Mercer Island is connected to the mainland on both sides by bridges carrying Interstate 90, with the city of Seattle to the west and the city of Bellevue to the east. The Lacey V. Murrow Memorial Bridge and the parallel Homer M. Hadley Memorial Bridge are floating bridges that span Lake Washington and carry, respectively, eastbound and westbound lanes of Interstate 90 and connect Mercer Island to the northern portion of Seattle’s South End. I-90 traverses the northern portion of Mercer Island and is then carried from the island to Bellevue over the East Channel of Lake Washington by the East Channel Bridge. Mercer Island is located closer to Bellevue than it is to Seattle, and is therefore often considered to be part of King County’s Eastside.
The western side of the island was home to two Snoqualmie villages prior to white settlement in the Puget Sound region. Mercer Island, named for the Mercer family of Seattle, was first settled by non-indigenous people between 1870 and 1880. The Mercer brothers often rowed between the island and Seattle to pick berries, hunt, and fish. Those brothers, Thomas Mercer and Asa Mercer, were members of the Mercer family of Virginia. The first large settlement, East Seattle, was toward the northwest side of the island—near the McGilvara neighborhood. During 1889, a C C Calkins built a large and gilded resort, the Calkins Hotel. The hotel was reached via steamboat between Madison Park, Leschi Park, and the Eastside. Guests included President Benjamin Harrison, of 1901, amongst other well-to-do dignitaries from Seattle to the East Coast of the United States. Burned by a mysterious fire, the hotel was razed during 1908. The Calkins Landing continued service and presumably aided the establishment of a more permanent population. A denser urban community with business district developed toward the central northern island between the McGilvra neighborhood and Luther Burbank Park. This community now composes the majority of the island’s crest through the Middle Island neighborhood. In 1923, the East Channel Bridge was built to connect the island with Bellevue. In 1930, George W. Lightfoot requested a bridge between Mercer Island and Seattle. The Lacey V. Murrow Memorial Bridge, currently the second longest floating bridge in the world, was built and opened in 1940. In 1989, a second bridge, the Homer M. Hadley Memorial Bridge, was built parallel to the Lacey V. Murrow Memorial Bridge. The East Channel Bridge, Lacey V. Murrow Memorial Bridge, and Homer M. Hadley Memorial Bridge, carry Interstate 90 from Seattle, across Mercer Island, and into Bellevue. The City of Mercer Island was incorporated from East Seattle on July 5, 1960, and comprised all the island minus the 70-acre (280,000 m²) business district. Just over one month later, August 9, the Town of Mercer Island was incorporated from that business district. The two aforementioned municipalities merged as the City of Mercer Island on May 19, 1970.
Luther Burbank Park covers 77 acres (310,000 m²) of land and has 0.75 miles (1.21 km) of waterfront. The park has a public boat dock and fishing pier, a swimming beach, an amphitheater, tennis courts, barbecues and picnic facilities, and an off-leash dog area. The city assumed maintenance of the park on January 1, 2003 from King County, which had purchased the park land in 1969. The Aubrey Davis Park is atop the I-90 tunnel entrances. This park has softball fields, tennis courts, basketball courts, picnic shelters, and the Freeway Sculpture Park. Due to its location atop the I-90 tunnel, the park is also locally referred to as “The Lid.” Pioneer Park covers 113 acres (0.46 km²) and has equestrian, bicycle, and hiking trails. Deane’s Children’s Park, also known as “Dragon Park”, is a small park with playground equipment including a large concrete dragon structure. Clarke Beach is located at the south end of Mercer Island and is home to the annual polar bear swim on New Year’s Day. Mercer Island also has many smaller parks maintained by the city, some of which have waterfront access. In 2010, the city built a well in Rotary Park to supply the area with water in the event of a major disaster, specifically an earthquake.
