Fish Passage Site 10103605

Coordinates (dec. deg.): 55.70954°, -132.91017°
Legal Description: C071S082E18
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 21, 2017

Survey SEA17-NPW39

Observers: Elizabeth Flory, Kelly Petty

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools: Yes
Construction Year:


Site Observations:

  1. Outfall height red

Comments: Upstream splits around gravel bar, cascades steps, large woody debris froms 2ft high step, steeper upstream than downstream. Downstream parallels road and has constructed pools downstream (logs)

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Red
 
Length(ft): 94.0
Inlet Type: Mitered
Outlet Type: Mitered
Corrugation Depth(in.): 2.0
Corrugation Width(in.): 4.0
Condition Rating(1-5): 3
Approach Angle: 10.0
Sedimentation At Inlet: Yes
Inlet Substrate: Boulder
Outlet Substrate: Gravel
InletOutlet
Width(ft):8.1 8.1
Height(ft):7.5 7.8
Apron Length(ft):
Water Depth(ft): 0.7
Rustline Height(ft):5.11
Substrate Depth(ft):0.6 0.0
Backwatered?: No
Baffles Present: Yes
Embedded?: No
Outfall Height: 1.03
Outfall Type: Free Fall In To Pool
Constriction Ratio: 2.15
Culvert Gradient: 6.39%
Max Slope:
Max Slope Length:
 

Comments: Outfall height calculated from top of baffle at end of pipe. Top of pipe length 79'.
  Culvert Observations:
  1. Outfall height red

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:GravelGravel
Subdominant:BoulderBoulder
Stream Slope(deg.):9.76
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Upstream ordinary high water 50.0 3.80
Upstream ordinary high water 70.0 3.50
Upstream ordinary high water 90.0 4.00

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Road Elev 109.63
D/S Grade Ctrl (Thalweg) 0.00 84.85
D/S Water Surface Elev 0.00 85.15
D/S Grade Ctrl (Thalweg) (top of step) 43.00 90.15
D/S Water Surface Elev 43.00 90.46
D/S Water Surface Elev (boulder) 57.00 91.97
D/S Tailcrest or 1st Thalweg 57.00 91.16
D/S Water Surface Elev 60.00 91.98
Max Pool Depth 60.00 90.69
D/S Water Surface Elev 65.00 92.02
Outlet Invert (6ft mitre on pipe) 65.00 91.72
D/S Grade Ctrl (Thalweg) (top of baffle) 71.00 92.96
D/S Water Surface Elev 71.00 93.01
Outlet Culvert Top 71.00 100.00
Inlet Culvert Top 150.00 105.05
Inlet Culvert Invert (9ft mitre on substrate) 159.00 98.74
U/S Water Surface Elev 159.00 99.16
U/S Grade Ctrl (Thalweg) (first resting) 165.00 99.42
U/S Water Surface Elev 165.00 99.61
U/S Grade Ctrl (Thalweg) (at tributary) 181.00 100.22
U/S Water Surface Elev 181.00 100.65
U/S Grade Ctrl (Thalweg) 194.00 101.81
U/S Water Surface Elev 194.00 102.22
U/S Water Surface Elev 206.00 102.71
U/S Grade Ctrl (Thalweg) 206.00 102.19
U/S Grade Ctrl (Thalweg) 216.00 104.71
U/S Water Surface Elev 216.00 104.94
U/S Grade Ctrl (Thalweg) 243.00 106.23
U/S Water Surface Elev 243.00 107.03

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): 1.5
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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