HENDERSON Environmental Design-Build Professionals offer our clients a comprehensive range of natural resource planning, technical assessment, design, permitting, and construction services. HENDERSON provides an exceptional source of project communication, management, and quality assurance for services and products. Representative services are itemized below.
For a current Statement of Qualifications, please click here.
Assessments |
Design |
Permitting |
Construction |
| Fluvial Geomorphology | ACOE Section 408 Levees | Federal, State, and Local Permits | Levee / Dam Removal |
| Hydraulic Analysis | Estuary-Tidal Habitat Restoration | Section 408 Levee / Dam Removal | River and Stream Restoration |
| No-Rise Analysis | River and Stream Channel Restoration | NEPA / SEPA Reviews | Streambank Stabilization |
| Hydrology Monitoring | Wetland Mitigation | Endangered Species Act Compliance | Estuary and Tidal Habitat Restoration |
| Water Resources Assessment | Fish Passage | State Historic Preservation Compliance | Wetland Mitigation and Restoration |
| Natural Habitat Assessment | Streambank Bioengineering | Cultural and Historical Resources Review | Engineered Log Jam Structures |
| Cultural Resources Assessment | In-Stream Habitat Structures | Tribal Resources Coordination | Tidal Brush-Wrack Structures |
| Wetland Delineation and Determination | Engineered Log Jams | Fish Passage Approval | Roughened Channel Construction |
| GPS Resource Survey | Tidal Brush Wrack Structures | NPDES Permit | Culvert Removal |
| GIS Analysis | Construction Drawings | DEQ 1200C Erosion Control Permits | Fish Passage Restoration |
| Technical Specifications and Details | Regulatory Agency Coordination | Certified Erosion Control Installation | |
| Erosion Control BMPs | Value-Engineering | ||
| Salmon Benefit Credit Analysis | Restoration Materials Acquisition | ||
| Project Feasibility Analysis | Cost Estimation | ||
| Public Involvement | Cost-Benefit Analysis | ||
| Stormwater Biotreatment | Invasive Species Control | ||
| Permit Compliance Monitoring | |||
| In-Stream Fish Rescue | |||
| Construction Management | |||
| Construction As-Built Drawings | |||
| Permit Compliance Monitoring | |||
| Revegetation and Site Management |