USDA � NRCS - Oklahoma

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					USDA – NRCS - Oklahoma
    Red River Valley Association
            16th Annual
Regional Water Resource Conference
       November 17th, 2010
          Wichita Falls, TX
USDA – NRCS - Oklahoma


   Update of NRCS
Activities in Oklahoma
USDA – NRCS - Oklahoma


    Farm Bill Activities
     USDA – NRCS - Oklahoma
Program                                  Dollars    Acres

Environmental Quality Incentives      $8,879,907   170,024
Program (EQIP)
Wildlife Habitat Incentives Program     $48,438       930
(WHIP)*
Conservation Security Program (CSP)   $3,375,328   219,867
Grassland Reserve Program (GRP)          $23,326       148
Wetland Reserve Program New           $1,235,550       925
Easements (WRP)
Floodplain Easements                   $756,000      2,142
   USDA – NRCS - Oklahoma
                 Planning

• 3 sites complete
• Total Planning Funds - $ 490,000
   USDA – NRCS - Oklahoma
               Construction

• 7 sites funded for construction
• Regular Funding         $ 836,100
• Stimulus Funding        $7,545,000
   USDA – NRCS - Oklahoma
                  Repair

• 12 projects in Red River Valley
• Stimulus Funding       $1,259,000
   USDA – NRCS - Oklahoma
                   EWP

• 2 events in Red River Valley
• 3 Counties
• $1.35 million total
   A Tale of Two Dams
Cottonwood Creek Sites 15 and 54
        A Tale of Two Dams
• Acknowledgements
  – Oklahoma Conservation Commission
    • Mark Harrison, Information Officer, OCC
       – The True Cost of Unrestrained Development
  – Watershed Sponsors
    • Kingfisher and Logan County Conservation
      Districts
  – NRCS Planning and Design Staffs
Cottonwood Creek
    Kingfisher, Logan,
     Canadian, and
        Oklahoma
 15     Counties



                         54
Cottonwood 15
     Cottonwood Creek
         Kingfisher, Logan,
          Canadian, and
             Oklahoma
      15
             Counties


16
17
                              54
Cottonwood 15
Cottonwood 15
Cottonwood 15
Cottonwood 15
Cottonwood 15


         House
             Cottonwood 15

• What is a Design Engineer to do?
  – Can’t go up with the dam
  – Can’t go wider with the Auxiliary Spillway
  – Cost prohibitive to go over the top
  – Decommission (remove the dam)
Cottonwood
     15




             Cavalry Creek Site
             6
Cottonwood Creek
    Kingfisher, Logan,
     Canadian, and
        Oklahoma
 15
        Counties



                         54
Cottonwood 54
Cottonwood 54
Cottonwood 54
                         Cross-Section of Typical
                     Floodwater Retarding Structure



                                          Auxiliary Spillway Crest



                                                Embankment

Sediment Pool         Inlet     Principal
                              Spillway Crest
                                                   Principal Spillway Conduit



       Slide gate
     (Valley Floor
        Drain)
                                      Natural Ground


 Sediment storage prevents loss of detention capacity for life of structure
                         Cross-Section of Typical
                     Floodwater Retarding Structure



                                          Auxiliary Spillway Crest



  Aerated Sediment                              Embankment

                      Inlet     Principal
Sediment Pool                 Spillway Crest
                                                   Principal Spillway Conduit



      Slide gate
    (Valley Floor
       Drain)
                                      Natural Ground


Aerated Sediment accounts for sediment accumulation in the Detention
                                Pool
                        Cross-Section of Typical
                    Floodwater Retarding Structure



                                         Auxiliary Spillway Crest
  Detention Pool

 Aerated Sediment                              Embankment

                     Inlet     Principal
Sediment Pool                Spillway Crest
                                                Principal Spillway Conduit



     Slide gate
    (Valley Floor
       Drain)
                                     Natural Ground

         Detention storage is the functioning portion of the lake
                         Cross-Section of Typical
                     Floodwater Retarding Structure



 Freeboard Storage                        Auxiliary Spillway Crest
  Detention Pool

 Aerated Sediment                               Embankment

                      Inlet     Principal
Sediment Pool                 Spillway Crest
                                                  Principal Spillway Conduit



     Slide gate
    (Valley Floor
       Drain)
                                      Natural Ground


   Freeboard or “surcharge” storage accounts for depth of flow in the
                               spillway
Cottonwood 54
Land Rights
(Real Property Rights)


                         Sediment
                           Pool
Cottonwood 54
             Cottonwood 54
• What’s the Design Engineer to do here?
  – Can’t go up with the dam
  – Can’t go wider with the Auxiliary Spillway
  – Can go down, utilize the sediment pool
  – Can go to court
A Tale of Two Dams - Conclusions
• There are 2107 Small Flood Control Dams
  in Oklahoma
• Development will continue
• These issues must be resolved to keep
  the dams safe, thereby continuing to
  provide protection to the citizens of
  Oklahoma
• There is a “True Cost of Unrestrained
  Development”
Questions?

				
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