Fish Passage Site 40501688

Coordinates (dec. deg.): 65.15926°, -147.91370°
Legal Description: F004N002W23
Region: Interior
Road Name: Elliott Highway

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

Elevation:

Site Comments: None

Survey Date: Jun 22, 2010

Survey EDS10-ELH03

Observers: Mark Eisenman, Justin Leon

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Site Observations:

  1. Culvert gradient red
  2. Outfall height red
  3. Compound gradient in pipe
  4. Damage associated with ice problems
  5. Inlet perch
  6. Structural Problem

Comments: Towards the outlet of this culvert, the pipe is badly broken and bent. The pipe appears to be disconnected towards the outlet. There is a noticeable inlet perch. At the inlet of this pipe it looks to be 8', but at the outlet it looks like it is compressed.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Structural steel plate) Fish Passage Rating: Red
 
Length(ft): 122.0
Inlet Type: Mitered
Outlet Type: Mitered
Corrugation Depth(in.): 1.0
Corrugation Width(in.): 3.0
Condition Rating(1-5): 1
Approach Angle: 1.0
Sedimentation At Inlet: Yes
Inlet Substrate: None
Outlet Substrate: None
InletOutlet
Width(ft):8.0 8.0
Height(ft):8.0 8.0
Apron Length(ft):
Water Depth(ft): 0.22
Rustline Height(ft):1.4
Substrate Depth(ft):
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height: 1.15
Outfall Type: Free Fall In To Pool
Constriction Ratio: 0.84
Culvert Gradient: 3.82%
Max Slope: 6.47
Max Slope Length: 93.0
  Culvert Observations:
  1. Culvert gradient red
  2. Outfall height red
  3. Compound gradient in pipe
  4. Damage associated with ice problems
  5. Inlet perch
  6. Structural Problem

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)
Upstream ordinary high water 128.0 10.20
Upstream ordinary high water 166.0 9.80
Upstream ordinary high water 215.0 8.70

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Road Elev (Road Surface) 115.05
D/S Grade Ctrl (Thalweg) 0.00 86.43
D/S Water Surface Elev (Water Surface) 0.00 88.05
D/S Grade Ctrl (Thalweg) 84.00 90.92
D/S Water Surface Elev (Water Surface) 84.00 91.39
D/S Water Surface Elev (Water Surface) 92.00 91.68
D/S Tailcrest or 1st Thalweg (Thalweg) 92.00 91.16
Max Pool Depth 94.00 90.61
Outlet Pool Water Elev (Water Surface) 96.00 91.77
Outlet Invert (Bottom of Pipe) 96.00 92.70
D/S Water Surface Elev (Water Surface) 96.00 92.92
Misc. (Max Gradient of Pipe - Water Surface) 125.00 93.05
Misc. (Max Gradient of Pipe - Substrate) 125.00 91.34
Inlet Culvert Invert (Bottom of Pipe) 218.00 97.36
U/S Headwater (Water Surface) 218.00 97.72
U/S Headwater (Water Surface) 220.00 97.77
U/S Grade Ctrl (Thalweg) (Substrate) 220.00 96.04

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: Minnow Trap (A) Trap Duration(h): 2.42
Channel Type: Main Channel (>50% of water flow)
Comments: No fish were caught.
 
Gear Type: Minnow Trap (B) Trap Duration(h): 2.42
Channel Type: Main Channel (>50% of water flow)
Comments: No fish were caught.

Fish Observations

Species: no fish collected or observed Life History: Not Applicable
Total Fish Observed: 0 Fish Measured: Fork Lengths (mm) Min: Max: Mean:
Collected/Observed by Gear Type: Downstream Minnow Trap (0)  Upstream Minnow Trap (0)  

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