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

Calapooia River Embankment Stabilization and Channel Restoration_post-construction

Fanno Creek Trail Stabilization


Fisher’s Bend Side Channel Habitat Design, Clackamas River


Johnson Creek Habitat Assessment & Stream Stabilization

Neskowin Creek Channel Modification


Otter Point Estuarine Habitat Restoration


Rock Creek Confluence Stream Restoration Design-Build, Clackamas River

South Fork Klaskanine Dam Removal

South Fork Klaskanine River_hatchery diversion post constuction

Springbrook Creek Fish & Wildlife Passage & Channel Restoration


Stone Bridge Replacement & Channel Restoration – Nettle Creek


Tryon Creek Salmon Habitat Restoration


Tryon Creek Fish Passage Restoration Alternatives Study


Tryon Creek Aquatic Habitat Restoration

Tryon Creek Aquatic Habitat Restoration

Tryon Creek Culvert Replacement


Tryon Creek Sanitary Sewer Trunk Upgrade Stream Bank Stabilization


Whychus Creek Irrigation Dam Removal & Channel Restoration

Whychus Creek Irrigation Dam Removal and Channel Restoration

Website Design by BOING