Fish Passage Site 40501762

Coordinates (dec. deg.): 65.23967°, -146.82515°
Legal Description: F005N004E24
Region: Interior
Road Name: Steese Highway

Datum: WGS84
Quad Name / ITM: Circle A-6
AWC Stream #:
Stream Name: Ptarmigan Creek

Elevation:

Site Comments: DOT#38+315

Survey Date: Jul 21, 2010

Survey EDS10-STS13

Observers: Ben Histand, Justin Leon

Overall Fish Passage Rating: Gray

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Site Observations:

  1. Culvert gradient gray

Comments: Removed a piece of plywood that was causing an inlet perch.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Gray
 
Length(ft): 210.9
Inlet Type: Headwall
Outlet Type: Projecting
Corrugation Depth(in.): 1.0
Corrugation Width(in.): 3.0
Condition Rating(1-5): 3
Approach Angle: 14.0
Sedimentation At Inlet: Yes
Inlet Substrate: Cobble
Outlet Substrate: None
InletOutlet
Width(ft):6.8 7.0
Height(ft):5.6 7.0
Apron Length(ft):
Water Depth(ft): 1.4
Rustline Height(ft):1.0
Substrate Depth(ft):1.4 0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio: 0.76
Culvert Gradient: 1.01%
Max Slope:
Max Slope Length:
 

Comments: The rust line height was measured from the substrate to the rust line.
  Culvert Observations:
  1. Culvert gradient gray

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:GravelGravel
Subdominant:CobbleCobble
Stream Slope(deg.):
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Upstream ordinary high water 67.0 5.50
Upstream ordinary high water 108.0 5.90
Upstream ordinary high water 169.0 4.60

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
D/S Water Surface Elev (Water Surface) 0.00 45.46
D/S Grade Ctrl (Thalweg) (Thalweg) 0.00 44.72
D/S Tailcrest or 1st Thalweg (Thalweg - Rip-rap) 42.00 45.87
D/S Water Surface Elev (Water Surface) 42.00 46.61
D/S Thalweg (Bottom of Outlet Pool) 47.00 45.44
D/S Water Surface Elev (Tail Water Surface) 57.00 46.73
D/S Water Surface Elev (Water Surface) 58.00 46.74
Outlet Invert (Bottom of Pipe) 58.00 45.34
Outlet Culvert Top (Top of Pipe) 58.00 52.55
Inlet Culvert Top (Top of Pipe) 269.00 53.02
Inlet Culvert Invert (Bottom of Pipe) 269.00 47.46
U/S Water Surface Elev (Water Surface - calm at inlet) 269.00 47.86
U/S Grade Ctrl (Thalweg) (Tail Control of 1st pool upstream) 301.00 48.99
U/S Water Surface Elev (Water Surface) 301.00 49.60

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): 2.83
Channel Type: Main Channel (>50% of water flow)
Comments: Nothing was caught.
 
Gear Type: Minnow Trap (B) Trap Duration(h): 2.83
Channel Type: Main Channel (>50% of water flow)
Comments: Nothing was 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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