1. Southside Flood Protection
City of Fargo,
Southeast Cass Water Resource District,
Southside Flood
Protection
Environmental Assessment Agency
Scoping Meeting
December 9, 2008 1

2. 1997 Spring Flood –Fargo, Moorhead
50th Avenue South
Rose Coulee
Red River
University Drive
1997 Spring Flood –Fargo, Moorhead 2

3. 1997 Spring Flood – South of Fargo
University Drive
Rose Coulee
Cass Co Drain 53
25th Street South
1997 Spring Flood – South of Fargo 3

4. 1997 Spring Flood – South of Fargo
Moorhead
Rose Coulee
Interstate 29
25th Street South
Red River
Cass Co Hwy 81
Wild Rice River
1997 Spring Flood – South of Fargo 4

5. 1997 Spring Flood – South of Fargo
25th Street South
St. Benedict
Cass Co Hwy 16
Wild Rice River
Interstate 29
1997 Spring Flood – South of Fargo 5

6. 1997 Spring Flood – South of Fargo
Interstate 29
St. Benedict
Cass Co Hwy 16
Cass Co Drain 47
Wild Rice River
1997 Spring Flood – South of Fargo 6

7. 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, helping to keep our region’s economy healthy.

8. Southside Flood Control
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
Interstate Hwy 29
Horace
Cass Co Hwy 14
Wild Rice River
Sheyenne River
Cass Co Hwy 16
Red River
Oxbow
Cass Co Hwy 18 8

9. Floodplains – Red and Wild Rice Rivers
Interstate Hwy 94
Fargo
West Fargo
Southside Flood
Control
Moorhead
Preliminary
100 & 500 Year
Floodplains – Red and Wild Rice Rivers
Horace
Interstate Hwy 29
Oxbow 9

10. 10

11. Southside Flood Control
North Dakota State Climate Office

12. Project Flood Control Methods
FEMA levees & floodwalls
Channel extensions
(Red River & drain improvements)
Floodwater storage inside of project
Pump stations
Control structures 12

13. Southside Flood Control
Wild Rice River Levee
Alternative
Base Project 13

14. 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 14

15. Wild Rice River Levee Alternative with & Supplemental Storage
Southside Flood
Control
Wild Rice River Levee Alternative with
Channel Extensions
& Supplemental Storage 15

16. Wild Rice River Levees Alternative – Red River Impacts16

17. Southside Flood Control
Wild Rice River
Levee Alternative
Selected Plan
River Stage Changes
100 Year Flood 17

18. Preliminary 100 Year Floodplain
Interstate Hwy 94
Southside Flood
Control
Interstate Hwy 29
Preliminary 100 Year Floodplain
Horace 18

19. Preliminary 100 Year Floodplain with Line of Protection
Interstate Hwy 94
Southside Flood
Control
Interstate Hwy 29
Preliminary 100 Year Floodplain with Line of Protection
Horace 19

20. Preliminary 100 Year Floodplain
Interstate Hwy 94
Southside Flood
Control
Interstate Hwy 29
Horace
After Project
Preliminary 100 Year Floodplain 20

21. 1997 Spring Flood – Burritt Kennedy, Lemke and Harwood Groves Area
Fargo
Moorhead
Red River
1997 Spring Flood – Burritt Kennedy, Lemke and Harwood Groves Area 21

22. Modifications to Base Project
32nd to 40th Avenue South
Pursue primary protection through backyards
South Acres
Include in primary protection alignment
Channel Extension Alignment
Chrisan West
Maple Prairie
Changed the font to match

23. Modifications to Base Project
Mini Bypass (Wild Rice River)
Pursue mini bypass alignment
to protect additional properties
Storage Plan & Drain Improvements
Pursue storage along Drain 27
Chrisan East
Pursue secondary protection
Changed the font to match 23

24. Option 1 - River Side Permanent FW
32nd to 40th Avenue – Backyard Options

25. Wild Rice River Area Options
Option 1 – No Wild Rice
River Crossing
Option 1: No Wild Rice River Crossing
Option 2 (Base): Wild Rice River Crossing
Option 3: Mini-Bypass
Option 2 – Wild Rice
River Crossing
Option 3 – Mini-Bypass 25

26. Southside Flood Control
STORAGE SUMMARY
Existing effective storage 6,000 Acre-Ft
Base project Acre-Ft
Channel extension/storage 2,000 Acre-Ft
Supplemental storage 4,000 Acre-Ft 26

27. Southside Flood Control
Red River Channel
Extension Options 27

28. Typical Red River Cross-Section
North Dakota
Minnesota
Red River
Channel
Extension
Red River
Typical Red River Cross-Section 28

29. Wild Rice River Levee Alternative with
Southside Flood
Control
Wild Rice River Levee Alternative with
Preferred Alignments 29

30. 1997 Spring Flood – South of Fargo
Moorhead
25th Street South
University Drive
Rose Coulee
Red River
1997 Spring Flood – South of Fargo 30

31. Project Schedule – Next Steps
Environmental Assessment
Conditional Letter of Map Revision (CLOMR)
Permitting
Special Assessment Process
Development of Final Design 31 31

32. Southside Flood Control
Questions / Discussion