Fish Passage Site 10103579

Coordinates (dec. deg.): 55.78943°, -133.02029°
Legal Description: C070S081E20
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 15, 2017

Survey SEA17-NPW13

Observers: Elizabeth Flory, Kelly Petty

Overall Fish Passage Rating: Gray

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Comments: Baffles. Downstream has nice mix of deep pools, riffles, cascades, meaders. Upstream is marshy wetland beyond 300ft. Upstream has large woody debris and bedrock falls just abgove inlet. First resting pool is above falls.

Culvert Measurements

ID: 1 Structure Type: Pipe-arch (Structural steel plate) Fish Passage Rating: Gray
 
Length(ft): 112.2
Inlet Type: Mitered
Outlet Type: Mitered
Corrugation Depth(in.): 4.0
Corrugation Width(in.): 7.8
Condition Rating(1-5): 3
Approach Angle: 4.0
Sedimentation At Inlet: Yes
Inlet Substrate: Cobble
Outlet Substrate: Cobble
InletOutlet
Width(ft):18.0 17.78
Height(ft):10.54 11.0
Apron Length(ft):
Water Depth(ft): 0.32
Rustline Height(ft):4.0
Substrate Depth(ft):
Backwatered?: No
Baffles Present: Yes
Embedded?: No
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio: 3.19
Culvert Gradient: 3.41%
Max Slope:
Max Slope Length:
 

Comments: Substrate at inverts not measured. Top of culvert length 94.2'.

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:CobbleBoulder
Subdominant:BoulderCobble
Stream Slope(deg.):4.6
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Downstream ordinary high water 40.0 6.80
Downstream ordinary high water 90.0 4.20
Downstream ordinary high water 120.0 5.90

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Road Elev 110.62
D/S Grade Ctrl (Thalweg) 0.00 85.20
D/S Water Surface Elev 0.00 85.65
D/S Water Surface Elev 9.00 85.92
D/S Grade Ctrl (Thalweg) (pool) 9.00 85.06
D/S Grade Ctrl (Thalweg) 16.00 86.09
D/S Water Surface Elev 16.00 86.60
Outlet Invert 34.00 87.28
D/S Water Surface Elev 34.00 87.60
D/S Grade Ctrl (Thalweg) (on step in pipe - baffle) 43.00 88.42
D/S Water Surface Elev 43.00 88.72
Outlet Culvert Top 52.00 100.00
Inlet Culvert Top 146.20 103.21
Inlet Culvert Invert 155.20 93.23
U/S Water Surface Elev 155.20 93.48
U/S Headwater (base of falls) 187.20 93.82
U/S Water Surface Elev 187.20 94.16
U/S Grade Ctrl (Thalweg) 203.20 97.06
U/S Water Surface Elev 203.20 97.66
U/S Grade Ctrl (Thalweg) 259.20 98.78
U/S Water Surface Elev 259.20 99.24

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): 1.25
Comments: no fish caught
 
Gear Type: Minnow Trap (B) Trap Duration(h): 1.25
Comments: no fish caught

Fish Observations

No fish observations occurred during this survey.

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