Fish Passage Site 20501256

Coordinates (dec. deg.): 61.77625°, -149.39667°
Legal Description: S020N001W35
Region: South Central
Road Name: Willow Fishhook Road

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

Elevation:

Site Comments: None

Survey Date: Sep 10, 2009

Survey MSB09-WFR18

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 gray
  4. Shallow fill; inadequate roadfill volume above culvert

Comments: No fish caught; miter length = 8.0' at each end; short headwall at each end; "rust line" is scum line (SAP pipe).

Culvert Measurements

ID: 1 Structure Type: Pipe-arch (Structural aluminum plate) Fish Passage Rating: Red
 
Length(ft): 68.1
Inlet Type: Mitered
Outlet Type: Mitered
Corrugation Depth(in.): 2.5
Corrugation Width(in.): 9.0
Condition Rating(1-5): 4
Approach Angle: 29.0
Sedimentation At Inlet: No
Inlet Substrate: None
Outlet Substrate: None
InletOutlet
Width(ft):12.5 12.5
Height(ft):8.0 8.0
Apron Length(ft):
Water Depth(ft): 0.6
Rustline Height(ft):1.3
Substrate Depth(ft):0.0 0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height: 0.9
Outfall Type: Free Fall In To Pool
Constriction Ratio: 0.45
Culvert Gradient: 1.81%
Max Slope:
Max Slope Length:
 

Comments: Miter length = 8.0' at each end.
  Culvert Observations:
  1. Outfall height red
  2. Constriction ratio red
  3. Culvert gradient gray
  4. Shallow fill; inadequate roadfill volume above culvert

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 100.0 26.00
Upstream ordinary high water 150.0 32.50
Upstream ordinary high water 200.0 25.00

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Outlet Pool Water Elev 1 96.15
U/S Headwater 1 98.47
D/S Grade Ctrl (Thalweg) 1 0.00 84.0 95.34
D/S Water Surface Elev (@GP) 1 0.00 84.0 95.90
D/S Water Surface Elev (@TWC) 1 30.00 54.0 96.11
D/S Tailcrest or 1st Thalweg 1 30.00 54.0 95.13
D/S Thalweg (streambed just below headwall at outlet) 1 82.50 1.5 92.21
Outlet Invert 1 84.00 0.0 96.45
Road Elev 1 118.00 106.20
Inlet Culvert Invert 1 152.10 0.0 97.68
U/S Grade Ctrl (Thalweg) (1st TC u/s) 1 174.10 22.0 99.56
U/S Water Surface Elev 1 174.10 22.0 100.31

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; 75ft u/s
 
Gear Type: Minnow Trap (B) Trap Duration(h): 1.25
Comments: no fish caught; 85ft d/s

Fish Observations

No fish observations occurred during this survey.

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