Fish Passage Site 50101572

Coordinates (dec. deg.): 64.69600°, -164.20707°
Legal Description: K009S028W23
Region: Arctic
Road Name: Council Road

Datum: NAD83
Quad Name / ITM: Solomon C-5
AWC Stream #:
Stream Name: Unnamed

Elevation:

Site Comments: Mile 47.4. Deep ravine upstream.

Survey Date: Jul 05, 2006

Survey SEW05-COR17

Project Supervisor: Dave Ryland,
Observers: Dave Ryland, Kyle Negri

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Site Observations:

  1. Mechanical damage or joints parting
  2. Outfall height red
  3. Culvert gradient red
  4. Constriction ratio gray

Comments: u/s chan packed with snow, d/s chan meas substituted for width. Lip of invert bent inward, see photos.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Red
 
Length(ft): 180.1
Inlet Type: Mitered
Outlet Type: Flush
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 2.75
Condition Rating(1-5): 3
Approach Angle: 10.0
Sedimentation At Inlet:
Inlet Substrate: None
Outlet Substrate: None
InletOutlet
Width(ft):3.3 4.1
Height(ft):3.7 4.1
Apron Length(ft):
Water Depth(ft): 0.1
Rustline Height(ft):0.9
Substrate Depth(ft):0.0 0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Embedded Depth(ft): 0.0
Outfall Height: 1.85
Outfall Type: Cascade Over Rip-Rap
Constriction Ratio: 0.57
Culvert Gradient: 5.37%
Max Slope:
Max Slope Length:
 

Comments: u/s chan full of snow; stream reach u/s maybe 150-200m, see photos; approach angle est.
  Culvert Observations:
  1. Mechanical damage or joints parting
  2. Outfall height red
  3. Culvert gradient red
  4. Constriction ratio gray

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:GravelGravel
Subdominant:GravelCobble
Stream Slope(deg.):
Stream Flow Stage:
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Downstream ordinary high water
Upstream bank full
Upstream bank full 5.0 6.60
Upstream bank full 100.0 6.50
Upstream bank full 150.0 7.10
Upstream bed width
Upstream ordinary high water
Upstream ordinary high water 75.0 5.00
Upstream ordinary high water 100.0 5.80
Upstream ordinary high water 150.0 6.60

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Outlet Pool Water Elev 32.29
Max Pool Depth 2.00
D/S Grade Ctrl (Thalweg) 0.00 145.0 24.77
D/S Grade Ctrl (Thalweg) 80.00 65.0 29.20
D/S Grade Ctrl (Thalweg) 91.00 54.0 30.25
D/S Grade Ctrl (Thalweg) 102.00 43.0 31.60
D/S Tailcrest or 1st Thalweg 131.00 14.0 32.09
OHW (Outlet Tailcrest) 131.00 14.0 33.24
D/S Thalweg 140.00 5.0 1.45
Outlet Invert 1 145.00 0.0 34.04
Road Elev 235.00 91.32
Inlet Culvert Invert 1 325.00 0.0 43.72
U/S Grade Ctrl (Thalweg) 325.00 0.0 43.92
U/S Grade Ctrl (Thalweg) 333.00 8.0 44.79
U/S Thalweg 338.00 13.0 46.16
U/S Grade Ctrl (Thalweg) 493.00 168.0 55.71
U/S Grade Ctrl (Thalweg) 605.00 280.0 66.25

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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