Client: City of Bothell, Washington
The City of Bothell contracted Clear Creek Solutions to investigate the observed street and private property drainage problems along 35th Avenue SE between 228th Street SE and 240th Street SE and south of 240th Street SE to Monte Villa Parkway
Problem and Purpose of Study
35th Avenue SE floods due to high flows from Cole Woods Creek. The Cole Woods Creek culvert under 35th Avenue SE is undersized, as are the culverts on the east side of 35th Avenue SE/Cole Woods Creek stream crossing south to the intersection at 240th Street SE.
Additional runoff from the hillside on the east side of 35th Avenue SE contribute to the street flooding along and down 35th Avenue SE to 242nd Street SE (Monte Villa Parkway) to a low spot east of 35th Avenue SE.
The purpose of this study is to model existing flooding conditions and provide a solution to alleviate future flooding under full build-out conditions.