USACE News - Page 61

February

17 Feb 2021
Structural engineer recognized as ‘Modern-Day Technology Leader’
NASHVILLE, Tenn. (Feb. 17, 2021) – Officials honored a structural engineer with the U.S. Army Corps of Engineers Nashville District as a “Modern-Day Technology Leader” during the 35th Black Engineer of the Year Awards’ Technology Recognition Ceremony Feb. 12 in Detroit, Michigan.
17 Feb 2021
Rough River Lake staff tests out new shoreline stabilization method
The U.S. Army Corps of Engineers Louisville District Rough River Lake staff is testing out new shoreline stabilization methods at the North Fork Beach in McDaniels, Kentucky.
16 Feb 2021
Memory, flexibility drive Lake Okeechobee dry season strategy
When we developed the dry season water management strategy for Lake Okeechobee this year, we incorporated crucial flexibility to respond to the potential threat of algal blooms while also remembering the events over the last several years. We use these two concepts, memory and flexibility, to guide our strategy development.
16 Feb 2021
The Corps Environment - February 2021 issue now available
The February 2021 edition of The Corps Environment is now available! This edition highlights proactively considering environmental consequences and acting accordingly, in support of Environmental Operating Principle #2.

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RT @ArmyERDC: Tune in this morning to Beyond the Gates to hear Brent Towne, research civil engineer with the Geotechnical & Structures Lab,…

Every year, our Seattle District clears tons of debris from the Puget Sound and its tributaries. But what happens to that material after they’ve been salvaged? Learn more: https://t.co/4YSlQgM4VS

RT @USACERockIsland: When U.S. Army engineers are called to deploy for critical infrastructure support overseas, a Forward Engineer Support…

Moments ago, during his state of the state address, WA Gov. Bob Ferguson discussed recent atmospheric rivers in the region and USACE contributions to the response. We were honored to stand with our partners in supporting the life, health and safety of all those affected. https://t.co/8jjslN6BlN

RT @USACESacramento: Along the Yuba River, you may encounter Daguerre Point Dam, a low-head dam. Low-head dams may be dangerous for waterwa…

RT @USArmy: 2026 Big Army updates are coming. Tune in to our YouTube channel tomorrow at noon EST to watch our special Army event. https:…

RT @ArmyERDC: ERDC is supporting the innovative use of Pacific Northwest timber in the construction of barracks at @JBLM_PAO. By leveraging…

The Jan. 7 Los Angeles County wildfires debris removal operation was one of our largest, most challenging missions. More than 1,400 USACE personnel deployed from across the nation and from our district to support debris removal operations. /6

But we did not do this alone. The success of this important mission was the result of strong partnerships with FEMA, Cal OES, LA County, local governments and impacted communities. /5

To date, USACE has removed more than 2.6 million tons of debris — the equivalent of more than 218,000 truckloads. /4

We are proud of our efforts, alongside our partners, to rapidly come to the aid of our fellow citizens in their time of need. In just six months, more than 9,500 properties were cleared — making this the fastest, large-scale wildfire debris removal in USACE history. /3

After the devastating Los Angeles wildfires in January 2025, the U.S. Army Corps of Engineers was laser-focused on removing immediate hazards to public health and safety, and supporting economic recovery by removing structural ash, debris and foundations. /2

This week marks one year since the January 2025 Southern California wildfires began. On Jan. 17, the U.S. Army Corps of Engineers began its debris removal mission, which was a critical step in the road to recovery. https://t.co/iF1yZ5D6CP

The U.S. Army Corps of Engineers announced today the publication of the 2026 nationwide permits in the Federal Register. Learn more: https://t.co/3IzyxdqV3P

USACE will reissue 56 existing nationwide permits & issue one new permit for work in wetlands & other waters that are regulated by Section 404 of Clean Water Act and/or Section 10 of Rivers & Harbors Act of 1899. One existing permit will not be reissued: https://t.co/NhihR0uoAM

RT @USACE_Buffalo: 🛥️ Dredging keeps our waterways safe & sustainable! 🌱 Learn how the U.S. Army Corps of Engineers repurposes clean sedim…

RT @ArmyERDC: ERDC is providing innovative support to @USACENOLA civil works mission by inspecting the dewatered bays for voids in the Old…

RT @USArmy: 📆 Soldiers, mark your calendars for the Senior Leader SITREP, premiering on our YouTube channel, Jan. 13 at 12:00 p.m. https://…

RT @StPaulUSACE: Happy New Year! As we welcome 2026, let’s make water safety a top priority. Let’s make 2026 the safest year yet by practic…

Happy New Year! As we welcome 2026, let’s make water safety a top priority. 🛟Always wear your life jacket and make sure its fits 🛟Learn how to swim 🛟Never drink and boat Practice water safety every time you are in, on, or near the water! #LifeJacketsWornNobodyMourns

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News Releases

16 Nov 2020
Magnetorheological Composite Materials (MRCMs) for Instant and Adaptable Structural Control
Abstract: Magnetic responsive materials can be used in a variety of applications. For structural applications, the ability to create tunable moduli from relatively soft materials with applied electromagnetic stimuli can be advantageous for light-weight protection. This study investigated magnetorheological composite materials involving carbonyl iron particles (CIP) embedded into two different systems. The first material system was a model cementitious system of CIP and kaolinite clay dispersed in mineral oil. The magnetorheological behaviors were investigated by using parallel plates with an attached magnetic accessory to evaluate deformations up to 1 T. The yield stress of these slurries was measured by using rotational and oscillatory experiments and was found to be controllable based on CIP loading and magnetic field strength with yield stresses ranging from 10 to 104 Pa. The second material system utilized a polystyrene-butadiene rubber solvent-cast films with CIP embedded. The flexible matrix can stiffen and become rigid when an external field is applied. For CIP loadings of 8% and 17% vol %, the storage modulus response for each loading stiffened by 22% and 74%, respectively.
16 Nov 2020
Publication Notification: Distribution of the Two-Point Product of Complex Amplitudes in the Fully Saturated Scattering Regime
Abstract: This Letter considers probability density functions (pdfs) involving products of the complex amplitudes observed at two points (which may, in general, involve separations in space, time, or frequency) in conditions of fully saturated scattering. First, the pdf is derived for the product of the complex amplitude at one point with the conjugate of the complex amplitude at another point. It is shown that the real and imaginary parts of this product each have a variance gamma pdf. Second, expressions are derived for several joint pdfs involving complex amplitude products and powers at two points.
16 Nov 2020
Publication Notification: Fort McCoy WWII Buildings and Landscapes
Abstract: The U.S. Congress codified the National Historic Preservation Act of 1966 (NHPA) mostly through the National Register of Historic Places (NRHP), which requires federal agencies to address their cultural resources. Section 110 of the NHPA requires federal agencies to inventory and evaluate their cultural resources, and Section 106 requires them to determine the effect of federal undertakings on those potentially eligible for the NRHP. This report provides a World War II development history and analysis of 786 buildings, and determinations of eligibility for those buildings, on Fort McCoy, Wisconsin. Evaluation of the WWII buildings and landscape concluded that there are too few buildings with integrity to form a cohesive historic district. While the circulation patterns and roads are still intact, the buildings with integrity are scattered throughout the cantonment affecting the historic character of the landscape. Only Building 100 (post headquarters), Building 656 (dental clinic), and Building 550 (fire station) are ELIGIBLE for listing on the NRHP at the national level under Criterion A for their association with World War II temporary building construction (1942-1946) and under Criterion C for their design, construction, and technological innovation.
16 Nov 2020
USACE Vicksburg District announces lake level and seasonal recreation closures at Sardis Lake
VICKSBURG, Miss. – The U.S. Army Corps of Engineers (USACE) Vicksburg District has closed several boat ramps and restroom buildings at Sardis Lake due to seasonal timelines and current lake levels.