Ice Age Floods Playground

Over 13,000 years ago, ice age glaciers and floods carved out the landscape throughout the Pacific Northwest. Fast forward to today, a beautiful playground on the North Bank of the Spokane River pays homage to the events that formed the region. Coffman performed civil, structural, and electrical engineering, along with land surveying for the new Ice Age Floods Playground in Riverfront Park in Spokane, Washington. The project includes an approximately one-acre Great Missoula Floods themed playground, complete with play structures, a splash pad, skate park, and basketball courts. Associated improvements include an approximate 130 stall parking lot, a 6,000 sf maintenance building with a wall that is used as part of the skate park bowl, restroom facilities, and rehabilitation of park shelters from Expo 74’.

Engineering services included detailed splash pad recycled water and drains meeting the Department of Ecology standards for safety and clean water with a special connection to the City of Spokane sewer system for cleaning and overflow. In addition, special decorative site lighting design was provided for the replacement of fixtures at the existing 1974 Expo shelters, adjoining Centennial Trail system, as well as parking, payway, and special playground lighting features.

The result is a one of a kind playground that combines the natural history and beauty of the park with a fun, playful atmosphere that families can enjoy for years to come.


  • Civic & Local Government


  • Civil Engineering
  • Electrical Engineering
  • Land Surveying
  • Structural Engineering