Fish Passage Site 10103572

Coordinates (dec. deg.): 55.82124°, -133.04002°
Legal Description: C070S081E08
Region: Southeast
Road Name: North Prince of Wales Road

Datum: NAD83
Quad Name / ITM: Craig D-4
AWC Stream #:
Stream Name: Unnamed

Elevation:

Site Comments: None

Survey Date: Jun 12, 2017

Survey SEA17-NPW06

Observers: Elizabeth Flory, Kelly Petty

Overall Fish Passage Rating: Green

Tidal: No
Backwatered: Yes

Step Pools: No
Construction Year:


Site Observations:

  1. Culvert gradient gray

Comments: Coho upstream - new anadromous stream.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Green
 
Length(ft): 83.0
Inlet Type: Mitered
Outlet Type: Mitered
Corrugation Depth(in.): 1.0
Corrugation Width(in.): 3.0
Condition Rating(1-5): 3
Approach Angle: 13.0
Sedimentation At Inlet: Yes
Inlet Substrate: Organic
Outlet Substrate: Organic
InletOutlet
Width(ft):6.5 6.0
Height(ft):5.0 5.2
Apron Length(ft):
Water Depth(ft): 2.89
Rustline Height(ft):2.0
Substrate Depth(ft):1.5 0.8
Backwatered?: Yes
Baffles Present: No
Embedded?: No
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio: 1.48
Culvert Gradient: 1.19%
Max Slope:
Max Slope Length:
 

Comments: Length measured over road. Could not see through pipe due to low spot in middle. Using pipe tops gradient is 1.19. Through pipe gradient is 0.19. Top of culvert length 79'.
  Culvert Observations:
  1. Culvert gradient gray

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:GravelGravel
Subdominant:CobbleCobble
Stream Slope(deg.):1.4
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Upstream ordinary high water 25.0 3.00
Upstream ordinary high water 100.0 7.20
Upstream ordinary high water 150.0 3.00

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Road Elev 106.67
D/S Grade Ctrl (Thalweg) 0.00 96.33
D/S Water Surface Elev 0.00 98.23
Outlet Invert (on substrate) 39.00 95.28
D/S Water Surface Elev 39.00 98.17
Outlet Culvert Top 41.00 99.05
Inlet Culvert Top 120.00 99.99
U/S Water Surface Elev 122.00 98.36
Inlet Culvert Invert (on substrate) 122.00 95.97
U/S Grade Ctrl (Thalweg) 154.00 97.97
U/S Water Surface Elev 154.00 98.38
U/S Grade Ctrl (Thalweg) 237.00 99.25
U/S Water Surface Elev 237.00 99.54

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): 1.2
Comments: 3 coho
 
Gear Type: Minnow Trap (B) Trap Duration(h): 1.2
Comments: cutthroat

Fish Observations

Species: juvenile coho salmon Life History:
Total Fish Observed: 3 Fish Measured: 3 Fork Lengths (mm) Min: 47 Max: 72 Mean: 63
Collected/Observed by Gear Type: Upstream Minnow Trap (3)  
 
Species: juvenile cutthroat trout Life History:
Total Fish Observed: 1 Fish Measured: 1 Fork Lengths (mm) Min: 120 Max: 120 Mean: 120
Collected/Observed by Gear Type: Downstream Minnow Trap (1)  

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