Known hazards in King County rivers

CAUTION: Boating and river-related recreation is, by its very nature, hazardous and could result in serious bodily injury, damage or loss of equipment, or even death. The decision to accept this risk is entirely your own.

This site is intended to provide general information on boating hazards on King County rivers and is no substitute for skill, knowledge or personal judgment. Prior to making any floating or boating trips on the river, all routes should be scouted from the shore to learn current channel conditions.

Snoqualmie/Skykomish River Basin

• Tolt River: spanning logs and logjam downstream of SR 203 bridge
• Snoqualmie River boating hazard
• Raging River below Preston, multiple logjams

Cedar River

• Spanning log on Cedar River at River Mile 10.4 near Belmondo (April 2013)
• Cedar River landslide blockage, constricted side-channel, and logs

Green River

• Middle Green River - Multiple logjams below Metzler Park takeout
• Green River - logjam blocking Auburn Narrows 

Information important for river users

• Reporting rivers hazards, King County Sheriff's Marine Unit 
• River safety
• Boater safety
• Water safety
• Recreational boating in King County
• Large wood on King County rivers