Fish Passage Site 40501689

Coordinates (dec. deg.): 65.18565°, -147.97827°
Legal Description: F004N002W09
Region: Interior
Road Name: Elliott Highway Pullout

Datum: WGS84
Quad Name / ITM: Livengood A-2
AWC Stream #:
Stream Name: Snowshoe Creek tributary

Elevation:

Site Comments: 23.5 mile pullout. EDS10 ELH05 is same creek under the highway.

Survey Date: Jun 22, 2010

Survey EDS10-ELH04

Observers: Mark Eisenman, Justin Leon

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Site Observations:

  1. Structural Problem
  2. Mechanical damage or joints parting
  3. Culvert gradient red
  4. Outfall height red

Comments: No minnow traps were set out for this culvert because the water level was too low. There was very good substrate upstream. It was composed of SCL and GRV. The culvert is constricting the stream. This culvert appears to have 2 different pipes put together. The inlet pipe appears to be a circular, corrugated steel pipe. The outlet pipe appears to be a circular, aluminum pipe.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Red
 
Length(ft): 80.3
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 2.5
Condition Rating(1-5): 2
Approach Angle: 23.0
Sedimentation At Inlet: Yes
Inlet Substrate: None
Outlet Substrate: None
InletOutlet
Width(ft):2.9 3.0
Height(ft):3.0 3.0
Apron Length(ft):
Water Depth(ft): 0.08
Rustline Height(ft):0.8
Substrate Depth(ft):
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height: 0.93
Outfall Type: Free Fall In To Pool
Constriction Ratio: 0.8
Culvert Gradient: 8.88%
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. Structural Problem
  2. Mechanical damage or joints parting
  3. Culvert gradient red
  4. Outfall height red

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:GravelCobble
Subdominant:Silt/ClayOrganic
Stream Slope(deg.):
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Upstream ordinary high water 41.0 3.40
Upstream ordinary high water 61.0 2.10
Upstream ordinary high water 80.0 0.70

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Road Elev (Road Elevation) 101.95
D/S Grade Ctrl (Thalweg) (Thalweg) 27.00 84.78
D/S Water Surface Elev (Water Surface) 27.00 85.04
Max Pool Depth 66.00 88.66
Outlet Pool Water Elev (Water Surface) 67.00 89.05
Outlet Invert (Bottom of Pipe) 67.00 89.90
D/S Water Surface Elev (Water Surface) 67.00 89.98
Inlet Culvert Invert (Bottom of Pipe) 147.00 97.03
U/S Headwater (Water Surface) 147.00 97.16
U/S Water Surface Elev (Water Surface) 151.00 97.41
U/S Grade Ctrl (Thalweg) (Substrate) 151.00 97.09
U/S Grade Ctrl (Thalweg) (Thalweg) 157.00 97.52
U/S Water Surface Elev (Water Surface) 157.00 97.93

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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