Southside Flood Protection Red River Channel Extension September 15, 2008

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

1997 Spring Flood – South of Fargo Rose Coulee Red River 25 th Street South Fargo University Drive Moorhead 60 th Ave. SW

Preliminary 100 & 500 Year Floodplains Oxbow Horace Moorhead West Fargo Fargo Interstate Hwy 94 Interstate Hwy 29 Southside Flood Control

Southside Flood Control North Dakota State Climate Office

FEMA levees with and without diversion channels Channel extensions (Red River & drain improvements) Storage inside of project Storage in upstream watershed Project Flood Control Methods

Base Project Southside Flood Control Wild Rice River Levee Alternative

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

CHANNEL EXTENSION AND 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 Southside Flood Control

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

SOUTHSIDE FLOOD CONTROL Wild Rice River Levees Alternative – Red River Impacts

SOUTHSIDE FLOOD CONTROL Wild Rice River Levees Alternative – Red River Impacts

Red River Flood Timing

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

Southside Flood Control Red River Channel Extension Options

Southside Flood Control Technical Committee Preferred Option: North Dakota Alignment

Southside Flood Protection Red River Channel Extension Fly Through

Southside Flood Control Technical Committee Preferred Alignments

1997 Spring Flood – South of Fargo Interstate 29 Cass Co Hwy th Street South

Project Schedule Development of options east of University DriveApril-June 2008 City Commission Selection of preferred base alternative July 14, 2008 Public input meetingsApril 15 - September 2008 Environmental AssessmentJuly – December 2008 Consultant SelectionJuly - December 2008 Begin DesignDecember 2008 CLOMR SubmittalJuly – December 2008 CLOMR ApprovalMarch 2009 ROW AcquisitionsOctober 2008 – October 2009 PermittingSeptember 2008 – April 2009 Special Assessment DistrictSeptember – December 2008 Begin ConstructionJune 2009 Functional CompletionMarch 2011 Final CompletionJuly 2012

Questions / Discussion Southside Flood Control