Fish Passage Site 20501218

Coordinates (dec. deg.): 61.77644°, -149.27901°
Legal Description: S020N001E33
Region: South Central
Road Name: Palmer Fishhook Road

Datum: WGS84
Quad Name / ITM: Anchorage D-7
AWC Stream #:
Stream Name: Fishhook Creek

Elevation:

Site Comments: None

Survey Date: Aug 10, 2009

Survey MSB09-PFR13

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

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Site Observations:

  1. Outfall height red
  2. Constriction ratio red
  3. Culvert gradient red
  4. Inlet perch

Comments: Short concrete footer present at both ends of pipe. Old bridge downstream of culvert falling into creek.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Red
 
Length(ft): 60.1
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 2.67
Condition Rating(1-5): 2
Approach Angle: 8.0
Sedimentation At Inlet: No
Inlet Substrate: None
Outlet Substrate: None
InletOutlet
Width(ft):8.7 8.5
Height(ft):7.7 8.0
Apron Length(ft):
Water Depth(ft): 0.96
Rustline Height(ft):2.4
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: 0.38
Culvert Gradient: 2.46%
Max Slope:
Max Slope Length:
 

Comments: Concrete footers at ends of culvert.
  Culvert Observations:
  1. Outfall height red
  2. Constriction ratio red
  3. Culvert gradient red
  4. Inlet perch

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:CobbleCobble
Subdominant:GravelCobble
Stream Slope(deg.):
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Upstream ordinary high water 132.0 26.00
Upstream ordinary high water 160.0 16.50
Upstream ordinary high water 200.0 26.00

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Road Elev 1 108.55
D/S Grade Ctrl (Thalweg) 1 0.00 47.0 88.05
D/S Water Surface Elev 1 0.00 47.0 89.24
D/S Tailcrest or 1st Thalweg 1 17.00 30.0 90.35
D/S Water Surface Elev (ws @ twc) 1 17.00 30.0 90.99
D/S Thalweg (bottom of pool) 1 39.00 8.0 88.76
Outlet Invert 1 47.00 0.0 90.80
Outlet Pool Water Elev 1 47.00 91.00
Inlet Culvert Invert 1 107.10 0.0 92.28
U/S Thalweg 1 107.10 0.0 92.82
U/S Headwater 1 107.10 93.65
U/S Grade Ctrl (Thalweg) (1st tc u/s) 1 123.10 16.0 94.42
U/S Water Surface Elev 1 123.10 16.0 95.30

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): 1.25
Comments: no fish caught; 150ft u/s
 
Gear Type: Minnow Trap (B) Trap Duration(h): 1.25
Comments: no fish caught; 100ft d/s

Fish Observations

No fish observations occurred during this survey.

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