Fish Passage Site 50101610

Coordinates (dec. deg.): 64.86817°, -165.26236°
Legal Description: K007S033W24
Region: Arctic
Road Name: Kougarok Road

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

Elevation:

Site Comments: Mile 29.6

Survey Date: Sep 24, 2005

Survey SEW05-KR22

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

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Site Observations:

  1. Mechanical damage or joints parting
  2. Culvert is poorly aligned
  3. Hydraulic flows exceeded capacity
  4. Culvert gradient red
  5. Constriction ratio red
  6. Inlet perch

Comments: Dollie Varden observed d/s/ of culvert

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Red
 
Length(ft): 40.3
Inlet Type: Mitered
Outlet Type: Mitered
Corrugation Depth(in.): 0.75
Corrugation Width(in.): 2.75
Condition Rating(1-5): 2
Approach Angle: 24.0
Sedimentation At Inlet:
Inlet Substrate: None
Outlet Substrate: None
InletOutlet
Width(ft):4.0
Height(ft):4.0
Apron Length(ft):
Water Depth(ft): 2.1
Rustline Height(ft):2.7
Substrate Depth(ft):0.0 0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Embedded Depth(ft): 0.0
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio: 0.1
Culvert Gradient: 3.47%
Max Slope:
Max Slope Length:
 

Comments: Stream at or slightly above bankfull stage; Dolly Varden obs (PT) upstream of culvert
  Culvert Observations:
  1. Mechanical damage or joints parting
  2. Culvert is poorly aligned
  3. Hydraulic flows exceeded capacity
  4. Culvert gradient red
  5. Constriction ratio red
  6. Inlet perch

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:Gravel
Subdominant:Gravel
Stream Slope(deg.):
Stream Flow Stage:High
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Downstream ordinary high water
Downstream ordinary high water 44.5 5.70
Upstream bank full 75.0 46.20
Upstream bank full 100.0 47.10
Upstream bank full 125.0 48.70
Upstream bank full 150.0 54.10
Upstream bed width 75.0 6.70
Upstream bed width 100.0 16.00
Upstream bed width 125.0 14.30
Upstream bed width 150.0 5.90
Upstream ordinary high water 75.0 40.40
Upstream ordinary high water 100.0 40.20
Upstream ordinary high water 125.0 37.20
Upstream ordinary high water 150.0 47.10

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Max Pool Depth 3.30
Outlet Pool Water Elev 95.89
U/S Thalweg 97.70
D/S Grade Ctrl (Thalweg) 0.00 44.5 93.18
D/S Tailcrest or 1st Thalweg 25.50 19.0 94.02
OHW (Outlet Tailcrest) 25.50 19.0 95.00
D/S Thalweg 39.50 5.0 3.00
Outlet Invert 1 44.50 0.0 93.79
Road Elev 64.50 99.59
Inlet Culvert Invert 1 84.50 0.0 95.19
U/S Thalweg 92.50 8.0 95.92
U/S Thalweg 209.50 125.0 97.07

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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