- 2 Overtopping Levee February 2020 Flood
- 3 Lynden Levee During Construction - River Bank Stabilization & New Culvert
- 4 Lynden Levee During Construction - Channel Realignment
- 5 Lynden Levee Post Construction - New Flood Gate
- 6 Riparian planting
- 7 Lynden Levee Post Construction - High Flow
- 8 Lynden Levee post construction oblique view August 2022
- 9 Lynden Levee post construction oblique view August 2022
Contact Us
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Deb Johnson, PE
Project Engineer
360-778-6288
[email protected]322 N Commercial Street
2nd Floor
Bellingham, Washington 98225
Project Overview:
- Status: Completed September 2021 with riparian planting in March 2022
- Next Steps: Monitor for 10 years to ensure project success
- Construction Contractor: Strider Construction
- Construction Cost: $397,625
Project Benefits
- Improve Levee and Culvert performance and reliability
- Improve Salmon and Riparian Habitat
- Improve Channel and Drainage
Total project costs for the Whatcom County channel realignment project are estimated at $625,000 (design, permitting, and construction)
- 80% funded through a Floodplains by Design grant
- 20% funded by the Flood Control Zone District, Lynden-Everson Subzone, and the City of Lynden
Total project costs for the the US Army Corps of Engineers (USACE) levee improvement project are estimated at $1 million
- 80% funded by the USACE
- 20% funded by the Flood Control Zone District
