Fish Passage Site 50101578

Coordinates (dec. deg.): 64.58488°, -164.41261°
Legal Description: K010S029W35
Region: Arctic
Road Name: Council Road

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

Elevation:

Site Comments: Miles 35.8

Survey Date: Jul 06, 2006

Survey SEW05-COR23

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

Overall Fish Passage Rating: Gray

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Site Observations:

  1. Mechanical damage or joints parting
  2. Constriction ratio gray
  3. Culvert gradient gray

Comments: Many small fish observed u/s, mostly sculpin. Conflunce with Solomon River is d/s.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Gray
 
Length(ft): 85.9
Inlet Type: Mitered
Outlet Type: Mitered
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):7.0 6.7
Height(ft):6.8 7.0
Apron Length(ft):
Water Depth(ft): 1.8
Rustline Height(ft):1.5
Substrate Depth(ft):0.0 0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Embedded Depth(ft): 0.0
Outfall Height: 0.01
Outfall Type:
Constriction Ratio: 0.53
Culvert Gradient: 0.58%
Max Slope:
Max Slope Length:
 

Comments: inlet and outlet show significant mechanical damage
  Culvert Observations:
  1. Mechanical damage or joints parting
  2. Culvert gradient gray
  3. Constriction ratio gray

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:GravelGravel
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 150.0 20.00
Upstream bank full 75.0 18.80
Upstream bank full 100.0 15.40
Upstream bank full 125.0 14.40
Upstream bank full 150.0 19.70
Upstream bed width
Upstream ordinary high water 75.0 13.70
Upstream ordinary high water 100.0 14.00
Upstream ordinary high water 125.0 8.30
Upstream ordinary high water 150.0 16.80

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Max Pool Depth 2.15
Outlet Pool Water Elev 94.85
D/S Grade Ctrl (Thalweg) 0.00 290.0 91.90
D/S Grade Ctrl (Thalweg) 140.00 150.0 93.72
D/S Tailcrest or 1st Thalweg 260.00 30.0 94.27
Bankfull 260.00 30.0 95.99
OHW (Outlet Tailcrest) 260.00 30.0 95.07
D/S Thalweg 285.00 5.0 0.55
Outlet Invert 1 290.00 0.0 93.06
Road Elev 332.50 104.72
Inlet Culvert Invert 1 375.00 0.0 93.56
U/S Grade Ctrl (Thalweg) 384.00 9.0 93.68
U/S Grade Ctrl (Thalweg) 391.00 16.0 94.15
U/S Grade Ctrl (Thalweg) 406.00 31.0 94.39
U/S Grade Ctrl (Thalweg) 436.00 61.0 94.94
U/S Grade Ctrl (Thalweg) 469.00 94.0 95.16
U/S Grade Ctrl (Thalweg) 494.00 119.0 95.34
U/S Grade Ctrl (Thalweg) 573.00 198.0 95.83

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