Construction

HENDERSON carries out on the ground aquatic restoration efforts originating from and informed by our preliminary site assessments and developed design alternatives.  Our team of professionals have decades of experience managing construction projects focused on habitat enhancement and mitigation efforts.  We’ve completed dozens of construction projects throughout Oregon and Washington, including large wood placements, levee breaching, riparian planting, marshplain lowering, side channel re-connection, tidal habitat restoration, and channel realignment, among others .  We employ best management practices and low impact equipment, limiting negative effects to sensitive aquatic habitats.  Our specialized experience includes working with tidal cycles and transporting equipment via barge.  As a design-build firm specializing in aquatic environments, HENDERSON brings its clients direct expertise in not only effective aquatic habitat restoration, but in matching construction methods with real-world project opportunities, constraints, and available funding.

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Big Eddy Recreation Area Bio-Engineering Demonstration

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Calapooia River Final Design & Construction

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Clackamas Confluence Restoration

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Curtain Creek Wetland Enhancement

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Ecola Creek Estuary & Habitat Restoration

Ecola Creek tidal channel creation and pedestrian trail_bridge

Elk Flats Estuarine Restoration

Elk Flats Backwater Tidal Habitat Creation

Fanno Creek Trail Embankment Stabilization

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Fisher’s Bend Side Channel Habitat Design, Clackamas River

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Karlson Island Tidal Restoration

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Kelley Creek Flood Mitigation & Fish Passage Restoration

Kelley Creek Flood Mitigation and Fish Passage Restoration

Kerry Island Restoration Project

Columbia River North Jetty Lagoon

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Necanicum River Wetland Mitigation Bank

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Oregon Hwy 18 Newberg-Dundee Bypass Phase 1H Wetland Mitigation

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Otter Point Estuarine Habitat Restoration

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Rock Creek Confluence Stream Restoration Design-Build, Clackamas River

Scappoose Creek Habitat Enhancement and Bank Stabilization

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South Fork Klaskanine Dam Removal

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South Fork Necanicum River Fish Passage & Screening Enhancements

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Springbrook Creek Fish & Wildlife Passage & Channel Restoration

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Tanglewood Park Stabilization Project

 tanglewood 2Two River’s Levee Setback & Tidal Wetland Restoration

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Upper Daybreak Sidechannel Resotration

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Wallacut River Confluence Restoration

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Westport Slough Habitat Restoration

Whychus Creek Irrigation Dam Removal & Channel Restoration

Whychus Creek Irrigation Dam Removal and Channel Restoration

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