Fish Passage Site 50101627

Coordinates (dec. deg.): 64.61982°, -165.30248°
Legal Description: K010S033W17
Region: Arctic
Road Name: Kougarok Road

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

Elevation:

Site Comments: Mile 11.1. 1.5 miles SE of Banner Creek. Nome River immed d/s of x-ing. Crossing located between two driveways (gravel).

Survey Date: Oct 08, 2005

Survey SEW05-KR39

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. Sediment accumulation
  3. Outfall height red
  4. Culvert gradient red
  5. Constriction ratio gray

Comments: D/s of culvert is highly disturbed- shallow channel to apparent man-made pond. From pond flows through grass then to Nome River. Grass channel d/s of pond is probably dry (not connected to Nome River) at low water.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Red
 
Length(ft): 65.9
Inlet Type: Mitered
Outlet Type: Mitered
Corrugation Depth(in.): 0.75
Corrugation Width(in.): 2.75
Condition Rating(1-5): 3
Approach Angle: 35.0
Sedimentation At Inlet:
Inlet Substrate: Gravel
Outlet Substrate: Silt/Clay
InletOutlet
Width(ft):4.0
Height(ft):3.6
Apron Length(ft):
Water Depth(ft): 0.3
Rustline Height(ft):0.5
Substrate Depth(ft):0.4 0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Embedded Depth(ft): 0.0
Outfall Height: 2.91
Outfall Type: Free Fall In To Pool
Constriction Ratio: 0.69
Culvert Gradient: 1.78%
Max Slope:
Max Slope Length:
 

Comments: Second culvert present at site, no outlet visibile, inlet crushed and mostly buried, not surveyed.
  Culvert Observations:
  1. Culvert is poorly aligned
  2. Sediment accumulation
  3. Outfall height red
  4. Culvert gradient red
  5. Constriction ratio gray

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:GravelGravel
Subdominant:GravelSilt/Clay
Stream Slope(deg.):
Stream Flow Stage:
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Downstream ordinary high water
Downstream ordinary high water 97.0 11.60
Upstream bank full 75.0 10.50
Upstream bank full 100.0 8.80
Upstream bank full 125.0 11.10
Upstream bank full 150.0 15.70
Upstream bed width 75.0 4.80
Upstream bed width 100.0 3.60
Upstream bed width 125.0 5.10
Upstream bed width 150.0 6.00
Upstream ordinary high water 75.0 4.80
Upstream ordinary high water 100.0 4.50
Upstream ordinary high water 125.0 6.20
Upstream ordinary high water 150.0 7.60

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Max Pool Depth 2.20
Outlet Pool Water Elev 93.39
D/S Grade Ctrl (Thalweg) 0.00 97.0 89.63
D/S Tailcrest or 1st Thalweg 88.00 9.0 93.01
OHW (Outlet Tailcrest) 88.00 9.0 93.37
D/S Thalweg 92.00 5.0 1.10
D/S Thalweg 96.50 0.5 92.46
Outlet Invert 1 97.00 0.0 96.00
Road Elev 129.50 104.25
Inlet Culvert Invert 1 162.00 0.0 97.17
U/S Thalweg 170.00 8.0 97.71
U/S Grade Ctrl (Thalweg) 182.00 20.0 98.27
U/S Thalweg 237.00 75.0 99.89

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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