Fish Passage Site 20501479

Coordinates (dec. deg.): 62.31733°, -150.30853°
Legal Description: S026N006W25
Region: South Central
Road Name: Petersville Road

Datum: WGS84
Quad Name / ITM: Talkeetna B-1
AWC Stream #:
Stream Name: Rabideux Creek tributary

Elevation:

Site Comments: None

Survey Date: Jun 08, 2009

Survey PRK09-PVR02

Project Supervisor: Gillian O'Doherty, ADFG
Observers: Heidi Zimmer, Ben Histand

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools:
Construction Year:


Site Observations:

  1. Outfall height red
  2. Culvert gradient red
  3. Constriction ratio gray
  4. Compound gradient in pipe
  5. Shallow fill; inadequate roadfill volume above culvert
  6. Mechanical damage or joints parting

Comments: 1 coho juv d/s; no fish in u/s trap.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated aluminum) Fish Passage Rating: Red
 
Length(ft): 67.2
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 2.67
Condition Rating(1-5): 4
Approach Angle: 30.0
Sedimentation At Inlet: No
Inlet Substrate: None
Outlet Substrate: None
InletOutlet
Width(ft):3.0 3.1
Height(ft):2.7 2.7
Apron Length(ft):
Water Depth(ft): 0.13
Rustline Height(ft):0.0
Substrate Depth(ft):0.0 0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height: 0.76
Outfall Type: Free Fall In To Pool
Constriction Ratio: 0.67
Culvert Gradient: 1.37%
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. Outfall height red
  2. Culvert gradient red
  3. Constriction ratio gray
  4. Compound gradient in pipe
  5. Shallow fill; inadequate roadfill volume above culvert
  6. Mechanical damage or joints parting

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:Silt/ClaySilt/Clay
Subdominant:
Stream Slope(deg.):
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Upstream ordinary high water 55.0 6.00
Upstream ordinary high water 80.0 4.00
Upstream ordinary high water 115.0 3.50

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Outlet Pool Water Elev (outlet pool ws) 1 91.40
U/S Headwater 1 93.25
D/S Water Surface Elev (d/s) 1 0.00 70.0 91.29
D/S Tailcrest or 1st Thalweg (slight GP) 1 59.00 11.0 90.81
D/S Water Surface Elev (ws @ TWC) 1 59.00 11.0 91.44
D/S Thalweg (bottom of pool) 1 64.30 5.7 90.73
D/S Water Surface Elev (ws @ GP) 1 69.20 0.8 93.35
Outlet Invert 1 70.00 0.0 92.03
Road Elev (u/s edge of rd) 1 103.50 99.46
Inlet Culvert Invert 1 137.00 0.0 92.95
U/S Thalweg (1st TC u/s) 1 137.80 0.8 93.12

Notes:

  1. River distance is measured continuously throughout the survey reach along the thalweg of the stream.
  2. Measured from each end of the crossing along the thalweg of the stream.

Fish Sampling Efforts

Gear Type: Minnow Trap (A) Trap Duration(h): 1.0
Comments: no fish caught; 130ft u/s
 
Gear Type: Minnow Trap (B) Trap Duration(h): 1.0
Comments: 40ft d/s

Fish Observations

Species: juvenile/adult coho salmon Life History: Anadromous
Total Fish Observed: 1 Fish Measured: 1 Fork Lengths (mm) Min: 65 Max: 65 Mean: 65
Collected/Observed by Gear Type: Downstream Minnow Trap (1)  

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