Mushroom farm? Park? Oh, the possibilities for this Seattle tunnel

File photograph of the Battery Street Tunnel in Seattle during the viaduct’s semiannual inspection in 2009. Credit: Washington State Department of Transportation

A mini design competition, titled Recharge the Battery, brought a rich collection of ideas for reusing the tunnel presented in September at a neighborhood space called Block 41 in Belltown. …Over 40 display boards showed how the underground structure could be put to work. Some of them believe it could be a great place for a park, a thrill ride, or maybe a combination of the two.

Source: Mushroom farm? Park? Oh, the possibilities for this Seattle tunnel