WSDOT installing monitoring equipment in Union Bay Natural Area

Beginning as soon as the week of April 15, WSDOT will perform geotechnical investigations in the Union Bay Natural Area (UBNA). Crews will be taking soil samples and installing monitoring well equipment in and around the parking area to study soil and groundwater conditions. The information gathered helps us better understand the composition and characteristics of the ground in this area to prepare for future wetland mitigation work. 

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WSDOT Starts SR520 Related Field Study at Arboretum

The Washington State Department of Transportation will start geotechnical and cultural field studies at the Washington Park Arboretum near the location of the future 520 bridge on August 6, 2012. Complete information can be found at the WSDOT 520 Project webpage. Cultural Resources Fields Study Factsheet Geotechnical Drilling Field Study Factsheet   

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Washington Park Arboretum Mitigation Plan Released by WSDOT

In the 2010 legislative session, a bill was introduced that required the Washington State Department of Transportation, in its efforts to push forward the 520 bridge renovation and replacement, to focus on minimizing and addressing potential impacts to the Washington Park Arboretum.  A group representing the Arboretum Botanical Garden Committee, which advises the University of Washington, City of Seattle and The Arboretum Foundation on the management and stewardship of the Washington Park Arboretum, worked with WSDOT on addressing issues outlined in ESSB 6392.  

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