Oregon /
Coffenbury Lake
Lake in Oregon · 64 acres · near Hammond
Coffenbury Lake has 1 boat ramp listed as public.
Past algal blooms
Harmful algal blooms reported on this water (state reports compiled by U.S. EPA): 2017.
state reports compiled by U.S. EPA · checked October 18, 2026
Boating rules
- 10 mph limit (entire lake) · all of Coffenbury Lake rule
From the boating rules map of Oregon State Marine Board (rules zones joined to our waters and launches; not endorsed by OSMB), read October 18, 2026. A map of rules is a guide: the regulation's text and the posted signs govern.
Launches
- Fort Stevens State Park Boat Ramp · Boat ramp · near Hammond