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					Franks Tract
  Pilot Project




       Don Kurosaka, DWR
       Ajay Goyal, DWR
Agenda

   Background Information
   Pilot Project Alternatives
   WQ Modeling Studies
   Fish Studies
   Project Schedule
   Funding Options
Flooded Island Feasibility Study

   Identified WQ Improvement Potential
   Evaluated Several Alternatives for benefits to:
    –   Water Quality
    –   Ecosystem
    –   Recreation
   Recommendations
    –   Pilot Project to Confirm Benefits
    –   Refine Alternatives
Follow-on Activities

   Evaluated Pilot Project Design Alternatives
   Commenced Monitoring Flow and Salinity in
    Delta
   Initiated Fisheries Studies
Pilot Project Objectives

   Confirm WQ Benefits
   Monitor Impacts of the Project
    –   Fisheries
    –   Recreation
    –   Ecology
   Modify Project Operations to Minimize
    Impacts
FRANKS TRACT
           Pilot Project Alternatives

             Gates in
         Three Mile Slough




                              Gates in
                             False River




                                           Gates in
                            Gates in       Old River
                         Sand Mound Sl.
   Gates in
West False River
                    Gates in
                   Holland Cut
Obermeyer Gates
     Cross Section

 GATE PANEL IN
RAISED POSITION



                     GATE PANEL
                     IN LOWERED
                      POSITION
Preliminary Design – Gated Alternative

                           CONTROL
                          BUILDING &
                         PARKING AREA




                      FALSE RIVER


       GATE
    STRUCTURE
False River Gated Alternative
Elevation of Gated Structure – Looking D/S


                                         CLOSED GATE
                                            PANEL




                 OPEN GATES




   SHEETPILE
  CUTOFF WALL                 CONTROL
                              BUILDING
                                Tidally Averaged EC, SWP
                          800
                                                                           2002 – Dry Year
                                      Base
                                      Three Mile Slough Gate
                                      False River Gate – Closed
                          700
                                      False River Gate – 20 % Open


                          600
Tidal Avg EC (umhos/cm)




                          500




                          400




                          300




                          200
                                                                           Period of Operation
                          100




                            0
                                May          Jun         Jul         Aug      Sep    Oct     Nov   Dec
                                                         2002
                                Tidally Averaged EC, CVP
                          800
                                      Base
                                      Three Mile Slough Gate
                                      False River Gate – Closed
                          700
                                      False River Gate – 20 % Open


                          600
Tidal Avg EC (umhos/cm)




                          500




                          400




                          300




                          200




                          100




                            0
                                May          Jun         Jul         Aug   Sep   Oct   Nov   Dec
                                                         2002
                                Tidally Averaged EC, Old
                                River @ CCWD Intake
                          800
                                      Base
                                      Three Mile Slough Gate
                                      False River Gate – Closed
                          700         False River Gate – 20 % Open


                          600
Tidal Avg EC (umhos/cm)




                          500




                          400




                          300




                          200




                          100




                            0
                                May           Jun         Jul        Aug   Sep   Oct   Nov   Dec
                                                          2002
                                  Tidally Averaged EC, CCWD
                                  Intake @ Rock Sl
                          1,000
                                        Base
                                        Three Mile Slough Gate
                           900          False River Gate – Closed
                                        False River Gate – 20 % Open

                           800



                           700
Tidal Avg EC (umhos/cm)




                           600



                           500



                           400



                           300



                           200



                           100



                             -0
                                  May           Jun         Jul        Aug   Sep   Oct   Nov   Dec
                                                            2002
Three Mile Slough – Tidally Averaged EC:
           June thru Dec, 2002




BASE               THREE MILE SL.
                    MODIFICATON
             Comparison EC Reduction
        September 2002 (Dry Year)

              State        Central     Contra     Contra
              Water Prj.   Valley Prj. Costa WD – Costa WD –
              SWP          CVP         Old River  Rock Slough
West False
                14.3%       10.6%      19.1%       21.1%
River
East Levee
                9.1%        5.4%       16.0%       21.2%
2 Gates
Old River
                6.8%        2.4%       15.7%       19.7%
Holland Cut
Three Mile
                22.6%       18.5%      25.0%       25.1%
Slough
                                 Construction Cost
                                    Summary
                      $80
                                              $65
Construction Cost -




                      $60
                                                             $49
    Millions




                      $40
                               $36

                                                                           $23
                      $20


                      $0
                            WEST FALSE   EAST LEVEE AND    OLD RIVER,   THREE MILE
                              RIVER        TWO GATES      HOLLAND CUT     SLOUGH
Alternative Evaluation

   Conceptual Design
   Value Engineering Study – Mid 2007
DCC/TDF/FT Salmon Smolts
Outmigration Studies

   Pilot Study – Dec 2006-Jan 2007
   Regional Fish Study - Fall 2007
                                    PROJECT SCHEDULE
               2007
VE Study

               2007   2008
EIR/EIS


                      2008   2009
Final Design/
Permits


                             2009    2010   2011
Construction


                                     2010   2011   2012   2013   2014
Monitoring
Pilot Project Budget              (2006 dollars)


Alternatives Eval. & Value Eng.        $1M

EIR/EIS and Permits                    $2M

Monitoring Program (5 years)           $5M
Final Design                           $3M

Construction (Least Expensive Alt.)    $ 24 M

Construction Management                $3M

Total                                  $ 38 Million
Project Funding Options

   Funding Strategy
    –   1/3rd from State Funds
    –   1/3rd from Federal Funds
    –   1/3rd from Water Users (SWP, CVP, CCWD)

				
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posted:3/4/2012
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