Environment

Members of a dam inspection team from the U.S. Army Corps of Engineers, Omaha District, finish inspecting the intake structure of the Branched Oak Dam located north of Lincoln, Nebraska, June 2, 2025. The intake structure controls the amount of water released through the dam. A periodic inspection of the dam is conducted every five years to identify potential defects and to ensure the dam is functioning as designed. The dam is one of 10 Salt Creek dams that work together to reduce flood risk for the city of Lincoln and surrounding communities. USACE PHOTO BY DELANIE STAFFORD

Tributary Dams Help Provide Flood Risk Reduction, Saving Millions in Damages

At A Glance: Omaha District Reservoir Impacts The Portfolio: 35 tributary reservoirs with federally authorized flood control storage space. Geographic Scope: Spans multiple Upper Midwest and western states within the Missouri River Basin. Interagency Cooperation: Integrates water resource projects owned […]

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Aerial photo of Albeni Falls Dam, located in Oldtown, Idaho. Authorized for construction under the Flood Control Act of 1950, in response to the 1948 flood that swept over the river valleys of the Columbia Basin. The operating project's authorized purposes include flood risk management, hydropower generation, navigation, fish and wildlife conservation and recreation. USACE PHOTO BY NICOLE CELESTINE

Albeni Falls Dam: Cutting Red Tape to Rebuild Infrastructure

At A Glance: Albeni Falls Dam Modernization Project: Comprehensive 11-gate spillway replacement program. Location: Albeni Falls Dam on the Pend Oreille River in Oldtown, Idaho. Contract Value: $20,395,700 awarded to permanently replace legacy 1950s steel components. Execution: Designed by the

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U.S. Army Corps of Engineers Pittsburgh District lock staff install rebar for concrete slab repairs in C.W. Bill Young Lock and Dam’s land wall on the Allegheny River, New Kensington, Pennsylvania, March 25, 2026. USACE PHOTO BY ANDREW BYRNE

Old Locks, New Parts: Medium Capacity Fleet Performs Repairs at C.W. Bill Young Lock and Dam

At A Glance: C.W. Bill Young Lock Maintenance Asset: C.W. Bill Young Lock and Dam (Lock No. 3), a legacy 1934 navigation facility. Location: Allegheny River, Pennsylvania. Executing Team: USACE Medium Capacity Fleet, a specialized multi-discipline regional maintenance crew. Primary

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USACE Publishes Notice of Proposed Deauthorization List of Water Resources Projects in the Federal Register

At A Glance: Proposed Water Projects Deauthorization The Directive: Notice published in the Federal Register targeting inactive “ghost projects” for cancellation. The Legal Framework: Mandated by Section 301 of the Water Resources Development Act (WRDA) of 2020, amended by WRDA

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ERDC and U.S. Forest Service Make Historic Agreement to Accelerate Forest Capabilities

At A Glance: Forest Intelligence Modernization The Agreement: Historic partnership between USACE ERDC and the U.S. Forest Service (USFS). The Tech: Artificial Intelligence (AI) and Machine Learning (ML) powered by high-performance computing. Data Scale: Uses “ground truth” from 355,000+ plots

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Clearing the Past to Protect the Present: Inside USACE’s Military Munitions Response Program

At A Glance: Military Munitions Response Program The Mission: Locating and removing unexploded ordnance and chemical residues from former defense sites. The Team: A multidisciplinary approach uniting geophysicists, chemists, risk assessors, and explosive safety experts. Technology: Utilizing Advanced Geophysical Classification

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Fluorescence

Photostability Breakthrough: USACE Researchers Develop “Long-Lasting” Fluorescent Dye

At A Glance: Fluorescent Innovation The Problem: Photobleaching causes fluorescent dyes to fade quickly, limiting sensor life. The Solution: Covalent ferrocene conjugation acts as a molecular “circuit breaker.” Durability: The new dye lasts 11 times longer than standard dyes (693

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Obstacles Abound with Dams, Drought and Dinner – Diadromous Fish Migrating Through South Carolina

At A Glance: The Great Migration Species: American shad, Blueback herring, and Striped bass. The Obstacle: Predator swarms of Bald eagles, pelicans, and cormorants. The Solution: The St. Stephen fish lift, passing 500,000+ fish annually. Economic Bonus: The Rediversion Project

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