Ravenna Creek

Ravenna Creek's current source is a wetland in the northwest corner of Cowen Park, at NE 62nd Street and Brooklyn Avenue NE.

Until 2006, the creek ended at a sewer grate where the park's trail system opened into a soccer field.

A daylighting project completed in May 2006[1] disconnected the creek from the sewer system and extended its bed 650 feet (200 m) towards the southeast corner of Ravenna Park, at which point it enters a pipeline.

This pipeline, which runs southward along 25th Avenue NE to the NE 45th Street viaduct, empties into University Slough, thereby reconnecting Ravenna Creek to Lake Washington.

In 2008, a major sewage spill of 8,000,000 US gallons (30,000,000 L) of raw sewage flooded the creek in an accident caused by King County utility crews working nearby.