Fish Passage Site 10103608

Coordinates (dec. deg.): 55.69738°, -132.89203°
Legal Description: C071S082E19
Region: Southeast
Road Name: North Prince of Wales Road

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

Elevation:

Site Comments: None

Survey Date: Jul 24, 2017

Survey SEA17-NPW42

Observers: Elizabeth Flory, Kelly Petty

Overall Fish Passage Rating: Gray

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Comments: Baffles, steep pipe. First resting is side pool near inlet.Logs and boulder by inlet. Upstream has series of step pools and shallow riffle. Downstream has large gravel bar forming tailwater control, large woody debris pools. No fish captured.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Gray
 
Length(ft): 136.0
Inlet Type: Mitered
Outlet Type: Mitered
Corrugation Depth(in.): 2.0
Corrugation Width(in.): 5.0
Condition Rating(1-5): 3
Approach Angle: 5.0
Sedimentation At Inlet: Yes
Inlet Substrate: Boulder
Outlet Substrate: Gravel
InletOutlet
Width(ft):7.6 7.4
Height(ft):7.5 7.1
Apron Length(ft):
Water Depth(ft): 0.73
Rustline Height(ft):1.0
Substrate Depth(ft):0.1 0.3
Backwatered?: No
Baffles Present: Yes
Embedded?: No
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio: 1.8
Culvert Gradient: 7.38%
Max Slope:
Max Slope Length:
 

Comments: Downstream gradient measured. Pipe gradient steeper than stream. Top of culvert length 102'.

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:CobbleCobble
Subdominant:BoulderGravel
Stream Slope(deg.):4.47
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Upstream ordinary high water 40.0 4.50
Upstream ordinary high water 60.0 4.90
Upstream ordinary high water 80.0 3.20

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Road Elev 117.96
D/S Grade Ctrl (Thalweg) 0.00 95.88
D/S Water Surface Elev 0.00 96.27
D/S Thalweg (pool) 18.00 96.91
D/S Water Surface Elev 18.00 97.47
D/S Tailcrest or 1st Thalweg (gravel bar) 75.00 99.43
D/S Water Surface Elev 75.00 99.62
Max Pool Depth 83.00 98.85
D/S Water Surface Elev 83.00 99.74
Outlet Invert 86.00 98.99
D/S Water Surface Elev 86.00 99.72
Outlet Culvert Top 95.00 106.31
Inlet Culvert Top 215.00 115.17
Inlet Culvert Invert 222.00 107.56
U/S Water Surface Elev 222.00 108.23
U/S Water Surface Elev 231.00 108.48
U/S Grade Ctrl (Thalweg) 231.00 108.16
U/S Grade Ctrl (Thalweg) 266.00 110.93
U/S Water Surface Elev 266.00 111.93
U/S Water Surface Elev 270.00 112.33
U/S Grade Ctrl (Thalweg) 270.00 111.53

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): 1.3
Comments: no fish
 
Gear Type: Minnow Trap (B) Trap Duration(h): 1.5
Comments: no fish

Fish Observations

No fish observations occurred during this survey.

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