Staff from the U.S. Army Corps of Engineers, Walla Walla District hoist a new bubbler system onto a vessel for installation on the upstream approach wall at Lower Monumental Dam. This technology cools fish ladder water temperatures to encourage species to continue migrating during spawning. It replaces an older chimney method that, while effective, was significantly more expensive and labor-intensive than the new bubbler system.
| Date Taken: | 05.06.2026 |
| Date Posted: | 06.29.2026 11:41 |
| Photo ID: | 9768345 |
| VIRIN: | 260506-A-GA333-1008 |
| Resolution: | 4528x3016 |
| Size: | 3.44 MB |
| Location: | UMATILLA, OREGON, US |
| Web Views: | 6 |
| Downloads: | 1 |
This work, USACE innovations increase fish survivability on the Snake and Columbia rivers [Image 4 of 4], by Elijah Wittum, identified by DVIDS, must comply with the restrictions shown on https://www.dvidshub.net/about/copyright.
USACE innovations increase fish survivability on the Snake and Columbia rivers
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