 The two-year project included the construction of barriers, culverts, and detention ponds along the shore of Silver Lake, which also gained a pedestrian walkway with interpretive signs.In 2009, the City of Bothell adopted plans to convert the southernmost blocks of SR 527 into a mixed-use boulevard and submitted a request to transfer a section of the highway from the state control.The proposed transfer received the recommendation of the state transportation commission in July 2010 and was passed by the state legislature in April 2011.