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218-6010-15634

Project Abstract 

 

Project Location 

This project is located on Pine Hollow, a tributary to Rock Creek (which flows into the John Day River at Picture Gorge) located approximately 18 miles E-SE of Mitchell and 15 miles due west of Dayville on a property know as the Antone Ranch. The lower 3.4 miles of Pine Hollow is identified by ODFW as spawing and rearing habitat for steelhead.

Project Need

This project will correct two closely spaced passage barriers near the lower end of Pine Hollow. One is an unscreened diversion that requires annual maintenance and construction of a push up damn to extract the water right. The other barrier is a road crossing with a multi thread channel and two perched culverts. 

Proposed Project Work

The diversion will be corrected through the installation of a stream simulation diversion with a concrete headwall. A fish screen will be installed to prevent entrainment. The existing culverts will be replaced with a pre-fabricated steel bridge. Large woody debris will be added to the project area along with 100 riparian plantings. The area around the diversion and fish screen will be fenced to prevent livestock access. 

Project Partners

The project partners are ODFW, the landowner, and US Fish.

Project Completion Report 

Final_Report_15634.pdf

Monitoring Reports

PISR#1_218-6010-15634_6.19.2023.pdf
A rural scene with a rusty shovel in soil, a tilting fence line, and scrub vegetation under a clear sky.
(Before) Old diversion with push-up damn.
A water stream flowing through a concrete structure with a metal gate.
(After) New diversion structure.
A dry trail leading up a hill with sparse vegetation, under a clear blue sky.
(Before) Before Fish screen and flow meter device were installed.
Rural scene with a metal structure possibly for water management, dirt path, dry vegetation, and a hill in the background.
(After) Fish screen and flow measuring device installed.
A small stream flows under a culvert surrounded by bare trees and brush against a clear sky.
(Before) Downstream, before bridge installed.
A stream flows under a bridge with a wooden barrier and guardrails by a rocky embankment.
(After) Downstream, after bridge installation.
A small stream flows through a rocky landscape with bare trees and shrubs under a clear blue sky.
(Before) Before instream grade control riffles were installed.
A rocky creek flowing under a small wooden bridge.
(After) After instream grade control riffles were installed.
A tranquil, sunlit creek with grassy banks surrounded by shrubs and trees.
(Before) Before HD riparian fencing was installed.
A stream of water flows through a grassy area with a metal fence, against a backdrop of trees and a hillside.
(After) Showing HD riparian fencing across creek and large woody structure.
A rural scene with a rusty shovel in soil, a tilting fence line, and scrub vegetation under a clear sky.
A water stream flowing through a concrete structure with a metal gate.
A dry trail leading up a hill with sparse vegetation, under a clear blue sky.
Rural scene with a metal structure possibly for water management, dirt path, dry vegetation, and a hill in the background.
A small stream flows under a culvert surrounded by bare trees and brush against a clear sky.
A stream flows under a bridge with a wooden barrier and guardrails by a rocky embankment.
A small stream flows through a rocky landscape with bare trees and shrubs under a clear blue sky.
A rocky creek flowing under a small wooden bridge.
A tranquil, sunlit creek with grassy banks surrounded by shrubs and trees.
A stream of water flows through a grassy area with a metal fence, against a backdrop of trees and a hillside.