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Bel Marin Keys V Wetland Restoration

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Goal

Restore 1,600 acres of former agricultural land into a resilient landscape of tidal marsh, seasonal wetlands, alkali meadows, and uplands, supporting wildlife habitat, protecting surrounding communities, and advancing large-scale climate adaptation.

Approach

WRA partnered with the State Coastal Conservancy to guide the first phase of construction and ensure restoration success. Our team:

  • Oversaw construction of new wetlands and a flood control levee.
  • Provided environmental compliance, biological monitoring for sensitive species, and public outreach.
  • Conducted annual vegetation surveys, hydrology monitoring, and adaptive management.
  • Designed hydrology improvements, managed invasive species, and coordinated grazing to promote native plants.
  • Supported levee inspections, erosion repairs, and pump station maintenance.
  • Advised the U.S. Army Corps of Engineers design team for Phase 2, including sediment management planning, regulatory coordination, and resilient hydrology design.

Impact

Phase 1 established thriving wetland habitat and a foundation for long-term restoration. Ongoing monitoring and adaptive management ensure these wetlands continue to improve in ecological function. Insights from Phase 1 are directly shaping Phase 2, which restores nearly 1,000 acres of tidal marsh while reducing long-term maintenance needs. Together, these efforts represent one of the largest tidal wetland restorations in the region.

Experts

Project Specifics

Status

Construction began in late Summer 2019 with the construction of the levees that will mark the new edge of San Pablo Bay and is ongoing.

Detailed Services

Biological Monitoring
Environmental Compliance
Permitting for Construction and Site Maintenance
Strategic Support for Lands Interfacing with Abutting Residential Development
Wetland Construction Oversight
Wetland Monitoring and Adaptive Management Implementation
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