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Tucannon River Model Watershed

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					Tucannon River Watershed
Vision
Provide a healthy ecosystem with abundant,
productive, and diverse populations of
aquatic and terrestrial species that supports
the social, cultural, and economic well
being of the communities within the
Subbasin and the Pacific Northwest.
Watershed Habitat Goals
Increase pool quality and quantity
Reduce water temperature
Improve & re-establish riparian vegetation
Increase natural stream stability
Reduce sediment delivery to streams
Reduce fine sediment in spawning gravels
Watershed Restoration
Uplands:      keeping them in place
Riparian:     reestablish biological function
Flow:         enhancing for instream usage
Instream:     complex habitat
Monitoring:   validating efforts with results
Education:    present & future generations
Upland Goals
Reduce Sediment Erosion
Increase Water Infiltration
Increase Range Quality
Upland Methods
Direct Seeding
   Successes:
          75% of upland tillable ground addressed
   Challenges:
          Economic viability for producers
   Possible Impact of Challenges:
          Return to a summer fallow rotation
Supporting Best Management Practices
Rill Erosion, conventional tillage
Across the road, Direct Seeding
Conventional tillage, with supporting
  practices, rill and gully erosion
Direct seeding without supporting
       practices, no erosion
Riparian Goals
Increase Vegetative Buffer – Long term
 Water Temperature Reduction
 Large Organic Debris Recruitment

 Floodplain Connectivity

 Filtration Function

 Reduce Stream bank Erosion & Sedimentation

 Reduce Fines in Spawning Gravels
Riparian Methods
   Fencing
      Total Exclusion
      Partial Exclusion

      Prescribed Grazing

 Off-Site Water System
 Re-vegetation
Riparian Program
   Buffer establishment
        CREP
             32 Contracts
             977 acres
             47.7 riparian miles
             168’ average buffer width
        Non CREP
             Infrastructure limits buffer width
             Desire re-vegetation without use exclusion
Off Stream Water System
Off Stream Water Tank
04 Livestock Exclusion Site
Livestock exclusion fence to protect
   currently functioning riparian
Riparian area planted in 1999
Instream Goals
Increase
   Pool Quality and Quantity
   Large Organic Debris
   Spawning Habitat Quality
Decrease
   Width to Depth Ratio
   Sedimentation
   Water Temperature
Instream Methods
Vortex Weir
Rootwad Revetment
J-hook Vain
Large Organic Debris Placement
Vortex Rock Weir with Rootwads
Rootwad Revetment upon completion
Interstitial spaces and complexity that
         juvenile chinook prefer
Vortex Rock Weir with Rootwad that
 older age classes of salmon prefer
Flow Enhancement Goals
Address imminent threat in naturally low or
dewatered stream reaches
Verify water usage
Reduce unnecessary water diversion
Returning saved water to an instream usage
Flow Enhancement Methods
Fish Screens
   48 identified – installation in progress
Water Flow Meters
   Installed with screens
Efficient Irrigation Systems
   Proven water savings trusted through the
    Washington Water Trust
Typical Screen in “created” side channel
Typical side channel with barrier to
impound water for old style screen
Typical push up berm to divert water to
           traditional intake
New screen design
New screen with no pushup berm or side
           channel needed
Traditional inefficient irrigation practice
 New highly efficient system results in
water conservation and water remaining
               instream
Monitoring & Evaluation
Habitat Assessments
 Habitat measurements
 Snorkeling
 Temperature monitoring
 Conducted by WDFW Snake River Lab

Milestone Assessment
 Comparative look at habitat (pre-plan to current)
 Conducted by Parametrix
Habitat Assessment
Habitat measurements
 Pool quality and quantity
 Thalweg depth
 LOD present
 Width to Depth ratio
 Water velocity

Snorkeling
   Comparative of project - control sites
Temperature Monitoring
   15 sites
                                                                             34 Control sites
                                               1999   2000   2001     2002
                                                                             51 Treatment sites
                        35

                        30

                        25
Density (Fish/100 m2)




                        20

                        15

                        10

                         5

                         0
                                Control Site      LOD               J-Hook       Vortex


                             Mean densities of Age 0 chinook salmon in three habitat
                              structure types and index sites in the Tucannon River
Milestone Assessment
Examination of existing conditions
Assess the success of habitat rehabilitation
Assist in selecting and prioritizing future
projects
Physical habitat data collection for
      Milestone Assessment
Agency staff collecting stream flow data
Education & Outreach
Tours & Presentations
Salmon In the Classroom
Camp Wooten
Engineered log jam tour with state and
federal agencies along with landowners
           and stakeholders
Fish in the Classroom
The Next Steps
Finalize the Tucannon Subbasin Plan
Implement Activities that address identified
habitat restoration needs
Continue to monitor efforts toward progress

				
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posted:8/14/2012
language:English
pages:43