Upper Klamath Lake Dam (Upper Klamath Lake)

Field Descriptions

Dam Name: Upper Klamath Lake
Other Name: U-3
NID ID: OR00557
Longitude: -121.79333
Latitude: 42.22333
Map Section: T38S/R 9E/Sec 30
County: KLAM
State: OR
Nearest City: NONE
Owner Name: USBR
Owner Type: Federal
Private Dam? No
Core: Homogeneous Dam (Position)
Concrete (Type)
Known (Certainty)
Foundation: RK
Purposes: Irrigation
Year Completed: 1921
Dam Length: 435 feet
Dam Height: 22 feet
Maximum Discharge: 8500 cu ft/sec
Maximum Storage: 873500 acre-feet
Normal Storage: 523700 acre-feet
Surface Area: 85000 acres
Drainage Area: 3800 square miles
Hazard Potential: High
Emergency Action Plan? Yes
Inspection Date: 2006-05-16
Inspection Frequency: 0
State Regulated Dam? No
Spillway Width: 0 feet
Federal Funding Agency: U-3
Source Agency:

Dam Safety For Boats

A large amount of water can be released from a dam without any warning at any time and by any means. For example, when the demand for electricity is high, the turbines at a dam may be turned on automatically, resulting in a significant increase in the downstream flow of water in only a matter of seconds.

If there's a need to release water through the sluiceways (outlets at the base of the dam), this operation can also create a great swell of discharged water downstream.

During flood operations, any or all spillway gates across the width of a dam can be opened to release upstream flood water that needs to pass to the next downstream reservoir. Upstream or downstream, even the most experienced boater with the strongest motor is no match for this strong flow of water plunging over a spillway of a dam. Even if you're boating far downstream of a spilling dam, recirculating current can pull a powerful boat upstream toward plunging water that could shred any boat.

Some dams equipped with navigation locks create turbulent water as well. When vessels pass through, strong flow is released near the exhaust ports of the wing wall of the lock.

Warning Systems At Dams

To warn reservoir users of potential danger, warning devices are installed at many dams:

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