Fish Passage Site 50101631

Coordinates (dec. deg.): 65.30247°, -164.76482°
Legal Description: K002S030W23
Region: Arctic
Road Name: Kougarok Road

Datum: NAD83
Quad Name / ITM: Bendeleben B-6
AWC Stream #:
Stream Name: Unnamed

Elevation:

Site Comments: None

Survey Date: Oct 09, 2005

Survey SEW05-KR43

Project Supervisor: Dave Ryland,
Observers: Dave Ryland, Jason Cheney

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Site Observations:

  1. Culvert is poorly aligned
  2. Road bank erosion
  3. Outfall height red
  4. Culvert gradient red
  5. Constriction ratio red

Comments: None

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Red
 
Length(ft): 62.5
Inlet Type: Mitered
Outlet Type: Mitered
Corrugation Depth(in.): 0.75
Corrugation Width(in.): 2.75
Condition Rating(1-5): 3
Approach Angle: 74.0
Sedimentation At Inlet:
Inlet Substrate: None
Outlet Substrate: None
InletOutlet
Width(ft):3.9
Height(ft):4.1
Apron Length(ft):
Water Depth(ft): 0.2
Rustline Height(ft):1.5
Substrate Depth(ft):0.0 0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Embedded Depth(ft): 0.0
Outfall Height: 2.12
Outfall Type: Free Fall In To Pool
Constriction Ratio: 0.18
Culvert Gradient: 2.19%
Max Slope:
Max Slope Length:
 

Comments: Large scour pool.
  Culvert Observations:
  1. Culvert is poorly aligned
  2. Road bank erosion
  3. Outfall height red
  4. Culvert gradient red
  5. Constriction ratio red

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:Silt/ClaySilt/Clay
Subdominant:SandSand
Stream Slope(deg.):
Stream Flow Stage:
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Downstream ordinary high water
Downstream ordinary high water 90.0 3.50
Upstream bank full 75.0 26.40
Upstream bank full 100.0 23.20
Upstream bank full 125.0 38.20
Upstream bank full 150.0 50.10
Upstream bed width
Upstream bed width 75.0 8.00
Upstream bed width 100.0 7.00
Upstream bed width 150.0 19.90
Upstream ordinary high water 75.0 9.60
Upstream ordinary high water 100.0 12.90
Upstream ordinary high water 125.0 28.60
Upstream ordinary high water 150.0 34.70

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Outlet Pool Water Elev 92.85
Max Pool Depth 4.20
D/S Grade Ctrl (Thalweg) 0.00 90.0 91.49
D/S Tailcrest or 1st Thalweg 72.00 18.0 92.44
OHW (Outlet Tailcrest) 72.00 18.0 93.38
D/S Thalweg 85.00 5.0 4.00
Outlet Invert 1 90.00 0.0 94.77
Road Elev 121.00 110.01
Inlet Culvert Invert 1 152.00 0.0 96.14
U/S Thalweg 160.00 8.0 96.25
U/S Grade Ctrl (Thalweg) 168.00 16.0 96.42
U/S Thalweg 227.00 75.0 96.28
U/S Thalweg 302.00 150.0 96.48

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

No fish sampling occurred during this survey.

Fish Observations

No fish observations occurred during this survey.

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