Fish Passage Site 50101621

Coordinates (dec. deg.): 64.73571°, -165.24193°
Legal Description: K009S033W03
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 19.8. Can see Nome River from x-ing.

Survey Date: Sep 26, 2005

Survey SEW05-KR33

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. Culvert is poorly aligned
  2. Outfall height red
  3. Culvert gradient red
  4. Constriction ratio gray
  5. Inlet perch

Comments: None

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Red
 
Length(ft): 82.2
Inlet Type: Flush
Outlet Type: Flush
Corrugation Depth(in.): 1.0
Corrugation Width(in.): 3.0
Condition Rating(1-5): 4
Approach Angle: 41.0
Sedimentation At Inlet:
Inlet Substrate: None
Outlet Substrate: None
InletOutlet
Width(ft):3.9
Height(ft):3.9
Apron Length(ft):
Water Depth(ft): 1.1
Rustline Height(ft):0.7
Substrate Depth(ft):0.0 0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Embedded Depth(ft): 0.0
Outfall Height: 2.48
Outfall Type: Cascade Over Rip-Rap
Constriction Ratio: 0.68
Culvert Gradient: 9.73%
Max Slope:
Max Slope Length:
 

Comments: Rust line hgt in inlet est.
  Culvert Observations:
  1. Culvert is poorly aligned
  2. Outfall height red
  3. Culvert gradient red
  4. Constriction ratio gray
  5. Inlet perch

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:GravelCobble
Subdominant:SandCobble
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 129.0 6.40
Upstream bank full 75.0 11.60
Upstream bank full 100.0 11.70
Upstream bank full 125.0 6.20
Upstream bank full 150.0 8.10
Upstream bed width 75.0 3.80
Upstream bed width 100.0 3.90
Upstream bed width 125.0 2.60
Upstream bed width 150.0 2.10
Upstream ordinary high water 75.0 7.10
Upstream ordinary high water 100.0 7.40
Upstream ordinary high water 125.0 3.90
Upstream ordinary high water 150.0 4.70

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Outlet Pool Water Elev 80.79
Max Pool Depth 3.50
U/S Thalweg 92.13
D/S Grade Ctrl (Thalweg) 0.00 129.0 76.25
D/S Tailcrest or 1st Thalweg 104.00 25.0 79.98
OHW (Outlet Tailcrest) 104.00 25.0 80.88
D/S Thalweg 124.00 5.0 1.40
Outlet Invert 1 129.00 0.0 82.17
Road Elev 170.00 100.92
Inlet Culvert Invert 1 211.00 0.0 90.17
U/S Thalweg 219.00 8.0 89.75
U/S Thalweg 286.00 75.0 90.42
U/S Thalweg 361.00 150.0 92.79

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.

Questions or comments about this report can be directed to dfg.dsf.webmaster@alaska.gov