Columbia Snake River System - 2012 Routine Maintenance Schedule
Annually, the U.S. Army Corps of Engineers closes the eight locks and dams on the Columbia Snake River System (CSRS) for routine inspections, maintenance and repairs. This is a planned annual event and lasts approximately two weeks. Details for the projects are as follows:
| Project | Closes | Reopens | Scheduled Activity |
|---|---|---|---|
| Bonneville | 6:00am, March 6 | 11:59pm, March 20 | Inspection of downstream mitre gate cracks |
| The Dalles | 6:00am, March 6 | 11:59pm, March 20 | Routine inspections and maintenance |
| John Day | 6:00am, March 6 | 11:59pm, March 20 | Routine inspections and maintenance |
| McNary | 6:00am, March 6 | 6:00pm, March 20 | Routine inspections and maintenance |
| Ice Harbor | 6:00am, March 6 | 6:00pm, March 27 | Replacement of downstream gate cables |
| Lower Monumental | 6:00am, February 27-March 2 |
6:00pm, February 27-March 2 6:00pm, March 27 |
Phase III of concrete wall repairs to monolith 15 (prep time occurs 2/27-3/2) |
| Little Goose | 6:00am, March 6 | 6:00pm, March 27 | Routine inspections and maintenance |
| Lower Granite | 6:00am, March 6 | 6:00pm, March 27 | Routine inspections and maintenance |
PNWA works closely with the Corps and navigation stakeholders to minimize impacts on river users during these annual closures, and we continue to advocate for the highest levels of funding to ensure the reliability of navigation in the Northwest. For more information, contact Page Phillips at 503-234-8550 or page.phillips@pnwa.net.
Supporting Materials
USACE Portland District website
USACE Walla Walla District website
PNWA supported Corps projects
Columbia Snake River System fact sheet
