Innovate + Protect

Our Services

Our team of civil engineers, scientists, landscape architects, and planners integrate across disciplines to deliver complete client solutions. We are a teaching and learning culture and stand as responsible stewards of our environment.

Stormwater Design

Aquatic Ecology

Stormwater Permit Support

Watershed Planning

Sea Level Rise & Coastal Restoration

Watershed and Floodplain Management

River, Wetland, and Coastal Restoration

Ecological Surveys and Monitoring

NEPA/SEPA, ESA & Environmental Permitting

Sustainable Site Development

Waste and Materials Management

Remediation and Reclamation

Climate Change Adaptation and Resiliency

 

GeoSpatial Science

Modeling and Data Analysis

Unmanned Aerial Systems

Research and Advanced Monitoring Applications

Our Expertise

Environmental Science

Civil Engineering

Permitting and Compliance

Landscape Architecture

Featured Projects

All Projects →

Seattle South Transfer Station Phase II Design Completion

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City of Alhambra Green Street Feasibility Study

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Cambie Corridor Integrated Water Management Plan

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Wyoming AML Small Hard Rock Site Remediation

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Shannon Point Shoreline Improvements

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Pressentin Park Side Channel Restoration and Recreational Improvements

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Puget Sound Shore Friendly Program Support

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City of Kenmore Integrated Aquatic Vegetation Management Plan

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Silver Beach Creek Water Quality Retrofit

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Hidden Lake Dam Removal

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Pacific Lumber Stormwater Conveyance and Treatment

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Leachate Pump Station Upgrades at Cedar Hills Regional Landfill

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Latest News

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  • CASQA Conference ReCap
    Thursday November 16th by Lily Schreder
    In September, Herrerans Kate Forester, Christina Merten, Chris Webb, Dylan Ahearn, John Lenth, Craig Doberstein, Olivia Wright, Stacy Luell, and Rob Zisette attended the California Stormwater Quality Association (CASQA) Conference in San Diego, CA. The purpose of this conference is to advance sustainable stormwater management and protect California's water resources.…

  • LOCH-TOBER: The Final Chapter
    Tuesday October 31st by Lily Schreder

  • LOCH-TOBER Continues with Vancouver Lake
    Wednesday October 25th by Melissa Buttin