The Walla Walla District 75th Anniversary

Celebrating 75 years serving the Pacific Northwest and the nation!

The Walla Walla District was established on Nov. 1, 1948.

The Walla Walla District to celebrate its 75th anniversary in November

The U.S. Army Corps of Engineers, Walla Walla District, will be celebrating its 75th anniversary on Nov. 1, 2023.

The district was established on Nov. 1, 1948, just a few years after the completion of the Mill Creek Project.

The land that would become the Walla Walla District was originally part of the USACE Portland District. In the 1940s, several large construction projects were initiated, projects that would go on to become McNary Lock and Dam, Lucky Peak Dam and the four Lower Snake River Dams. All of these activities, plus the future work that was envisioned, prompted a survey in 1947 of several towns, including Pendleton, Tri-Cities, Spokane, Boise, and Walla Walla for the best location of a possible District office.

The City of Walla Walla was ultimately chosen, and, in Nov. 1, 1948, the Walla Walla District was born!

Photos of our projects, then and now!

Featured articles

The end of a long journey: a history of Lower Granite Lock and Dam
It was early in the morning and a steam-powered paddleboat made its way up the lower Snake River, trimmed with colored flags. The date was June 19, 1975, and the mood was festive. The vessel was...
Larger than life: A history of Dworshak Dam
In May 1948, floodwaters on the Columbia River overtopped the cofferdam where construction was underway on McNary Lock and Dam. This flood, one of the largest on record, was one of many documented in...
Waiting in the wings: A history of Little Goose Lock and Dam
By 1962, Ice Harbor Lock and Dam had been built and construction of the second lower Snake River dam, Lower Monumental, was being passed to the US Army Corps of Engineers Seattle District. The third...
'We’ll cross that bridge…': A history of Lower Monumental Lock and Dam
Lower Monumental Lock and Dam sits on a remote stretch of the Snake River, in a landscape of wheat fields and rolling hills. The only town within a 20-minute drive is Kahlotus, Washington, six miles...
From water to watts: A history of Ice Harbor Lock and Dam
Ice Harbor Lock and Dam boasts some of the most cutting-edge hydropower technology in the world. Two advanced technology turbines currently sit in the powerhouse, with a third one on the way. These...
A step towards navigable waters: A history of McNary Lock and Dam
As people moved into the Pacific Northwest, communities grew around the rivers, especially the Columbia and Snake. Back then, the rivers were temperamental and hard to navigate. However, there was a...
Guarding the Treasure Valley: A history of Lucky Peak Dam
Every year, snowmelt from the surrounding mountains flows into creeks and streams that join the Boise River. When flows reach 7,000 cubic feet per second or higher, the river is considered at flood...
Through fair or foul weather: A history of the Mill Creek Project
In 1931, a torrent of brown water roared down Mill Creek, with water levels rising at a rate of one foot per hour. The water escaped the confines of the riverbanks and rushed through the City of Walla...