Design

HENDERSON’s highly qualified staff of engineers provide first-rate project designs for regional wetland, tidal, and riverine habitat restoration efforts.  As an established restoration design-build firm, HENDERSON offers experience-based insight to project feasibility, impact analysis, and design that is value-engineered, cost effective, and achievable within budget.  Our design projects include levee construction and removal, estuary-tidal habitat restoration, river and stream channel restoration, wetland mitigation, fish passage, streambank bioengineering, in-stream habitat structures, engineered log jams, tidal brush wrack structures, construction drawings, technical specifications and details, erosion control BMPs, salmon benefit credit analysis, project feasibility analysis, public involvement, and stormwater biotreatment.  HENDERSON’s designs are highly regarded and frequently utilized in the construction of regionally important aquatic restoration projects.

30% design Rock Creek

Big Eddy Recreation Area Bio-Engineering Demonstration

Big Eddy Recreation Area Bio-Engineering Demonstration - Upper Deschutes River

Calapooia River Final Design & Construction

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Fanno Creek Trail Stabilization

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Fisher’s Bend Side Channel Habitat Design, Clackamas River

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Johnson Creek Habitat Assessment & Stream Stabilization

Neskowin Creek Channel Modification

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Otter Point Estuarine Habitat Restoration

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Rock Creek Confluence Stream Restoration Design-Build, Clackamas River

South Fork Klaskanine Dam Removal

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Springbrook Creek Fish & Wildlife Passage & Channel Restoration

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Stone Bridge Replacement & Channel Restoration – Nettle Creek

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Tryon Creek Salmon Habitat Restoration

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Tryon Creek Fish Passage Restoration Alternatives Study

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Tryon Creek Aquatic Habitat Restoration

Tryon Creek Aquatic Habitat Restoration

Tryon Creek Culvert Replacement

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Tryon Creek Sanitary Sewer Trunk Upgrade Stream Bank Stabilization

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Whychus Creek Irrigation Dam Removal & Channel Restoration

Whychus Creek Irrigation Dam Removal and Channel Restoration

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