Port of Seattle On-Call Wetland and Water Resources Support Services

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The Port of Seattle plays a key role in bringing international trade, transportation, and travel to the Pacific Northwest. Established in 1911, the Port now manages a five-year capital improvement program of $1.5 billion. It continues to develop, expand, and rehabilitate its cargo and passenger seaport and airport facilities, including Seattle Tacoma International Airport (STIA), the nation’s 17th busiest airport. To better meet increasing demands, the Port sought to construct a third runway at STIA, posing complicated environmental permitting challenges.

ESA is working with the Port to ensure compliance with all environmental requirements necessary for the runway expansion. ESA prepared detailed summaries of environmental impacts and mitigation associated with permit compliance; assessed wetlands and reviewed vegetation and hydrologic monitoring data to support our determinations; developed mitigation plans; recommended adaptive management/corrective actions at mitigation sites; conducted in-stream habitat surveys; reviewed design plans for proposed stormwater improvements; and provided construction monitoring of mitigation efforts.

For nearly five years, our field support team, expert project management, and proven relationships with federal, state, and local regulatory agencies have worked to navigate complex permitting challenges to support the Port’s operations.

Specialized Services

  • Habitat evaluations
  • Mitigation monitoring and reporting
  • Monitoring
  • Stormwater management
  • Wetland assessments

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