Klamath - B. JC Boyle Dam to Powerhouse


Klamath, Oregon, US

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B. JC Boyle Dam to Powerhouse (JC Boyle bypass)

Usual Difficulty IV+ (for normal flows)
Length 5 Miles
Avg. Gradient 100 fpm

JC Boyle bypass


JC Boyle bypass
Photo by Josh Strange taken 09/15/02



River Description

This is the bypass reach between the JC Boyle Dam and Powerhouse, and you'll be lucky to catch this run with water in it. It only happens when the reservoir is spilling, but when that occurs this run makes a great five mile run with more challenging whitewater and dramatic scenery than the Hell's Corner run downstream. When it has water, this rarely-boated upper section makes a great extension to the Hell's Corner run.

There are nine distinct Class IV rapids in this section, some of which are as much as a half mile in length. At the higher flows of 1300 and 1600 cfs there are numerous play features to catch on the fly as well as several play spots with eddy service. The long rapids with steep horizon lines provide plenty of entertainment for river runners. Overall, this reach has a creek-like appearance in a basalt canyon with ponderosa pines.

American Whitewater worked with Pacificorp, local boaters, and outfitters to coordinate a flow release study on this reach during summer 2002. Hopefully we'll see the day when the river once again provides boating opportunities and improved conditions for the native fishery.


StreamTeam Status: Not Verified
Last Updated: 2002-11-15 00:57:16

JC Boyle bypass

Detail Trip Report  JC Boyle bypass  Klamath, OR(50.38KB .jpeg)

Rapid on the Klamath

Detail Trip Report  Rapid on the Klamath  Klamath, OR(74.71KB .jpeg)

Rapid on the Klamath

Detail Trip Report  Rapid on the Klamath  Klamath, OR(99.35KB .jpeg)

Manslide, low water

Detail Trip Report  Manslide, low water  Klamath, OR(102.77KB .jpeg)

JC Boyle Dam spill

Detail Trip Report  JC Boyle Dam spill  Klamath, OR(60.85KB .jpeg)

Horizon Line, Manslide

Detail Trip Report  Horizon Line, Manslide  Klamath, OR(90.29KB .jpeg)

Manslide, upper section

Detail Trip Report  Manslide, upper section  Klamath, OR(85.50KB .jpeg)

Manslide, lower section

Detail Trip Report  Manslide, lower section  Klamath, OR(84.71KB .jpeg)


Gauge Information

Gauge Description:

Visual, when spilling. Look for flows of 1000 to 3000 cfs. Flows around 1500 cfs are optimal. Flow can be determined by the difference between Copco Reservoir Inflow and JC Boyle Powerhouse release (800-547-1501).

Report - Reports of Klamath B. JC Boyle Dam to Powerhouse and related gauges

Reports give the public a chance to report on river conditions throughout the country as well as log the history of a river.

Reports

When River/Gauge Subject Level Reporter
9y151d19h30m Klamath [OR] JC Boyle bypass n/a Thomas O'Keefe

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Rapid Descriptions

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 B. JC Boyle Dam to Powerhouse , Klamath Oregon, US (mobile)