Spirit Lake Tunnel Intake Gate Replacement and Geotechnical Drilling Project
Replace the original intake gate at Spirit Lake Tunnel; conduct geotechnical drilling to more accurately determine safe conditions for existing and possible future alternate outflow systems to control water levels in Spirit Lake.
Project Summary
Current Status:
Completed
Location Summary:
Spirit Lake is located north of Mount St. Helens and east of the Johnston Ridge Observatory on WA-504 E within the Mount St. Helens National Volcanic Monument.
Project Milestones:
| Milestone | Date |
|---|---|
| Scoping Start | 10/01/2019 |
| Comment Period | 12/17/2019 |
| Objection Period Start | 04/07/2020 |
| Decision | 03/2021 (Estimated) |
| Implementation | 03/2021 (Estimated) |
Expected Analysis Type:
Environmental Assessment
Special Authority:
Not Applicable / Other
Lead Management Unit:
Mount St. Helens National Volcanic Monument
Notice and Comment Regulation:
218 (2013) Non-HFRA
Project Purpose:
Facility Management; Special Area Management
Project Activity:
Facility Maintenance; Special Area Management
Project Decision Information
Spirit Lake Tunnel Intake Gate Replacement and Geotechnical Drilling Project
Decision Signed Date: 03/16/2021
Forests:
Gifford Pinchot National Forest
Districts:
Mount St. Helens National Volcanic Monument
States:
Washington
Counties:
Skamania
Legal Land Description:
Not Applicable
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Chris Strebig
42218 N.E. Yale Bridge Rd.
Amboy, WA 98601
360-891-5052
chris.strebig@usda.gov
Last Updated: 3/23/2021