Fish Passage Site 40501754

Coordinates (dec. deg.): 65.17072°, -147.29022°
Legal Description: F004N002E14
Region: Interior
Road Name: Steese Highway

Datum: WGS84
Quad Name / ITM: Livengood A-1
AWC Stream #:
Stream Name: Chatanika River tributary

Elevation:

Site Comments: None

Survey Date: Jun 14, 2010

Survey EDS10-STS05

Observers: Mark Eisenman, Justin Leon

Overall Fish Passage Rating: Gray

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Site Observations:

  1. Culvert gradient gray

Comments: Beaver Gates on Inlet and Outlet. Ponds U/S and D/S. Grayling found dead lodged in invert pipe between pipe and flare. Dead but not decomposed, gills were pink and eyes clear. Most if not all substrate above and below culvert is road fill.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Gray
 
Length(ft): 113.0
Inlet Type: Flared Inlet
Outlet Type: Flared Inlet
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 2.5
Condition Rating(1-5): 3
Approach Angle: 35.0
Sedimentation At Inlet: Yes
Inlet Substrate: None
Outlet Substrate: None
InletOutlet
Width(ft):5.02 5.06
Height(ft):4.98 5.0
Apron Length(ft):6.62 6.68
Water Depth(ft): 0.06
Rustline Height(ft):1.32
Substrate Depth(ft):0.0 0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio:
Culvert Gradient: 1.09%
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. Culvert gradient gray

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:OrganicOrganic
Subdominant:Silt/ClaySilt/Clay
Stream Slope(deg.):
Stream Flow Stage:Low

No stream width data available.

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Road Elev (Road Surface) 104.03
D/S Tailcrest or 1st Thalweg (Substgrate only no water at TWC) 0.00 93.35
Max Pool Depth (Substate) 8.00 92.69
D/S Water Surface Elev (Pool above TWC) 8.00 93.02
Misc. (End of Apron) 21.50 93.24
D/S Water Surface Elev (End of Apron - Water Surface) 21.50 93.28
Outlet Invert (Bottom of Pipe) 28.00 93.40
D/S Water Surface Elev (Water Surface) 28.00 93.46
Top of Pipe Outlet (Top of Pipe) 28.00 98.54
Top of Pipe Inlet (Top of Pipe) 141.00 99.70
Inlet Culvert Invert (Bottom of Pipe) 141.00 94.63
U/S Water Surface Elev (Water Surface) 141.00 94.77
U/S Water Surface Elev (Water Surface at Pond Surface) 147.50 94.92
Misc. (End of Apron) 147.50 94.43

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: Minnow Trap (A) Trap Duration(h): 1.25
Channel Type: Main Channel (>50% of water flow)
Comments: No fish caught.
 
Gear Type: Minnow Trap (B) Trap Duration(h): 1.25
Channel Type: Main Channel (>50% of water flow)
Comments: No fish caught.
 
Gear Type: Other (C)
Comments: One grayling found dead lodge between flare apron and pipe.

Fish Observations

Species: adult Arctic grayling Life History: Resident
Total Fish Observed: 1 Fish Measured: 1 Fork Lengths (mm) Min: 150 Max: 150 Mean: 150
Collected/Observed by Gear Type: Upstream Minnow Trap (1)  
 
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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