Fish Passage Site 10103574

Coordinates (dec. deg.): 55.81389°, -133.03415°
Legal Description: C070S081E08
Region: Southeast
Road Name: North Prince of Wales Road

Datum: NAD83
Quad Name / ITM: Craig D-4
AWC Stream #: 103-90-10310-2005
Stream Name: Unnamed

Elevation:

Site Comments: None

Survey Date: Jun 13, 2017

Survey SEA17-NPW08

Observers: Elizabeth Flory, Kelly Petty

Overall Fish Passage Rating: Gray

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Site Observations:

  1. Culvert gradient gray

Comments: Large woody debris 50ft downstream, coho captured downstream, no fish upstream. Culvert looks close to being imbedded but does not have consistant substrate depth throughout barrel. Stream gradient taken over a short length due to dense foilage. Culvert does not appear to be a barrier at time of survey

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Gray
 
Length(ft): 128.8
Inlet Type: Mitered
Outlet Type: Mitered
Corrugation Depth(in.): 1.0
Corrugation Width(in.): 4.5
Condition Rating(1-5): 4
Approach Angle: 6.0
Sedimentation At Inlet: Yes
Inlet Substrate: Cobble
Outlet Substrate: Cobble
InletOutlet
Width(ft):10.5 11.0
Height(ft):7.4 8.0
Apron Length(ft):
Water Depth(ft): 0.5
Rustline Height(ft):2.4
Substrate Depth(ft):3.1 3.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio: 1.14
Culvert Gradient: 0.73%
Max Slope:
Max Slope Length:
 

Comments: Reach of 180ft should have been surveyed for stream gradient but only 45ft available. Stream gradient could be lower. Top of culvert length 105.8'. Culvert does not appear to have consistant bedload coverage thoughout barrel.
  Culvert Observations:
  1. Culvert gradient gray

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:BoulderCobble
Subdominant:CobbleBoulder
Stream Slope(deg.):2.92
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Upstream ordinary high water 40.0 8.10
Upstream ordinary high water 100.0 8.00
Upstream ordinary high water 150.0 12.00
Upstream ordinary high water 200.0 8.60

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Road Elev 117.67
D/S Grade Ctrl (Thalweg) (gravel bar) 0.00 91.66
D/S Water Surface Elev 0.00 92.24
D/S Water Surface Elev 13.00 92.31
D/S Tailcrest or 1st Thalweg (boulders) 13.00 91.64
Max Pool Depth 24.00 90.39
D/S Water Surface Elev 24.00 92.09
Outlet Invert (on substrate estimated end of mitre) 27.00 91.99
D/S Water Surface Elev 27.00 92.49
Outlet Culvert Top 39.00 100.00
Inlet Culvert Top 144.80 100.77
Inlet Culvert Invert (on substrate, first resting) 155.80 93.35
U/S Water Surface Elev 155.80 93.95
U/S Headwater (rocks) 174.80 94.27
U/S Water Surface Elev 174.80 94.58
U/S Water Surface Elev 200.80 95.34
U/S Grade Ctrl (Thalweg) (brushy beyond this point) 200.80 95.36

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): 2.6
Comments: no fish
 
Gear Type: Minnow Trap (B) Trap Duration(h): 1.6
Comments: 1 coho captured, not measrued, escaped, could be coho

Fish Observations

No fish observations occurred during this survey.

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