Fish Passage Site 50101623

Coordinates (dec. deg.): 64.71899°, -165.27811°
Legal Description: K009S033W09
Region: Arctic
Road Name: Kougarok Road

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

Elevation:

Site Comments: Mile 18.0. Narrow dirt track leading down to site from road on N side.

Survey Date: Sep 27, 2005

Survey SEW05-KR35

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

Overall Fish Passage Rating: Gray

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Site Observations:

  1. Culvert is poorly aligned
  2. Constriction ratio red

Comments: None

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Structural steel plate) Fish Passage Rating: Gray
 
Length(ft): 176.9
Inlet Type: Flush
Outlet Type: Flush
Corrugation Depth(in.): 2.0
Corrugation Width(in.): 6.0
Condition Rating(1-5): 4
Approach Angle: 33.0
Sedimentation At Inlet:
Inlet Substrate: Cobble
Outlet Substrate: Cobble
InletOutlet
Width(ft):12.0 12.0
Height(ft):9.6
Apron Length(ft):
Water Depth(ft): 1.25
Rustline Height(ft):1.3
Substrate Depth(ft):1.7 1.7
Backwatered?: No
Baffles Present: No
Embedded?: Yes
Embedded Depth(ft): 1.7
Outfall Height: 0.0
Outfall Type:
Constriction Ratio: 0.36
Culvert Gradient: 2.97%
Max Slope:
Max Slope Length:
 

Comments: water depth in outlet calculated;
  Culvert Observations:
  1. Culvert is poorly aligned
  2. Constriction ratio red

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:CobbleCobble
Subdominant:GravelGravel
Stream Slope(deg.):
Stream Flow Stage:
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Downstream ordinary high water
Downstream ordinary high water 175.0 17.70
Upstream bank full 75.0 54.20
Upstream bank full 100.0 51.90
Upstream bank full 125.0 58.80
Upstream bank full 150.0 46.50
Upstream bed width 75.0 20.20
Upstream bed width 100.0 24.50
Upstream bed width 125.0 29.80
Upstream bed width 150.0 21.10
Upstream ordinary high water 75.0 30.10
Upstream ordinary high water 100.0 30.30
Upstream ordinary high water 125.0 34.50
Upstream ordinary high water 150.0 38.20

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Outlet Pool Water Elev 60.60
U/S Thalweg 66.30
D/S Thalweg 0.00 175.0 55.34
D/S Tailcrest or 1st Thalweg 139.00 36.0 58.39
OHW (Outlet Tailcrest) 139.00 36.0 59.62
Outlet Invert 1 175.00 0.0 59.35
Road Elev 263.00 106.99
Inlet Culvert Invert 1 351.00 0.0 64.60
U/S Thalweg 375.00 24.0 65.65
U/S Thalweg 426.00 75.0 68.60
U/S Thalweg 501.00 150.0 71.12

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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