Flood Risk Management: Fargo-Moorhead Metropolitan Area

U.S. Army Corps of Engineers, St. Paul District
Published April 17, 2025
Updated: April 17, 2025
Col. Eric Swenson speaks at a podium

Col. Eric Swenson, U.S. Army Corps of Engineers, St. Paul District commander, speaks during a dedication ceremony in Fargo, North Dakota, Oct. 27. Swenson joined Michael Conner, Assistant Secretary of the Army for Civil Works; Sen. John Hoeven, (ND); members of the U.S. Army Corps of Engineers, St. Paul District; Metro Flood Diversion Authority; city of Fargo; and city of Moorhead, Minnesota, to commemorate the completion of the Diversion Inlet Structure, the first major federal component of the flood diversion project, that will reduce flood risks to nearly 260,000 citizens within the Fargo-Moorhead Metro Area and 70 square miles of infrastructure.

Woman speaks at a podium

Terry Williams, U.S. Army Corps of Engineers, St. Paul District program manager in charge of the Fargo-Moorhead Metropolitan Area Flood Risk Management project, speaks during the National Academy of Construction banquet in Boston, Oct. 13.

A construction site

Corps of Engineers continues construction at the Red River Structure

An inlet structure with three gates seen from around 100 feet.

The almost completed Diversion Inlet Structure, one of the three components of the Fargo, North Dakota/Moorhead, Minnesota Flood Risk Management Project's southern embankment system taken Aug. 29, 2023. USACE photo by Shannon Bauer

A red crane lifts a Tainter gate at a construction site

A crane lifts a Tainter gate into place at the U.S. Army Corps of Engineers, St. Paul District, Wild Rice Structure near Horace, North Dakota, Sept. 19. The gate is one of two that will be installed at the structure, which is a key component of the Fargo, North Dakota/Moorhead, Minnesota Metro Area Diversion project. Once the project is complete, it will reduce flood risk to more than 235,000 people within the region.

A construction site with a large concrete structure.

The U.S. Army Corps of Engineers, St. Paul District, rerouted the Wild Rice River through the Wild Rice River Structure March 31. Rerouting the Wild Rice River was a major milestone for the Fargo, North Dakota/Moorhead, Minnesota Flood Risk Management Project. After three years of construction, Ames Construction, Inc., permanently diverted the Wild Rice River through a gated concrete structure, a project first. This reroute will allow Ames to complete construction of a dam embankment across the existing Wild Rice River channel.

Location

Fargo, North Dakota, and Moorhead, Minnesota, are on the west and east banks, respectively, of the Red River of the North and approximately 150 miles south of the Canada-U.S. border. The Wild Rice, Sheyenne, Maple and Rush rivers in North Dakota and the Buffalo River in Minnesota also cross the project area.

Background

The Fargo-Moorhead metropolitan area is a major health, education, cultural and commercial center. The area is prone to flooding. The Red River of the North has exceeded the National Weather Service flood stage of 18 feet in 60 of the past 122 years (1902 through 2024), with seven of the top 10 floods occurring in the last 30 years. A 500-year event would flood nearly the entire city of Fargo, a large portion of the city of Moorhead, and several smaller communities in the area. Flooding occurs from not only river levee breaching but also large rainfall events that overwhelm storm drainage systems. Average annual flood damages are estimated at approximately $238 million. Although emergency flood fights have been very successful, the area has a significant risk of catastrophic flooding.

Status

The project is a 30-mile, 20,000-cubic foot per second diversion channel in North Dakota with upstream staging. A feasibility study was initiated in 2008 and completed in 2011. A Record of Decision was signed April 3, 2012. The Metro Flood Diversion Authority, the city of Fargo, North Dakota, and the city of Moorhead, Minnesota, are the nonfederal sponsors. The Project Partnership Agreement, executed on July 11, 2016, and amended March 2019, limits the federal cost share to $750 million plus inflation. The total project cost is currently estimated to be $2,891,771,000.

This is the first U.S. Army Corps of Engineers (USACE) project to use a Public Private Partnership (P3). Nonfederal construction of the diversion channel using a P3 began in August 2022. USACE is designing and constructing the 22-mile Southern Embankment and three large, gated control structures. The first federal contract was awarded on Dec. 6, 2016, for the Diversion Inlet Structure; construction began in spring 2017. Construction of the Wild Rice River Structure; the I-29 Grade Raise; the Red River Structure; the Drayton Dam Fish Passage Mitigation Project; Southern Embankment Reaches SE-1B, -2A, -2B, -3, -4, and -5; and the Drain 27 Native Plantings contracts are also ongoing. Construction of the Southern Embankment Reach SE-1 and the Drain 27 Wetland Restoration Project was completed in 2022. USACE is also working on documentation required to operate the project, including the Water Control and Operations and Maintenance Manuals.

The project received $437,000,000 via the Bipartisan Infrastructure Law, 2022 (Public Law 117-58), to complete and fiscally close out the project

Authority

This project is authorized under the Water Resources Reform and Development Act of 2014; this project received start/construction funding in the fiscal year 2016 work plan.

Funding

Federal funding received fiscal years 2016 to 2024          $750,049,996


Final Supplemental EA

News Releases

Corps of Engineers celebrates the completion of its Drayton Dam project
9/11/2024 UPDATED
ST. PAUL, Minn. – The U.S. Army Corps of Engineers, St. Paul District, will celebrate the completion of its Drayton Dam Fish Passage Mitigation Project with a dedication ceremony at 1 p.m., Sept. 25,...
Corps awards $42.2 million contract for the Fargo-Moorhead diversion project
3/12/2024 UPDATED
ST. PAUL, Minn. – The U.S. Army Corps of Engineers, St. Paul District, awarded a $42.2 million contract to R.J. Zavoral & Sons, Inc. of East Grand Forks, Minnesota, yesterday, March 11, to complete...
Corps awards $13.2 million contract for the Fargo-Moorhead diversion project
2/28/2024 UPDATED
ST. PAUL, Minn. – The U.S. Army Corps of Engineers, St. Paul District, awarded a $13.2 million contract to HSG Park Joint Venture 2, LLC of Harvey, North Dakota, yesterday, Feb. 27, to complete the...