Welcome to the Institute for Water Resources Website 

The U.S. Army Corps of Engineers (USACE) Institute for Water Resources (IWR) was established to provide forward-looking analysis, cutting-edge methodologies, and innovative tools to aid USACE’s Civil Works program.

IWR strives to improve the performance of the USACE water resources program through analysis of emerging water resources trends and issues; development, distribution, and training in the use of state-of-the-art methods and models in the areas of planning, operations, and civil engineering; and national data management of results-oriented program and project information across Civil Works business lines. In addition to implementing this vision throughout core mission areas, IWR oversees seven Centers that provide targeted technical expertise and support.

ALEXANDRIA, Va. (March 15, 2023) – The Climate Risk Informed Decision Analysis (CRIDA) methodology, has been translated into French and Arabic, increasing global acceptance of the U.S. Army Corps of Engineers (USACE) Institute for Water Resources climate change adaptation tool. Pictured is an edited combined cover of the French and Arabic translations.
ALEXANDRIA, Va. (Feb. 23, 2023) – The Institute for Water Resources (IWR) has named its best of the best during their annual awards ceremony. The U.S. Army Corps of Engineers’ field operating activity held the recognition during a townhall honoring employees for their contributions and accomplishments across all IWR Centers. IWR Director, Dr. Joe Manous, pictured top of image, congratulated the winners, thanking them for their dedication and achievements.
ALEXANDRIA, Va. (Oct. 12, 2022) – The U.S. Army Corps of Engineers' Institute for Water Resources takes part in discussion on Africa’s water challenges with six Malagasy ministries and government agencies on the development of sustainable, practical steps Madagascar can take to improve its water security in a two-day workshop in Antananarivo, Madagascar. Click to read more...
ALEXANDRIA, VA – (Oct. 27, 2022) Implementing nature-based engineering solutions is a growing field, but it’s not yet a mainstream practice. The U.S. Army Corps of Engineers (USACE) and the Rijkswaterstaat, Dutch Ministry of Infrastructure and Water Management are hoping to change that.
ALEXANDRIA, Va. (Oct. 13, 2022) -- Stanford Gibson (center), Cameron Ackerman (second from right) and Alex Sanchez (far right), senior hydraulic engineers from the U.S. Army Corps of Engineer - Institute for Water Resources, Hydrologic Engineering Center delivered training in Roorkee, India from Sept. 26-29 on their modeling and simulation software, known as HEC-RAS (River Analysis System).
Did you know IWR is now on LinkedIn? We plan on regularly sharing information and updates including publication and software announcements, USACE news, IWR job postings, photos, and more! Please take a moment to visit and follow our page!


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Learn More about IWR

Screenshot of the Youtube video: Securing the Nation's Future through Water

(2 page Article, Faircount Media Group 2020/2021)

Watch Securing the Nation's Future through Water, 
an overview of USACE's relationship to the nation's water resources. 

IWR Mission Areas

IWR Centers

IWR Partner Organizations