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Projects

Smith Sage Springs Restoration

Impairment: Loss of wetland/riparian function in critical sage grouse and Arctic grayling habitat; sedimentation and increased temperature.

Proposal: Stabilize active head-cutting to preserve wet meadow upstream; establish new floodplain by regrading headcut area and creating new wetland and stream corridor; fencing.  Phase II will reconnect the entire drainage to the North Fork of the Big Hole.

Benefits: Improved water quality/quantity; fish habitat/connectivity and wetland habitat improvement.

Calendar:

  • Phase 1 completed summer 2024
  • Phase 2 planned summer 2025

Estimated Cost: $243,281.00


Project Description

Smith Sage Springs Creek is a small tributary to the North Fork of the Big Hole River and supports wetlands and riparian vegetation within a mesic setting that serves as habitat for sage grouse (with several active leks located nearby), pronghorn, elk, songbirds, and raptors. The stream also provides habitat for Westslope cutthroat trout and has the potential to provide habitat for fluvial Arctic grayling.  The stream and associated wetlands have been degraded by historical agricultural practices such as vegetation changes caused by grazing and flow modifications associated with irrigation.  Increased flow, when combined with vegetation modifications, is the most probable explanation for headcutting and degradation of wetland and riparian habitat.  The US Fish and Wildlife Service and partners seek to improve and protect fluvial and wetland habitat values of this tributary stream.

Existing Conditions

The stream originates as a series of springs within an expansive sedge wetland complex. Groundwater emerges from the southeast valley margin, creating a large sloped wetland along the south side of the valley. The stream channel is poorly defined, with water periodically flowing overland through the wetland with no channel. The stream then abruptly cascades over a significant, active headcut that is migrating upstream and threatens to impact the sedge wetland complex by lowering the water table. Immediately below the headcut, the stream begins to flow in a relatively straight gully channel that gradually transforms into a more defined, incised channel. Several banks along the gully and channel are eroding laterally as the system forms an incipient floodplain through typical channel evolution processes.

Proposed Improvements

The USFWS and partners propose to stabilize the headcut and address eroding stream banks downstream to protect wetlands and promote growth of woody riparian vegetation.  Restoration will restore hydrologic connectivity with the spring and mesic corridor and improve wetland vegetation species and invertebrates composition. Improving mesic habitat will provide food and water resources for many species including greater sage grouse, sagebrush obligate songbirds, elk, pronghorn and increase forage for livestock.  The project area will be fenced to allow better management of grazing.

Project Status

BHWC has hired Glacier Excavation who will begin construction on August 21, 2023.  Project Monitoring Plan is being reviewed and pre-project erosion assessment has been completed.


People and Organizations Involved

Big Hole Watershed Committee

Southwest Montana Sagebrush Partnership

Montana Fish, Wildlife, and Parks

Private landowners

Funders

United States Fish and Wildlife Service-Montana partners for Fish and Wildlife

Montana Department of Environmental Quality

George Grant Chapter of Trout Unlimited

Trout and Salmon Foundation

Contractors

Confluence Consulting

Glacier Excavating

Project Photos

Final design
Final design
Final design

Project MAP

Status

In Progress

Type

Native Fish

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Big Hole Watershed Committee
P.O. Box 21
Divide, MT 59727-0021
(406) 960-4855

Non-Profit Status
The Big Hole Watershed Committee is a 501(c)3 non-profit organization created to support the communities of the Big Hole River.

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