Fish Passage Site 40501712

Coordinates (dec. deg.): 65.21867°, -149.59378°
Legal Description: F005N010W34
Region: Interior
Road Name: Elliott Highway

Datum: WGS84
Quad Name / ITM: Livengood A-6
AWC Stream #:
Stream Name:

Elevation:

Site Comments: None

Survey Date: Jul 08, 2010

Survey EDS10-ELH27

Observers: Mark Eisenman, Justin Leon

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Site Observations:

  1. Road Fill (pushed off road by grader)
  2. Culvert gradient red

Comments: The habitat upstream is marginal with no clearly defined channel. There is roadfill sliding into this culvert. No minnow traps were set out here because the water was too shallow.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Red
 
Length(ft): 55.2
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 2.5
Condition Rating(1-5): 3
Approach Angle: 7.0
Sedimentation At Inlet: Yes
Inlet Substrate: Gravel
Outlet Substrate: None
InletOutlet
Width(ft):4.0 4.0
Height(ft):3.6 4.0
Apron Length(ft):
Water Depth(ft): 0.5
Rustline Height(ft):0.4
Substrate Depth(ft):0.2 0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio: 1.44
Culvert Gradient: 2.07%
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. Road Fill (pushed off road by grader)
  2. Culvert gradient red

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:Silt/ClaySilt/Clay
Subdominant:GravelGravel
Stream Slope(deg.):
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Downstream ordinary high water 34.0 2.60
Downstream ordinary high water 52.0 2.90
Downstream ordinary high water 65.0 2.80

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Road Elev (Road Surface) 102.35
D/S Grade Ctrl (Thalweg) (Thalweg) 0.00 95.60
D/S Water Surface Elev (Water Surface) 0.00 95.89
D/S Tailcrest or 1st Thalweg (Thalweg) 15.00 96.23
D/S Water Surface Elev (Water Surface) 15.00 96.51
Max Pool Depth (Substrate) 20.00 95.95
D/S Water Surface Elev (Water Surface) 20.00 96.49
Outlet Culvert Top (Top of Pipe) 22.00 100.01
Outlet Invert (Bottom of Pipe) 22.00 95.97
D/S Water Surface Elev (Water Surface) 22.00 96.47
Inlet Culvert Top (Top of Pipe) 77.20 101.15
Inlet Culvert Invert (Substrate) 77.20 97.54
U/S Water Surface Elev (Water Surface) 77.20 98.27
U/S Water Surface Elev (Water Surface) 79.20 98.30
U/S Headwater (Substrate) 79.20 97.43

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

Gear Type: None (A)
Comments: No traps set water too shallow, no fish observed.

Fish Observations

No fish observations occurred during this survey.

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