Fish Passage Site 50101574

Coordinates (dec. deg.): 64.69328°, -164.25788°
Legal Description: K009S028W22
Region: Arctic
Road Name: Council Road

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

Elevation:

Site Comments: Mile 45.7

Survey Date: Jul 05, 2006

Survey SEW05-COR19

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. Culvert gradient red

Comments: Additional 48" overflow pipe not surveyed. Snow & ice in channel during survey.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Red
 
Length(ft): 78.3
Inlet Type: Flush
Outlet Type: Flush
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 2.75
Condition Rating(1-5): 3
Approach Angle: 19.0
Sedimentation At Inlet:
Inlet Substrate: None
Outlet Substrate: None
InletOutlet
Width(ft):3.1 2.8
Height(ft):3.0 3.0
Apron Length(ft):
Water Depth(ft): 0.56
Rustline Height(ft):0.8
Substrate Depth(ft):0.0 0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Embedded Depth(ft): 0.0
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio: 0.89
Culvert Gradient: 4.38%
Max Slope:
Max Slope Length:
 

Comments: Water depth calculated from inv and TW elev

  Culvert Observations:
  1. Culvert gradient red

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:GravelGravel
Subdominant:CobbleCobble
Stream Slope(deg.):
Stream Flow Stage:
Stream Width Type Distance From
Crossing (ft)
Stream
Width (ft)
Downstream ordinary high water
Downstream ordinary high water 50.0 6.80
Upstream bank full
Upstream bank full 75.0 4.80
Upstream bank full 100.0 5.00
Upstream bank full 125.0 4.60
Upstream bed width
Upstream ordinary high water
Upstream ordinary high water 75.0 3.80
Upstream ordinary high water 100.0 3.90
Upstream ordinary high water 125.0 2.70

Elevations

Locator ID Culvert
Number
River
Distance (ft)1
Distance From
Crossing (ft)2
Relative
Elevation (ft)
Outlet Pool Water Elev 90.37
Max Pool Depth 1.65
D/S Grade Ctrl (Thalweg) 0.00 118.0 84.10
D/S Grade Ctrl (Thalweg) 53.00 65.0 86.79
D/S Grade Ctrl (Thalweg) 68.00 50.0 87.59
D/S Tailcrest or 1st Thalweg 102.00 16.0 90.08
OHW (Outlet Tailcrest) 102.00 16.0 90.52
Bankfull 102.00 16.0 91.01
D/S Thalweg 113.00 5.0 1.65
Outlet Invert 1 118.00 0.0 89.81
Road Elev 157.00 104.82
Inlet Culvert Invert 1 196.00 0.0 93.24
U/S Grade Ctrl (Thalweg) 199.00 3.0 93.88
U/S Grade Ctrl (Thalweg) 212.00 16.0 95.22
U/S Grade Ctrl (Thalweg) 233.00 37.0 95.66
U/S Grade Ctrl (Thalweg) 265.00 69.0 96.87
U/S Grade Ctrl (Thalweg) 280.00 84.0 97.55
U/S Grade Ctrl (Thalweg) 306.00 110.0 98.86
U/S Grade Ctrl (Thalweg) 334.00 138.0 100.16

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