https://www.nww.usace.army.mil Walla Walla District News RSS Feed en-us Tue, 23 Jun 2026 18:58:04 GMT Sun, 06 Sep 2026 02:19:46 GMT https://www.nww.usace.army.mil/Media/News-Stories/Article/4524330/usace-innovations-increase-fish-survivability-on-the-snake-and-columbia-rivers/ KAHLOTUS, Wash. – Beneath the surface of the Snake River, an ever-changing aquatic environment dictates the survival of some of the region's most iconic wildlife, Pacific salmon and steelhead. To protect these vulnerable species, personnel with the U.S. Army Corps of Engineers, Walla Walla District are deploying innovative “fish bubblers” to combat rising temperatures.<br/> <img src='https://media.defense.gov/2026/Jun/23/2003952952/115/75/0/260506-A-GA333-1007.JPG' alt='A USACE Walla Walla District employee guides a new bubbler onto a boat for installation. The system cools fish ladders during hot summer months, preventing warm surface water from stalling migrating Pacific salmon.' /> <br /> Tue, 23 Jun 2026 18:58:04 GMT Elijah Wittum https://www.nww.usace.army.mil/Media/News-Stories/Article/4524330/usace-innovations-increase-fish-survivability-on-the-snake-and-columbia-rivers/ Walla Walla District, U.S. Army Corps of Engineers Technology All Photos