Fargo Flood Control

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Fargo Flood Control Southside
Flood Protection Landowner Meeting, South
Acres June 17, 2008
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Fargo
Moorhead
25th Street South
University Drive
Rose Coulee
Red River
1997 Spring Flood South of Fargo
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Fargo
Moorhead
Interstate 29
Rose Coulee
Frontier
25th Street South
Red River
Cass Co Hwy 81
Wild Rice River
1997 Spring Flood South of Fargo
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Fargo
Interstate Hwy 94
West Fargo
Southside Flood Control
Moorhead
Preliminary 100 500 Year Floodplains
Horace
Interstate Hwy 29
Oxbow
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Southside Flood Control

• Provide Protection from overland flooding that
  threatens the majority of properties south of
  I-94.
• Prevent extensive expansion of South Fargo
  Floodplain and mandatory flood insurance
  requirement.
• Provide growth area for Fargo, helping to keep
  our regions economy healthy

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Project Flood Control Methods

• FEMA levees with and without diversion channels
• Channel extensions
• (Red River drain improvements)
• Storage inside of project

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Issues Raised With Base Alternatives

• Red River Wild Rice River impacts (Higher flood
  levels)
• Lost storage (Concern storage impact will simply
  move impacts upstream)
• Properties east of Hwy 81 and upstream receive no
  protection

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Southside Flood Control
Wild Rice River Levee Alternative
Base Project
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Southside Flood Control
STORAGE SUMMARY Existing effective storage
6,000 Acre-Ft Base project 0
Acre-Ft Channel extension/storage 2,000
Acre-Ft Supplemental storage 4,000
Acre-Ft Upstream dams 75,000 Acre-Ft (External
storage)
STORAGE
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Southside Flood Control
Wild Rice Levee Option With Red River Channel
Extension Options
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North Dakota
Minnesota
Red River Channel Extension
Red River
Typical Red River Cross-Section
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Southside Flood Control
Levees east of Cass Co. Hwy 81
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SOUTHSIDE FLOOD CONTROL
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Southside Flood Control
Preliminary 100 Year Floodplain
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Southside Flood Control
Wild Rice Levee Option Including Mini-Bypass
Alternative
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76th Avenue
Cass Co Hwy 81
1997 Spring Flood South of Fargo
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Project Schedule
Development of options east of University Drive April-June 2008
City Commission Selection of preferred base alternative June 30, 2008
Public input meetings April 15 - August 2008
Environmental Assessment July December 2008
Consultant Selection July - August 2008
Begin Design August 2008
CLOMR Submittal July September 2008
CLOMR Approval December 2008
ROW Acquisitions September 2008 October 2009
Permitting September 2008 April 2009
Special Assessment District September December 2008
Begin Construction June 2009
Functional Completion March 2011
Final Completion July 2012
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Southside Flood Control
Comment Sheet
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Southside Flood Control
Questions / Discussion
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Fargo
Interstate Hwy 94
Southside Flood Control
West Fargo
Red River
Moorhead
Cass Co Hwy 6
1997 Spring Flood Areas Inundated With
Floodwater and Estimate of Areas Protected
by Emergency Measures
Horace
Interstate Hwy 29
Cass Co Hwy 14
Wild Rice River
Sheyenne River
Cass Co Hwy 16
Red River
Oxbow
Cass Co Hwy 18
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Southside Flood Control
North Dakota State Climate Office
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Southside Flood Control
Wild Rice River Levee Alternative
Base Project with Channel Extensions
Recoverable Storage
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SOUTHSIDE FLOOD CONTROL
Wild Rice River Levees Alternative Red River
Impacts
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Fargos History of Growth
1940 - 3,365 Acres 1960 - 7,309 Acres 1980 -
18,809 Acres 2000 - 24,009 Acres 2008 - 29,847
Acres
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Southside Flood Control
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Fargos Future Growth
Projected Future City Limits for Fargo
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National Flood Insurance Program

• 100-year flood- used by FEMA to define regulatory
  floodplain
• Property in 100-year floodplain is considered
  high-risk
• Insurance rates for high-risk properties 1,200
  to 1,500 annually

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Fargo
Interstate Hwy 94
West Fargo
Southside Flood Control
Moorhead
Preliminary 100 Year Floodplain
Horace
Interstate Hwy 29
Oxbow
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National Flood Insurance Program

• Insurance is required if
• You carry a federally backed mortgage and
• your home or business is in a high risk area -
  such as
• 100-year floodplain
• Special Flood Hazard Area or SFHA
• Area flooded by 1 annual chance flood
• Flood Zones A, AE, A1-30, AO, AH

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Southside Flood Control
Rapid Deploy Emergency Protective Facilities
Betafence
Geocell Systems, Inc.
Hydro-Solutions, Inc.
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Southside Flood Control
Rapid Deploy Emergency Protective Facilities
Hydro Response Ltd
Infrastructure Defense Technologies
Independent Flood Defense Products
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Interstate Hwy 94
Southside Flood Control
28,200
400
2,000
1,600
26,200
200
1997 Spring Flood Estimate of Flood Flows (Flow
in CFS)
Interstate Hwy 29
10,000
15,600
500
1,100
10,450
300
900
1,900
13,150
13,300
11,850