Fish Passage Site 50101611

Coordinates (dec. deg.): 64.85192°, -165.26559°
Legal Description: K007S033W25
Region: Arctic
Road Name: Kougarok Road

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

Elevation:

Site Comments: Mile 28.4. Just upstream of confluence with Nome River

Survey Date: Sep 25, 2005

Survey SEW05-KR23

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. Outfall height red
  4. Constriction ratio red
  5. Culvert gradient gray

Comments: Spawned-out coho obs u/s of pipe (PT); pipe severely damaged.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Red
 
Length(ft): 56.4
Inlet Type: Mitered
Outlet Type: Mitered
Corrugation Depth(in.): 0.75
Corrugation Width(in.): 2.75
Condition Rating(1-5): 2
Approach Angle: 92.0
Sedimentation At Inlet:
Inlet Substrate:
Outlet Substrate:
InletOutlet
Width(ft):4.0
Height(ft):4.0
Apron Length(ft):
Water Depth(ft): 3.2
Rustline Height(ft):2.0
Substrate Depth(ft):
Backwatered?: No
Baffles Present: No
Embedded?: No
Embedded Depth(ft): 0.0
Outfall Height: 2.01
Outfall Type:
Constriction Ratio: 0.22
Culvert Gradient: 0.82%
Max Slope:
Max Slope Length:
 

Comments: rustline hgt estimated
  Culvert Observations:
  1. Mechanical damage or joints parting
  2. Culvert is poorly aligned
  3. Outfall height red
  4. Culvert gradient gray
  5. Constriction ratio red

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:GravelCobble
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 120.0 19.20
Upstream bank full 75.0 35.20
Upstream bank full 100.0 37.10
Upstream bank full 125.0 52.40
Upstream bank full 150.0 58.70
Upstream bed width 75.0 12.10
Upstream bed width 100.0 15.10
Upstream bed width 125.0 12.70
Upstream bed width 150.0 9.40
Upstream ordinary high water 75.0 18.40
Upstream ordinary high water 100.0 21.30
Upstream ordinary high water 125.0 15.50
Upstream ordinary high water 150.0 17.60

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Max Pool Depth 3.40
Outlet Pool Water Elev 93.66
U/S Thalweg 95.98
D/S Grade Ctrl (Thalweg) 0.00 120.0 92.27
OHW (Outlet Tailcrest) 91.00 29.0 94.00
D/S Tailcrest or 1st Thalweg 91.00 29.0 92.95
D/S Thalweg 115.00 5.0 2.10
Outlet Invert 1 120.00 0.0 92.47
Road Elev 148.00 102.49
Inlet Culvert Invert 1 176.00 0.0 92.93
U/S Thalweg 184.00 8.0 93.28
U/S Thalweg 326.00 150.0 94.70

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