Fish Passage Site 10103583

Coordinates (dec. deg.): 55.77111°, -132.99542°
Legal Description: C070S081E28
Region: Southeast
Road Name: North Prince of Wales Road

Datum: NAD83
Quad Name / ITM: Craig D-3
AWC Stream #:
Stream Name: Unnamed

Elevation:

Site Comments: None

Survey Date: Jun 21, 2017

Survey SEA17-NPW17

Observers: Elizabeth Flory, Kelly Petty

Overall Fish Passage Rating: Gray

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Comments: Baffles present. Upstream has steep bedrock cascades and few resting spots. Downstream less steep. Trout in downstream trap.

Culvert Measurements

ID: 1 Structure Type: Pipe-arch (Structural steel plate) Fish Passage Rating: Gray
 
Length(ft): 115.9
Inlet Type: Mitered
Outlet Type: Mitered
Corrugation Depth(in.): 2.0
Corrugation Width(in.): 6.0
Condition Rating(1-5): 4
Approach Angle: 20.0
Sedimentation At Inlet: Yes
Inlet Substrate: Boulder
Outlet Substrate: None
InletOutlet
Width(ft):12.5 12.6
Height(ft):7.4 8.5
Apron Length(ft):
Water Depth(ft): 0.35
Rustline Height(ft):0.0
Substrate Depth(ft):1.0 0.0
Backwatered?: No
Baffles Present: Yes
Embedded?: No
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio: 1.77
Culvert Gradient: 6.14%
Max Slope:
Max Slope Length:
 

Comments: Top of culvert length 93.9'.

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:BedrockBedrock
Subdominant:GravelGravel
Stream Slope(deg.):6.97
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Upstream ordinary high water 50.0 6.75
Upstream ordinary high water 80.0 7.50
Upstream ordinary high water 100.0 7.00

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Road Elev 111.70
D/S Water Surface Elev 0.00 87.22
D/S Grade Ctrl (Thalweg) 0.00 86.79
D/S Grade Ctrl (Thalweg) (pool) 15.00 87.19
D/S Water Surface Elev 15.00 87.93
D/S Grade Ctrl (Thalweg) 25.00 89.89
D/S Water Surface Elev 25.00 90.10
Outlet Invert 39.00 91.16
D/S Water Surface Elev 39.00 91.51
Outlet Culvert Top 49.00 100.00
Inlet Culvert Top 142.90 105.77
U/S Water Surface Elev 154.90 99.82
Inlet Culvert Invert 154.90 99.12
U/S Water Surface Elev 169.90 99.67
U/S Grade Ctrl (Thalweg) (pool) 169.90 97.58
U/S Grade Ctrl (Thalweg) 172.90 101.50
U/S Water Surface Elev 172.90 103.48
U/S Grade Ctrl (Thalweg) 202.90 104.38
U/S Water Surface Elev 202.90 104.83
U/S Grade Ctrl (Thalweg) (near top of bedrock cascade) 261.90 109.66
U/S Water Surface Elev 261.90 109.68

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): 2.3
Comments: no fish
 
Gear Type: Minnow Trap (B) Trap Duration(h): 2.3
Comments: 20ft downstream 1 cutthroat

Fish Observations

Species: juvenile cutthroat trout Life History:
Total Fish Observed: 1 Fish Measured: 1 Fork Lengths (mm) Min: 119 Max: 119 Mean: 119
Collected/Observed by Gear Type: Downstream Minnow Trap (1)  

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