city of fargo, southeast cass water resource district, southside flood protection environmental...
TRANSCRIPT
![Page 1: City of Fargo, Southeast Cass Water Resource District, Southside Flood Protection Environmental Assessment Agency Scoping Meeting December 9, 2008](https://reader036.vdocuments.site/reader036/viewer/2022081519/56649e0d5503460f94af6675/html5/thumbnails/1.jpg)
City of Fargo,Southeast Cass Water Resource
District,
Southside FloodProtection
Environmental Assessment AgencyScoping Meeting
December 9, 2008
![Page 2: City of Fargo, Southeast Cass Water Resource District, Southside Flood Protection Environmental Assessment Agency Scoping Meeting December 9, 2008](https://reader036.vdocuments.site/reader036/viewer/2022081519/56649e0d5503460f94af6675/html5/thumbnails/2.jpg)
1997 Spring Flood –Fargo, Moorhead
Rose Coulee
Red River
Fargo
50th Avenue South
Moorhead
Univ
ers
ity D
rive
![Page 3: City of Fargo, Southeast Cass Water Resource District, Southside Flood Protection Environmental Assessment Agency Scoping Meeting December 9, 2008](https://reader036.vdocuments.site/reader036/viewer/2022081519/56649e0d5503460f94af6675/html5/thumbnails/3.jpg)
1997 Spring Flood – South of Fargo
Rose Coulee
25
th S
treet
South
Cas
s C
o D
rain
53
Fargo
University Drive
![Page 4: City of Fargo, Southeast Cass Water Resource District, Southside Flood Protection Environmental Assessment Agency Scoping Meeting December 9, 2008](https://reader036.vdocuments.site/reader036/viewer/2022081519/56649e0d5503460f94af6675/html5/thumbnails/4.jpg)
1997 Spring Flood – South of Fargo
Cass
Co
Hw
y 81
25th Street S
outhInterstate 29 Rose Coulee
Wild Rice River
Red River
Fargo Moorhead
![Page 5: City of Fargo, Southeast Cass Water Resource District, Southside Flood Protection Environmental Assessment Agency Scoping Meeting December 9, 2008](https://reader036.vdocuments.site/reader036/viewer/2022081519/56649e0d5503460f94af6675/html5/thumbnails/5.jpg)
1997 Spring Flood – South of Fargo
Inte
rstate
29
Wild Rice River
25 th Street SouthSt. Benedict
Cass Co Hwy 16
![Page 6: City of Fargo, Southeast Cass Water Resource District, Southside Flood Protection Environmental Assessment Agency Scoping Meeting December 9, 2008](https://reader036.vdocuments.site/reader036/viewer/2022081519/56649e0d5503460f94af6675/html5/thumbnails/6.jpg)
1997 Spring Flood – South of Fargo
Interstate 29St. Benedict
Cass Co Hwy 16
Wild Rice RiverCass Co Drain 47
![Page 7: City of Fargo, Southeast Cass Water Resource District, Southside Flood Protection Environmental Assessment Agency Scoping Meeting December 9, 2008](https://reader036.vdocuments.site/reader036/viewer/2022081519/56649e0d5503460f94af6675/html5/thumbnails/7.jpg)
• 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.
Southside Flood Control
![Page 8: City of Fargo, Southeast Cass Water Resource District, Southside Flood Protection Environmental Assessment Agency Scoping Meeting December 9, 2008](https://reader036.vdocuments.site/reader036/viewer/2022081519/56649e0d5503460f94af6675/html5/thumbnails/8.jpg)
1997 Spring Flood
Areas InundatedWith Floodwater
andEstimate of Areas
Protected byEmergency Measures
Interstate Hwy 94
Cass Co Hwy 6
Cass Co Hwy 16
Cass Co Hwy 14
Cass Co Hwy 18
Inte
rsta
te H
wy 2
9
Fargo
Oxbow
Horace
Moorhead
West Fargo
Shey
enne
Riv
er
Wild
Ric
e Riv
erRed
Riv
er
Red R
iver
Southside Flood
Control
![Page 9: City of Fargo, Southeast Cass Water Resource District, Southside Flood Protection Environmental Assessment Agency Scoping Meeting December 9, 2008](https://reader036.vdocuments.site/reader036/viewer/2022081519/56649e0d5503460f94af6675/html5/thumbnails/9.jpg)
Preliminary 100 & 500 Year
Floodplains – Red and Wild Rice Rivers
Oxbow
Horace
MoorheadWest Fargo
FargoInterstate Hwy 94
Inte
rsta
te H
wy 2
9
Southside Flood
Control
![Page 10: City of Fargo, Southeast Cass Water Resource District, Southside Flood Protection Environmental Assessment Agency Scoping Meeting December 9, 2008](https://reader036.vdocuments.site/reader036/viewer/2022081519/56649e0d5503460f94af6675/html5/thumbnails/10.jpg)
RED RIVER AT FARGO - USGS GAGING STATIONHISTORICAL FLOOD DATA
0
5,000
10,000
15,000
20,000
25,000
30,000
35,000
1880 1890 1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000
Years of Record
50 Year Discharge - 22,300 CFS
10 Year Discharge - 10,300 CFS
100 Year Discharge - 29,300 CFS
Pea
k D
isch
arge
(CFS)
1997 Spring Flood - 28,000 CFS
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Southside Flood Control
North Dakota State Climate Office
![Page 12: City of Fargo, Southeast Cass Water Resource District, Southside Flood Protection Environmental Assessment Agency Scoping Meeting December 9, 2008](https://reader036.vdocuments.site/reader036/viewer/2022081519/56649e0d5503460f94af6675/html5/thumbnails/12.jpg)
• FEMA levees & floodwalls
• Channel extensions(Red River & drain improvements)
• Floodwater storage inside of project
• Pump stations
• Control structures
Project Flood Control Methods
![Page 13: City of Fargo, Southeast Cass Water Resource District, Southside Flood Protection Environmental Assessment Agency Scoping Meeting December 9, 2008](https://reader036.vdocuments.site/reader036/viewer/2022081519/56649e0d5503460f94af6675/html5/thumbnails/13.jpg)
Base Project
Southside Flood
Control
Wild Rice River Levee
Alternative
![Page 14: City of Fargo, Southeast Cass Water Resource District, Southside Flood Protection Environmental Assessment Agency Scoping Meeting December 9, 2008](https://reader036.vdocuments.site/reader036/viewer/2022081519/56649e0d5503460f94af6675/html5/thumbnails/14.jpg)
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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Wild Rice River Levee Alternative
withChannel Extensions
& Supplemental Storage
Southside Flood
Control
![Page 16: City of Fargo, Southeast Cass Water Resource District, Southside Flood Protection Environmental Assessment Agency Scoping Meeting December 9, 2008](https://reader036.vdocuments.site/reader036/viewer/2022081519/56649e0d5503460f94af6675/html5/thumbnails/16.jpg)
Wild Rice River Levees Alternative – Red River Impacts
![Page 17: City of Fargo, Southeast Cass Water Resource District, Southside Flood Protection Environmental Assessment Agency Scoping Meeting December 9, 2008](https://reader036.vdocuments.site/reader036/viewer/2022081519/56649e0d5503460f94af6675/html5/thumbnails/17.jpg)
Wild Rice River Levee Alternative
Selected Plan
River Stage Changes100 Year Flood
Southside Flood
Control
![Page 18: City of Fargo, Southeast Cass Water Resource District, Southside Flood Protection Environmental Assessment Agency Scoping Meeting December 9, 2008](https://reader036.vdocuments.site/reader036/viewer/2022081519/56649e0d5503460f94af6675/html5/thumbnails/18.jpg)
Preliminary 100 Year Floodplain
Southside Flood
Control
Horace
Inte
rsta
te H
wy 2
9
Interstate Hwy 94
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Preliminary 100 Year Floodplain with Line
of Protection
Southside Flood
Control
Horace
Interstate Hwy 94
Inte
rsta
te H
wy 2
9
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Southside Flood
Control
After Project
Preliminary 100 Year Floodplain
Interstate Hwy 94
Inte
rsta
te H
wy 2
9
Horace
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1997 Spring Flood – Burritt Kennedy, Lemke and Harwood Groves Area
Red River
Fargo Moorhead
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Modifications to Base Project
32nd to 40th Avenue South Pursue primary protection through backyards
South AcresInclude in primary protection alignment
Channel Extension Alignment Chrisan West
Include in primary protection alignment
Maple PrairieInclude in primary protection alignment
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Modifications to Base Project
Mini Bypass (Wild Rice River)Pursue mini bypass alignment
to protect additional properties
Storage Plan & Drain ImprovementsPursue storage along Drain 27
Chrisan EastPursue secondary protection
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Option 1 - River Side Permanent FWOption 1 - River Side Permanent FW32nd to 40th Avenue – Backyard 32nd to 40th Avenue – Backyard OptionsOptions
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Wild Rice River Area Options
Option 1: No Wild Rice River Crossing
Option 2 (Base): Wild Rice River Crossing
Option 3: Mini-Bypass
Option 1 – No Wild Rice River Crossing
Option 2 – Wild Rice River Crossing
Option 3 – Mini-Bypass
![Page 26: City of Fargo, Southeast Cass Water Resource District, Southside Flood Protection Environmental Assessment Agency Scoping Meeting December 9, 2008](https://reader036.vdocuments.site/reader036/viewer/2022081519/56649e0d5503460f94af6675/html5/thumbnails/26.jpg)
STORAGE SUMMARYExisting effective storage 6,000 Acre-Ft
Base project 0 Acre-Ft
Channel extension/storage 2,000 Acre-Ft
Supplemental storage 4,000 Acre-Ft
Southside Flood
Control
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Southside Flood Control
Red River Channel
Extension Options
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North Dakota
Minnesota
Red River
Red RiverChannel
Extension
Typical Red River Cross-Section
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Wild Rice River Levee Alternative
withPreferred
Alignments
Southside Flood
Control
![Page 30: City of Fargo, Southeast Cass Water Resource District, Southside Flood Protection Environmental Assessment Agency Scoping Meeting December 9, 2008](https://reader036.vdocuments.site/reader036/viewer/2022081519/56649e0d5503460f94af6675/html5/thumbnails/30.jpg)
1997 Spring Flood – South of Fargo
Rose CouleeRed River
25th S
treet
Sou
th
Fargo
University DriveMoorhead
![Page 31: City of Fargo, Southeast Cass Water Resource District, Southside Flood Protection Environmental Assessment Agency Scoping Meeting December 9, 2008](https://reader036.vdocuments.site/reader036/viewer/2022081519/56649e0d5503460f94af6675/html5/thumbnails/31.jpg)
Project Schedule – Next Steps
• Environmental Assessment
• Conditional Letter of Map Revision (CLOMR)
• Permitting
• Special Assessment Process
• Development of Final Design
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Questions / Discussion
Southside Flood Control