Thursday, April 27, 2017

Union Bay Natural Area (UBNA) Wetland Mitigation Work On Hold Till Fall

WSDOT recently published this information:

Update: Short break in Union Bay Natural Area (UBNA) wetland mitigation work due to weather until August

Crews will take a temporary break on the Union Bay Natural Area wetland mitigation project prior to finishing the remaining planting activities in the fall. The mitigation project is nearly complete but record rainfall this spring resulted in some areas of the site being too saturated for planting. Crews will be back onsite to complete the remainder of the planting and trail restoration in early August and expect to complete the project in late August or early September

The SR 520 UBNA Wetland Mitigation Project is a partnership between the University of Washington (UW) and the Washington State Department of Transportation (WSDOT) to create and enhance existing wetlands and replace invasive and non-native plants with native species. The mitigation supports and continues work previously begun by the UW and mitigates for effects from the SR 520 West Approach Bridge North project, currently under construction in the Montlake area. When complete, the UBNA mitigation project will have added and enhanced approximately 22 acres of wetlands and buffer areas at the UBNA site.  
The Union Bay Natural Area (UBNA) is an undeveloped, 74-acre nature reserve and outdoor research laboratory on the north end of Lake Washington’s Union Bay, less than a mile north of SR 520. For many years, the land served as Seattle’s largest garbage dump. After the landfill was closed in 1966, work began to restore the site to a more natural environment. The land, just east of the University of Washington (UW) campus, is now owned by the university and managed by the College of the Environment.

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