USACE News - Apr 2021 - Page 7 - Apr 2021

April

18 Apr 2021
FED employees volunteer for international scout troop competition
USAG HUMPHREYS, Republic of Korea – Build a sled, haul your sled, load it with a bunch of gear, navigate a series of tests and tasks as you strive for the highest score among all Scout troops of the Pacific Region in the annual Klondike Derby competition.
16 Apr 2021
Two ERDC researchers give back to Latin American developing communities
Since the start of the new fiscal year, two environmental engineers from the U.S. Army Engineer Research and Development Center’s (ERDC) Environmental Laboratory have contributed their time and expertise as mentors to college-aged students as part of an all-volunteer organization dedicated to improving the health and quality of life of developing communities across Latin America.
16 Apr 2021
ERDC scientist honored with Arthur S. Flemming Award as outstanding federal employee
VICKSBURG, Miss. – Dr. Igor Linkov, senior science and technology manager at the U.S. Army Engineer Research and Development Center’s (ERDC) Environmental Laboratory, has been selected by the George Washington University and Arthur S. Flemming Commission as one of 12 exceptional public servants in 2020.
16 Apr 2021
Pimentel awarded DoD Science, Mathematics, and Research for Transformation (SMART) Scholarship
This month, Sylvia Pimentel, civil engineer at the U.S. Army Corps of Engineers’ Chicago District, was awarded the Department of Defense Science, Mathematics, and Research for Transformation (SMART) Scholarship.

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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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Archive: April, 2021

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22 Apr 2021
USACE Increases Lake Okeechobee Releases to Caloosahatchee
The U.S. Army Corps of Engineers (USACE) Jacksonville District will increase Lake Okeechobee releases at the W.P. Franklin Lock and Dam (S-79) from the current 1,000 cubic feet per second (cfs) to 2,000 cfs beginning April 24.
22 Apr 2021
LOSOM Project Delivery Team Meeting scheduled for May 7
The U.S. Army Corps of Engineers, Jacksonville District, announces a Lake Okeechobee System Operating Manual (LOSOM) Project Delivery Team (PDT) Meeting, to be held Friday, May 7, from 9 a.m. to 3 p.m.
22 Apr 2021
Computational Investigation on Interactions between Some Munition Compounds and Humic Substances
Note: This document was originally published as a journal article or conference proceeding. The link and document will be accessible after a 12-month embargo expires (December 14, 2021 for this document). For more information, see "Frequently Asked Questions on Public Access to Federally Funded Journal Articles" at https://discover.dtic.mil/pdfs/padf/DTIC_FAQs_Public_Access.pdf Abstract: Humic acid substances (HAs) in natural soil and sediment environments affect the retention and degradation of insensitive munition compounds and legacy high explosives (MCs): 2,4-dinitroanisole (DNAN) DNi−NH4+, N-methyl-p-nitroaniline (nMNA), 1-nitroguanidine (NQ), 3-nitro-1,2,4-triazol-5-one (NTO; neutral and anionic forms), 2,4,6-trinitroto-luene (TNT), and 1,3,5-trinitro-1,3,5-triazinane (RDX). A humic acid mode compound has been considered using molecular dynamics, thermodynamic integration, and density functional theory to characterize the munition binding ability, ionization potential, and electron affinity compared to that in the water solution. Humic acids bind most compounds and act as both a sink and source for electrons. Ionization potentials suggest that HAs are more susceptible to oxidation than the MCs studied. The electron affinity of HAs is very conformation-dependent and spans the same range as the munition compounds. When HAs and MCs are complexed, the HAs tend to radicalize first, thus buffering MCs against reductive as well as oxidative attacks.
22 Apr 2021
guiBathy: A Graphical User Interface to Estimate Nearshore Bathymetry from Hovering Unmanned Aerial System Imagery
Abstract: This US Army Engineer Research and Development Center, Coastal and Hydraulics Laboratory, technical report details guiBathy, a graphical user interface to estimate nearshore bathymetry from imagery collected via a hovering Unmanned Aerial System (UAS). guiBathy provides an end-to-end solution for non-subject-matter-experts to utilize commercial-off-the-shelf UAS to collect quantitative imagery of the nearshore by packaging robust photogrammetric and signal-processing algorithms into an easy-to-use software interface. This report begins by providing brief background on coastal imaging and the photogrammetry and bathymetric inversion algorithms guiBathy utilizes, as well as UAS data collection requirements. The report then describes guiBathy software specifications, features, and workflow. Example guiBathy applications conclude the report with UAS bathymetry measurements taken during the 2020 Atlantic Hurricane Season, which compare favorably (root mean square error = 0.44 to 0.72 m; bias = -0.35 to -0.11 m) with in situ survey measurements. guiBathy is a standalone executable software for Windows 10 platforms and will be freely available at www.github.com/erdc.