Wolf Water Resources, Inc.

Working with Nature, Partnering with People.

Website

About the firm

Wolf Water Resources, Inc. (W2r) is a Portland, Oregon-based water resources and environmental engineering practice specializing in ecosystem restoration, watershed planning, and urban stream resiliency. It integrates geomorphology, hydrology, biology, and hydraulic engineering, bringing scientists and engineers together to collaborate directly on every project. W2r works across diverse environments from coastal estuaries to mountain streams throughout Oregon and Washington, serving local governments, state and federal entities, tribal organizations, watershed councils, and fisheries groups.

Team
Small
Firm type
Environmental Engineering · Water / Wastewater Engineering · Land Surveying

People

Marjorie WolfePresident

Curtis LoebPrincipal Engineer

Amanda (AJ) JonesPrincipal Engineer

Joe RudolphPrincipal Ecologist

Mike "Rocky" HrachovecPrincipal Engineer

Rowyn Cooper-CaroselliWater Resources Engineer

Terril StevensonSenior Geomorphologist

Nora BoylanSenior Hydrologist/Geologist

Steven RodriguezSenior Water Resources Engineer

Colin ThorneRiver Scientist

Natalie HoltEcological Sciences Director

Tom JosephsonSenior Ecosystem Scientist

Skye ThomasProfessional Land Surveyor

Capabilities

Ecosystem Restoration

Service website

Restores river and floodplain habitats from alpine streams to coastal estuaries by integrating geomorphological processes, hydraulic engineering, and ecological sciences.

  • Floodplain Reconnection and Enhancement

    Restores natural hydrological connections between rivers and their adjacent floodplains to revive wetland and riparian ecosystems.

  • River Channel and Creek Realignment

    Designs natural, dynamic channel configurations that restore ecological function and sediment transport processes.

  • Levee Modification and Removal

    Deconstructs or sets back constraining levees to expand active floodplains and reduce systemic flood risks.

  • Fish Passage Improvement

    Removes migration barriers and designs bio-engineered structures to reopen historic spawning and rearing habitats.

  • Stage 0 Restoration Design

    Implements valley-scale, process-based designs to reconstruct complex, multi-threaded stream networks.

Urban Stream Resiliency

Service website

Enhances stream corridor durability in developed environments through floodplain connectivity rather than imposing rigid, stable forms on naturally dynamic systems.

  • Urban Floodplain Connectivity

    Integrates natural flood storage and drainage into built environments to accommodate dynamic stream processes safely.

  • Infrastructure Resilience Planning

    Helps municipal agencies protect utility crossings, bridges, and roadways while minimizing impacts on stream corridors.

  • Urban Stream Rehabilitation

    Restores ecological functions and stability to channelized, degraded urban waterways using bio-engineered methods.

Watershed Planning

Service website

Applies remote sensing, prioritization models, and landscape-scale planning to integrate restoration, flood risk reduction, and habitat objectives across regional basins.

  • Remote Sensing and Multispectral Data Collection

    Uses drone and aerial imagery to map and analyze physical and biological conditions across extensive river corridors.

  • Restoration Action Prioritization

    Combines river-process science with spatial data to rank and target conservation investments for maximum watershed benefit.

  • Fire Resiliency Planning

    Develops land and water management strategies to mitigate wildfire risks and restore post-fire river systems.

  • Hydrologic and Hydraulic Modeling

    Performs advanced computer simulations to evaluate water flow, sediment transport, and flood risks under varying scenarios.

Floodplain Regulation Support

Service website

Assists clients in navigating complex floodplain management policies, local ordinances, and federal compliance standards.

  • CLOMR and LOMR Applications

    Prepares and submits technical data to FEMA for Conditional Letters of Map Revision and Letters of Map Revision.

  • Flood Hazard Mitigation

    Analyzes flood risks and designs passive protection measures for communities and adjacent infrastructure.

Environmental Regulatory Support

Service website

Coordinates design and environmental permitting with local, state, and federal agencies to secure approvals for complex restoration works.

  • USACE Permitting

    Secures regulatory approvals for levee modifications, wetland impacts, and in-water construction from the US Army Corps of Engineers.

  • Agency Consultation and Permitting

    Manages environmental review processes and coordinates multi-agency compliance for watershed projects.

Effectiveness Monitoring and Studies

Service website

Tracks and evaluates physical and biological outcomes of restoration projects to support long-term adaptive management.

  • Low-Tech Process-Based Restoration Monitoring

    Assesses the performance and structural evolution of low-tech, process-based restoration interventions over time.

  • Vegetation Response and Re-incision Studies

    Monitors riparian planting success, invasive species re-establishment, and stream channel stability thresholds.

  • Drone Imagery Data Collection

    Captures high-resolution aerial data to track geomorphic and vegetative changes across project footprints.

Industries

Government · Federal · Water Resources · Stormwater & Flood Control · Natural Resources · Environmental & Remediation

Projects

Steigerwald Floodplain Reconnection

Washougal, WA · Water Resources · 2023 · Client: Lower Columbia Estuary Partnership

Project details

As the largest single floodplain restoration in the Pacific Northwest to date, this project reconnected nearly 1,000 acres of floodplain habitat at the Steigerwald National Wildlife Refuge on the Columbia River. W2r led a 10-firm consulting team through multiple design, permitting, and construction phases to remove over two miles of existing levee, reconnect Gibbons Creek and its alluvial fan, and reduce flood risks for neighboring industrial properties, the local city, and the state highway by approximately five-fold.