May 24, 2024

FM Area Diversion May Construction Update

FARGO, ND (May 24, 2024) – The Metro Flood Diversion Authority has released the May construction update for the FM Area Diversion project at

The U.S. Army Corps of Engineers has now placed 39,000 cubic yards of concrete for the Red River Structure. That’s more concrete than what went into the other two structures – the Diversion Inlet Structure and Wild Rice River Structure – combined. For perspective, it’s enough concrete to fill a dozen Olympic-sized swimming pools.

Among this month’s other construction highlights are:

Southern Embankment: The Corps of Engineers recently awarded contracts for two additional segments of the 22-mile southern embankment. Work began this month on segment SE-1B, where Corps’ contractor HSG Park Joint Venture 2 began stripping topsoil and importing borrow material for county road realignments.

Red River Structure: Ames Construction, the Corps’ contractor for the control structures, completed the majority of the concrete work on the structure’s west abutment and pier and is continuing concrete work on the east side. They also installed embed plates for the structure’s west gate, which is being assembled on site.  

Stormwater Diversion Channel: ASN Constructors surpassed moving 20 million cubic yards on the 30-mile channel. That’s enough to fill the Fargodome more than nine times.

Sheyenne River Aqueduct: Work began on the second of two aqueducts for the project. ASN Constructors is driving sheet piles and H-piles on site.

Channel Crossings: ASN Constructors continues working on many of the 19 crossings, including one at 32nd Avenue West, which is just west of West Fargo. The concrete substructure for the BNSF Prosper Bridge also is taking shape.

Rush River Inlet: Similar to the work they did at the diversion outlet, ASN Constructors is working to strip and excavate the site for the Rush River Inlet to the channel. It will be an open channel excavation with armored rock arch rapids and 23 boulder weirs to guard against erosion.

About the Metro Flood Diversion Authority

The MFDA is a permanent North Dakota political subdivision that is cooperatively implementing the Fargo-Moorhead Area Diversion comprehensive project with the U.S. Army Corps of Engineers. The MFDA works in partnership with the Red River Valley Alliance in a public-private partnership as well as the City of Fargo, City of Moorhead, Cass County, Clay County and the Cass County Joint Water Resource District. More information is available at


For current photos of FM Area Diversion project construction, please contact Amy Wieser Willson at or 218-535-5359.