Boulevard. History Washington Park was developed on land that had been logged by the Puget Mill Company for sixty years. In 1920, the parcel was split in two. The eastern 200 acres (0.8 km2) were developed as the Broadmoor Golf Club by a group of businessmen that included E. G. Ames, general manager of Puget Mill. The western 230 were given to the city, who developed a park and arboretum on the site. On the basis of the agreement approved by the University of Washington (Board of Regents) and the City of Seattle (City Council/Mayor), The Washington Park Arboretum was established in 1934. Highway impacts Ghost ramps State Route 520 has a set of ghost ramps in the marshlands the arboretum. They are often referred to as "ramps to nowhere". However, one ramp is currently used for the on ramp to SR 520 Eastbound. The others are unused. They were originally part of a plan to build the R. H. Thomson Expressway which would have cut through the arboretum and down through Seattle towards the I-90/I-5 interchange. Citizens rallied a freeway revolt against the plan on May 4, 1969. Construction near the Arboretum later continued but citizen protest eventually won out and the plan was dropped in 1971. The freeway revolt that stopped the R. H. Thomson Expressway had its origins in opposition to SR 520 itself. Architect Victor Steinbrueck, writing in 1962, objected to the "naked brutality of unimaginative structures such as this proposed crossing of Portage Bay, which eliminates fifty houseboats while casting its shadow and noise across this tranquil boat haven." In 2013 the Washington State Department of Transportation announced plans to dismantle the ghost ramps. To commemorate the ramps and protest their demolition, a local art collective created an installation, Gate to Nowhere, on one of the ramps in 2014. The piece consists of a layer of reflective acrylic wrapping a pair of support columns. In the spring of 2016, some of the SR 520 ghost ramps have begun to be dismantled to make way for the construction of a new causeway linking the new floating bridge to the mainland. Modern plans The potential impact of plans to reconstruct and expand State Route 520 and replace the Evergreen Point Floating Bridge in the early 2010s have raised concerns among Arboretum staff and park users. As the members of the Arboretum community noted in their collective letter