Fish Passage Site 10103568

Coordinates (dec. deg.): 55.85384°, -133.06775°
Legal Description: C069S080E25
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 08, 2017

Survey SEA17-NPW02

Observers: Mark Eisenman, Elizabeth Flory, Kelly Petty

Overall Fish Passage Rating: Gray

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Site Observations:

  1. Improper bedding

Comments: Subsurface flow from inlet to outlet. Flows subsurface from upstream of culvert to a point just below this culvert outlet. Does have surface flow at times. Stream gradient taken from NPW01. for fish info see NPW01.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Gray
 
Length(ft): 89.8
Inlet Type: Mitered
Outlet Type: Mitered
Corrugation Depth(in.): 1.5
Corrugation Width(in.): 3.3
Condition Rating(1-5): 4
Approach Angle: 7.0
Sedimentation At Inlet: Yes
Inlet Substrate: Boulder
Outlet Substrate: Cobble
InletOutlet
Width(ft):8.0 8.5
Height(ft):4.6 5.9
Apron Length(ft):
Water Depth(ft): 0.0
Rustline Height(ft):1.5
Substrate Depth(ft):3.4 2.6
Backwatered?: No
Baffles Present: No
Embedded?: Yes
Embedded Depth(ft): 2.6
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio: 2.07
Culvert Gradient: 0.36%
Max Slope:
Max Slope Length:
 

Comments: No water in pipe. Top of culvert length 75.8
  Culvert Observations:
  1. Improper bedding

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:BoulderGravel
Subdominant:CobbleCobble
Stream Slope(deg.):1.56
Stream Flow Stage:Dry
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Downstream ordinary high water 50.0 3.40
Downstream ordinary high water 100.0 5.00
Downstream ordinary high water 150.0 3.20

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Road Elev 101.84
D/S Grade Ctrl (Thalweg) 0.00 84.76
D/S Water Surface Elev 0.00 84.86
D/S Tailcrest or 1st Thalweg 26.00 85.02
D/S Water Surface Elev 26.00 85.39
D/S Water Surface Elev 39.00 86.26
Outlet Invert (just below invert as invert dry) 39.00 85.27
Outlet Culvert Top 47.00 92.59
Inlet Culvert Top 122.80 92.86
Inlet Culvert Invert (dry) 128.80 87.72
U/S Grade Ctrl (Thalweg) (dry) 163.80 90.11

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): 4.45
Comments: No fish caught downstream. One cutthroat trout caught upstream of upstream culvert.

Fish Observations

No fish observations occurred during this survey.

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