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P-17 Water Conservation Project
Custer County, Idaho 

The U.S. Bureau of Land Management (BLM), in partnership with the Custer Soil and Water Conservation District, the Idaho Department of Fish and Game, and the Bonneville Power Administration (BPA), is proposing a water conservation and fish habitat enhancement project on the Pahsimeroi River in Custer County, Oregon.  The project would be located on lands managed by the BLM and BPA is proposing to fund the project.
The project would help remove an anadromous fish passage barrier (at the P-17 irrigation water diversion), eliminate conditions that entrain and kill fish in irrigation ditches, and increase summer flows in the Pahsimeroi River by increasing irrigation efficiencies. 

The project would involve replacing the existing P-17 water diversion with a diversion that supports fish passage and installing the following structures: a new headgate structure, 300 feet of ditch,  a fish screen (to be installed about 500 feet downstream of the headgate to prevent fish from continuing down the ditch); a bypass pipe (that would return fish safely to the Pahsimeroi River); and about 3,500 feet of buried pipeline (to convey the fish-screened irrigation water across BLM administered lands to private land for irrigation use).  The river bank at the new diversion site would be reshaped and planted to restore riparian conditions.

To understand the potential environmental impacts of this proposal, the BLM is developing an environmental assessment (EA) following the procedures of the National Environmental Policy Act.  BPA is a cooperating agency in the development of the EA.  The EA will describe anticipated impacts on natural and human resources, as well as mitigation measures to help avoid or minimize impacts. Below is the environmental review schedule:

Scoping comment period                                March 16, 2017 – April 17, 2017
Draft EA comment period                                mid summer 2017
Final EA                                                        late summer 2017
Finding of No Significant Impact (if warranted)   late summer 2017
If decision to build, construction start               fall 2017

BLM conducted public scoping in March and April, 2017 and is now working with BPA in preparing a draft EA for release in mid summer 2017.

For environmental information, contact

Rob Shull                                                                          Toll-free:      800-622-4519
Contract Environmental Protection Specialist                        Direct line:  503-230-3962
FirstTekDOS, LLC                                                              Email:
Bonneville Power Administration - ECF-4
P.O. Box 3621
Portland, Oregon  97208-3621

For project information, contact:

Jennifer Lord                                                                     Toll-free:      800-622-4519
Project Manager                                                                Direct line:  503-230-5192
Bonneville Power Administration - EWU-4                            Email:
P.O. Box 3621
Portland, Oregon  97208-3621

For additional information, please visit the Bureau of Land Management website at: