EBB TIDE: Recovery From the 1997 Flood

Flood Mitigation

The costs of recovery are high, even in communities that experienced relatively minor flood damage. Compared to other towns in the Valley, Moorhead had little damage. Yet, the expenses of repairing dike, sewer, and street damage, together with other mitigation projects to reinforce city services against future floods, carry a price tag that exceeds four million dollars.

 

horn park.jpg (16651 bytes)

Dikes in the Horn Park area, raised for better flood protection, August, 1998. 
Photo courtesy of Moorhead Public Works Division.

 

mitigation.jpg (26039 bytes)

Water control gates, installed to prevent flood waters from inundating the storm sewer system.  Photo courtesy of Moorhead Public Works Division.

 

map mitigation.jpg (82895 bytes)

 

MITIGATION PROJECTS

Construct manhole structures with control gates at two locations on the sanitary sewer system.  Complete failure of these systems would have resulted in sewer back up in over 50% of the community.

Construct manhole structures with water control gates at twelve locations on the storm sewer system.  This will protect the sanitary sewer system from exfiltration of the storm sewer system.

Increase the height of existing flood control levees at Horn Park and Woodlawn Park.  The
Woodlawn Park levee protects over 40 residences and the Horn Park levee protects over 50 residences, and both levees provide infrastructure protection for immediate and adjacent areas.

Install concrete ditch liner and construct control structure in County Ditch 30.  This will provide adequate drainage for over 1100 acres of residential and agricultural land.

Install an earthen berm along County Road 7.   The berm will deter water from backing up into the Village Green Golf course ponds and flooding area homes.

Install chimney seals on sanitary sewer manholes.  Chimney seals will reduce infiltration of storm water in to the sanitary system.

Install isolation valves at houses in the 100-year flood plain.  This will be the only method of preserving the sanitary system during major flooding events.

Raise the lift stations in Oakport Township.   Raising the lift stations will provide protection from high river levels and eliminate the need for sandbagging.

Develop a computer program to provide property and river elevations to residents.  This will allow property owners and city officials to be proactive in flood preparation measures.

TOTAL ESTIMATED COST                 $4,385,00

Moorhead's mitigation projects as outlined in the city's publication
The Flood of 1997: Moorhead Recovers.

 

back.gif (599 bytes)                     forward.gif (616 bytes)

Return to top of page
Return to exhibit table of contents