Washington Arboretum

WSDOT image

Even as its construction is well underway, design plans for the new 520 bridge across Lake Washington continue to spark controversy.

A federal judge will hear oral arguments tomorrow in a lawsuit against the replacement project by the State Department of Transportation and the Federal Highway Administration.

Authorities say vandals have destroyed eight recently planted trees in Seattle's Washington Park Arboretum.

urbanvillages.com

Unless a lawsuit derails the process, a new 520 bridge will soon be built across Lake Washington. 

A company in Aberdeen is already constructing the huge pontoons that will keep the new, 6-lane structure afloat.

And the state is widening the highway on the east side of the lake. 

But exactly what the project will look like on the Seattle side is still being worked out.

Seattle's Board of Park Commissioners will get a briefing on impacts to the Washington Park Arboretum tomorrow night (Thursday).