Fish Passage Site 20501489

Coordinates (dec. deg.): 62.47121°, -150.72270°
Legal Description: S028N008W34
Region: South Central
Road Name: Petersville Road

Datum: WGS84
Quad Name / ITM: Talkeetna B-2
AWC Stream #:
Stream Name: Peters Creek tributary

Elevation:

Site Comments: None

Survey Date: Jun 25, 2009

Survey PRK09-PVR12

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

Overall Fish Passage Rating: Gray

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Site Observations:

  1. Culvert gradient red
  2. Outfall height gray
  3. Shallow fill; inadequate roadfill volume above culvert
  4. Culvert is poorly aligned

Comments: None

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Green
 
Length(ft): 29.8
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 1.0
Corrugation Width(in.): 3.0
Condition Rating(1-5): 4
Approach Angle: 61.0
Sedimentation At Inlet: No
Inlet Substrate: None
Outlet Substrate: None
InletOutlet
Width(ft):7.0 7.0
Height(ft):7.1 6.9
Apron Length(ft):
Water Depth(ft): 0.78
Rustline Height(ft):1.5
Substrate Depth(ft):0.0 0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio: 0.98
Culvert Gradient: -0.40%
Max Slope:
Max Slope Length:
 

Comments: 4cm fish obs swimming u/s in pipe 1
  Culvert Observations:
  1. Shallow fill; inadequate roadfill volume above culvert
  2. Culvert is poorly aligned
ID: 2 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Red
 
Length(ft): 31.2
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 2.67
Condition Rating(1-5): 3
Approach Angle: 0.0
Sedimentation At Inlet: Yes
Inlet Substrate: None
Outlet Substrate: None
InletOutlet
Width(ft):4.9 4.8
Height(ft):4.9 5.0
Apron Length(ft):
Water Depth(ft): 0.34
Rustline Height(ft):0.8
Substrate Depth(ft):0.0 0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height: 0.21
Outfall Type: Free Fall In To Pool
Constriction Ratio: 0.98
Culvert Gradient: 2.08%
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. Culvert gradient red
  2. Outfall height gray
  3. Shallow fill; inadequate roadfill volume above culvert
  4. Culvert is poorly aligned

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:GravelCobble
Subdominant:CobbleGravel
Stream Slope(deg.):
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Upstream ordinary high water 106.0 9.00
Upstream ordinary high water 139.0 8.00
Upstream ordinary high water 166.0 9.00

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Outlet Pool Water Elev (out pool surface) 2 92.81
U/S Headwater 1 93.67
Outlet Pool Water Elev 1 93.67
U/S Headwater 2 93.71
D/S Grade Ctrl (Thalweg) (2nd GP d/s, measured from pipe 1) 0.00 93.0 91.46
D/S Water Surface Elev (WS @ GP) 0.00 93.0 91.99
D/S Water Surface Elev (WS @ TC) 1 79.00 14.0 93.83
D/S Water Surface Elev (WS @ TWC) 2 80.50 12.5 92.81
D/S Tailcrest or 1st Thalweg 2 80.50 12.5 92.44
D/S Tailcrest or 1st Thalweg 1 86.00 7.0 93.22
D/S Water Surface Elev (WS @ TWC) 1 86.00 7.0 93.65
D/S Thalweg 1 88.00 5.0 93.19
D/S Thalweg (bottom of out pool) 2 89.00 4.0 91.83
D/S Water Surface Elev 2 90.70 2.3 93.85
D/S Thalweg (streambed @ end of pipe) 2 93.00 0.0 92.34
Outlet Invert 2 93.00 0.0 92.68
Outlet Invert 1 93.00 0.0 92.89
Road Elev 108.00 100.31
Inlet Culvert Invert 2 123.00 0.0 93.33
Inlet Culvert Invert 1 123.00 0.0 92.77
U/S Grade Ctrl (Thalweg) (1st TC u/s pipe 2) 2 125.30 2.3 93.54
U/S Grade Ctrl (Thalweg) (1st TC u/s pipe 1) 1 137.00 14.0 93.50

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: Visual Observation, Ground (A)
Comments: Juvenile fish observed upstream.

Fish Observations

No fish observations occurred during this survey.

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