Fish Passage Site 10103584

Coordinates (dec. deg.): 55.76274°, -132.98491°
Legal Description: C070S081E34
Region: Southeast
Road Name: North Prince of Wales Road

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

Elevation:

Site Comments: None

Survey Date: Jun 28, 2017

Survey SEA17-NPW18

Observers: Elizabeth Flory, Kelly Petty

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Site Observations:

  1. Outfall height red
  2. Culvert gradient red

Comments: Upstream the main channel runs alongside parking area in front of old gravel pit. Shallow, few pools and some subsurface flow. Two tributaries upstream - one flows trhough gravel pit, one runs along road ditch. Outfall 2ft high to deep >4ft pool, Downstream goes partly subsurface after 80ft. 5ft width changes to 2ft.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Red
 
Length(ft): 86.3
Inlet Type: Mitered
Outlet Type: Mitered
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 3.0
Condition Rating(1-5): 3
Approach Angle: 20.0
Sedimentation At Inlet: No
Inlet Substrate: None
Outlet Substrate: None
InletOutlet
Width(ft):4.5 4.5
Height(ft):4.3 4.5
Apron Length(ft):
Water Depth(ft): 0.05
Rustline Height(ft):2.0
Substrate Depth(ft):0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height: 2.05
Outfall Type: Free Fall In To Pool
Constriction Ratio: 0.87
Culvert Gradient: 10.80%
Max Slope:
Max Slope Length:
 

Comments: Outlet pool too deep to measure safely. Outlet height and width not measured due to deep pool in frnt, steep pipe. Algae in pipe - slippery. Looked same as inlet. Top of culvert length 75.3'.
  Culvert Observations:
  1. Outfall height red
  2. Culvert gradient red

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:BoulderCobble
Subdominant:GravelBoulder
Stream Slope(deg.):
Stream Flow Stage:Low
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Downstream ordinary high water 80.0 5.00
Upstream ordinary high water 30.0 7.00
Upstream ordinary high water 150.0 4.50
Upstream ordinary high water 170.0 4.00

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Road Elev 97.69
D/S Tailcrest or 1st Thalweg 0.00 78.50
D/S Water Surface Elev 0.00 78.70
D/S Water Surface Elev (max pool depth too deep to measure) 10.00 78.89
Outlet Invert (on pipe) 30.00 80.89
D/S Water Surface Elev 30.00 80.94
Outlet Culvert Top 35.00 85.90
Inlet Culvert Top 110.30 93.95
Inlet Culvert Invert 116.30 90.12
U/S Water Surface Elev 116.30 90.30
U/S Grade Ctrl (Thalweg) 121.30 90.93
U/S Water Surface Elev 121.30 91.17
U/S Grade Ctrl (Thalweg) 144.30 92.39
D/S Water Surface Elev 144.30 92.70

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): 1.75
Comments: 50ft upstream, no fish
 
Gear Type: Minnow Trap (B) Trap Duration(h): 1.75
Comments: 20ft downstream, no fish

Fish Observations

No fish observations occurred during this survey.

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