Fish Passage Site 50101638

Coordinates (dec. deg.): 64.64010°, -165.28391°
Legal Description: K010S033W09
Region: Arctic
Road Name: Red Fox Road

Datum: NAD83
Quad Name / ITM: Nome C-1
AWC Stream #:
Stream Name: Unnamed

Elevation:

Site Comments: 0.7 miles from intersection with Kougarok Road. Located next to unnamed gravel road.

Survey Date: Oct 11, 2005

Survey SEW05-RF02

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

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: Maybe

Step Pools: No
Construction Year:


Site Observations:

  1. Hydraulic flows exceeded capacity
  2. Constriction ratio red

Comments: Broad gently sloping channel, gravel and silt substrate, large amount of aquatic vegetation that was knee to mid-thigh deep. All pipes contain substantial amounts of bed material and invert elevations were measured on top of substrate in thalweg.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Non-corrugated metal) Fish Passage Rating: Red
 
Length(ft): 28.3
Inlet Type: Mitered
Outlet Type: Mitered
Corrugation Depth(in.): 0.0
Corrugation Width(in.): 0.0
Condition Rating(1-5): 2
Approach Angle: 49.0
Sedimentation At Inlet:
Inlet Substrate: Gravel
Outlet Substrate: Gravel
InletOutlet
Width(ft):1.9 2.0
Height(ft):0.8 1.2
Apron Length(ft):
Water Depth(ft): 1.04
Rustline Height(ft):0.8
Substrate Depth(ft):1.1 0.8
Backwatered?:
Baffles Present: No
Embedded?: Yes
Embedded Depth(ft): 0.9
Outfall Height: 0.0
Outfall Type:
Constriction Ratio: 0.24
Culvert Gradient: 2.44%
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. Culvert is poorly aligned
  2. Sediment accumulation
  3. Constriction ratio red
ID: 2 Structure Type: Circular pipe (Non-corrugated metal) Fish Passage Rating: Red
 
Length(ft): 28.0
Inlet Type: Mitered
Outlet Type: Mitered
Corrugation Depth(in.): 0.0
Corrugation Width(in.): 0.0
Condition Rating(1-5): 2
Approach Angle: 49.0
Sedimentation At Inlet:
Inlet Substrate: Gravel
Outlet Substrate: Gravel
InletOutlet
Width(ft):1.9 2.0
Height(ft):0.9 1.2
Apron Length(ft):
Water Depth(ft): 0.99
Rustline Height(ft):0.9
Substrate Depth(ft):1.0 0.8
Backwatered?:
Baffles Present: No
Embedded?: Yes
Embedded Depth(ft): 0.9
Outfall Height: 0.0
Outfall Type:
Constriction Ratio: 0.24
Culvert Gradient: 0.79%
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. Culvert is poorly aligned
  2. Sediment accumulation
  3. Constriction ratio red
ID: 3 Structure Type: Circular pipe (Non-corrugated metal) Fish Passage Rating: Red
 
Length(ft): 29.6
Inlet Type: Mitered
Outlet Type: Mitered
Corrugation Depth(in.): 0.0
Corrugation Width(in.): 0.0
Condition Rating(1-5): 2
Approach Angle: 49.0
Sedimentation At Inlet:
Inlet Substrate: None
Outlet Substrate: None
InletOutlet
Width(ft):1.9 2.0
Height(ft):1.9 2.0
Apron Length(ft):
Water Depth(ft): 1.64
Rustline Height(ft):1.9
Substrate Depth(ft):0.0 0.0
Backwatered?:
Baffles Present: No
Embedded?: No
Embedded Depth(ft): 0.0
Outfall Height: 0.0
Outfall Type:
Constriction Ratio: 0.24
Culvert Gradient: 3.61%
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. Culvert is poorly aligned
  2. Culvert gradient red
  3. Constriction ratio red
ID: 4 Structure Type: Circular pipe (Non-corrugated metal) Fish Passage Rating: Red
 
Length(ft): 28.3
Inlet Type: Mitered
Outlet Type: Mitered
Corrugation Depth(in.): 0.0
Corrugation Width(in.): 0.0
Condition Rating(1-5): 2
Approach Angle: 49.0
Sedimentation At Inlet:
Inlet Substrate: Gravel
Outlet Substrate: Gravel
InletOutlet
Width(ft):2.0 2.0
Height(ft):1.4 1.7
Apron Length(ft):
Water Depth(ft): 0.98
Rustline Height(ft):1.4
Substrate Depth(ft):0.6 0.3
Backwatered?:
Baffles Present: No
Embedded?: No
Embedded Depth(ft): 0.0
Outfall Height: 0.0
Outfall Type:
Constriction Ratio: 0.24
Culvert Gradient: 2.65%
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. Culvert is poorly aligned
  2. Culvert gradient red
  3. Constriction ratio red

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:GravelGravel
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 43.00
Upstream bank full 75.0 30.80
Upstream bank full 100.0 38.60
Upstream bank full 125.0 29.20
Upstream bank full 150.0 15.10
Upstream bed width 75.0 15.70
Upstream bed width 100.0 15.40
Upstream bed width 125.0 13.00
Upstream bed width 150.0 9.30
Upstream ordinary high water 75.0 18.40
Upstream ordinary high water 100.0 19.50
Upstream ordinary high water 125.0 16.00
Upstream ordinary high water 150.0 13.30

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Max Pool Depth 1.60
Outlet Pool Water Elev 98.76
U/S Thalweg 98.80
D/S Thalweg 0.00 90.0 97.13
D/S Tailcrest or 1st Thalweg 46.00 44.0 96.19
OHW (Outlet Tailcrest) 46.00 44.0 98.89
Bankfull 46.00 44.0 99.47
D/S Thalweg 78.00 12.0 97.36
D/S Thalweg 85.00 5.0 1.30
Outlet Invert 3 90.00 0.0 97.12
Outlet Invert 1 90.00 0.0 97.72
Outlet Invert 2 90.00 0.0 97.77
Outlet Invert 4 90.00 0.0 97.78
Road Elev 2 104.00 98.48
Inlet Culvert Invert 4 118.00 0.0 98.53
Inlet Culvert Invert 2 118.00 0.0 97.99
Inlet Culvert Invert 3 118.00 0.0 98.19
Inlet Culvert Invert 1 118.00 0.0 98.41
U/S Thalweg 1 126.00 8.0 97.91
U/S Grade Ctrl (Thalweg) 136.00 18.0 98.39
U/S Thalweg 218.00 100.0 96.66

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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