Decision Memo Completed

USGS Lahar Monitoring Station Installation

Gifford Pinchot National Forest Klickitat; Skamania, Washington Mt Adams Ranger District

A monitoring and alert system is needed to mitigate lahar hazards for communities in the area, including Trout Lake. USGS proposed to install 5 new monitoring stations.

Location

Upper White Salmon River drainage

Project timeline

1
Scoping Start
06/29/2023
2
Decision
11/2024 (Estimated)
3
Implementation
04/2025 (Estimated)

NEPA / regulatory detail

Categorical Exclusion32.2 (3), 36 Cfr 220.6(E)(3)
Special AuthorityNot Applicable / Other
Notice and Comment RegulationNot Subject to Regulations
Project ActivitySpecial Use Authorizations; Research And Development
Mount Adams Lahar Monitoring Stations InstallationDecision Signed Date: 11/25/2024
ForestsGifford Pinchot National Forest
DistrictsMt Adams Ranger District
Legal Land DescriptionNot Applicable
Special use managementResearch