Three Mile Falls Dam Fish Counts
Three Mile Falls Dam is located at river mile three on the Umatilla River. The dam was constructed in the early 1900s and serves as an irrigation dam that is a complete barrier to fish migrating upstream. In order to successfully migrate past the dam, all adult salmon and steelhead must use the fish passage facility located on the east side of the dam. The fish facility consists of a fish ladder, viewing window, fish trap and holding pond. Every adult salmon and steelhead heading upstream is counted at this facility using a combination of trapping and video tape enumeration. When the facility is in trapping mode, fish are sampled for biological data, collected for hatchery broodstock, or hauled and released upriver during times of inadequate passage in the lower river. The facility is run through a cooperative project by The Confederated Tribes of the Umatilla Indian Reservation and by the Oregon Department of Fish and Wildlife.
The facility counts summer steelhead from September through May, spring Chinook from April through July, fall Chinook from August through December, and coho from September through December.
For any additional questions please contact Bill Duke, fish passage biologist with the Oregon Department of Fish and Wildlife, at 541-276-2344.
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See historic fish counts at Three Mile Falls Dam
2022/2023 Monthly Counts (pdfs)
Coho 2022
Coho 2023
Spring Chinook 2023
Fall Chinook 2022
Fall Chinook 2023
Steelhead 2022
Steelhead 2023
- January 2023
- February 2023
- March 2023
- April 2023
- May 2023
- September 2023
- October 2023
- November 2023
- December 2023
2021/2022 Monthly Counts (pdfs)
Coho 2021
Spring Chinook 2022
Spring Chinook 2021
Fall Chinook 2021
Steelhead 2022
Steelhead 2021
- January 2021
- February 2021
- March 2021
- April 2021
- May 2021
- September 2021
- October 2021
- November 2021
- December 2021
2019/2020 Monthly Counts (pdfs)
Coho 2020
Coho 2019
Spring Chinook 2020
Spring Chinook 2019
Fall Chinook 2020
Fall Chinook 2019
Steelhead 2020
- January 2020
- February 2020
- March 2020
- April 2020
- May 2020
- September 2020
- October 2020
- November 2020
- December 2020
Steelhead 2019
2018/2019 Monthly Counts (pdfs)
Steelhead 2018-2019
2017/2018 Monthly Counts (pdfs)
Coho 2018
Coho 2017
Spring Chinook 2018
Spring Chinook 2017
Fall Chinook 2018
Fall Chinook 2017
Steelhead 2018
Steelhead 2017
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Current conditions and opportunities to fish, hunt and see wildlife. Updated weekly by fish and wildlife biologists throughout the state.