Decision Memo Completed

Lost horse Supply Ditch Fish Screen

Bitterroot National Forest Ravalli, Montana Bitterroot National Forest All Units

Every year a significant amount of fish enter the supply ditch where flow is diverted from lost horse creek into lost horse supply ditch. this results in significant fish mortality. In order to prevent this, a fish screen should be installed.

Location

South bank of lost horse creek approximately 800 feet downstream from the NFSR 5621 Bridge. GPS locations is N46 6' 1.280160" W114 15' 32.709996

Project timeline

1
Scoping Start
04/13/2023
2
Decision
05/2025 (Estimated)
3
Implementation
06/2025 (Estimated)

NEPA / regulatory detail

Categorical Exclusion32.2 (18), 36 Cfr 220.6(E)(18)
Special AuthorityNot Applicable / Other
Notice and Comment RegulationNot Subject to Regulations
Project ActivityWatershed Improvements
Lost horse Supply Ditch Fish ScreenDecision Signed Date: 05/21/2025
ForestsBitterroot National Forest
DistrictsDarby Ranger District; Sula Ranger District
Legal Land DescriptionNot Applicable
Watershed management