Fish Passage Site 10103569

Coordinates (dec. deg.): 55.83014°, -133.04465°
Legal Description: C070S081E06
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-NPW03

Observers: Mark Eisenman, 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 gray
  3. Constriction ratio red
  4. Hydraulic flows exceeded capacity

Comments: Bedrock chutes and potential drop forming barrier dowvstream. No fish observed

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Red
 
Length(ft): 90.8
Inlet Type: Mitered
Outlet Type: Mitered
Corrugation Depth(in.): 1.0
Corrugation Width(in.): 3.0
Condition Rating(1-5): 4
Approach Angle: 19.0
Sedimentation At Inlet: Yes
Inlet Substrate: None
Outlet Substrate: None
InletOutlet
Width(ft):2.0 1.9
Height(ft):1.7 1.8
Apron Length(ft):
Water Depth(ft): 0.08
Rustline Height(ft):1.0
Substrate Depth(ft):0.0 0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height: 3.92
Outfall Type: Free Fall In To Pool
Constriction Ratio: 0.38
Culvert Gradient: 5.64%
Max Slope:
Max Slope Length:
 

Comments: 2ft mitres. Issues with constriction, gradient and outfall height.
  Culvert Observations:
  1. Outfall height red
  2. Culvert gradient red
  3. Constriction ratio red
  4. Hydraulic flows exceeded capacity

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:CobbleBoulder
Subdominant:GravelCobble
Stream Slope(deg.):
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Upstream ordinary high water 100.0 4.60
Upstream ordinary high water 150.0 5.00
Upstream ordinary high water 200.0 6.50

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Road Elev 103.76
D/S Grade Ctrl (Thalweg) (below boulders) 0.00 81.96
D/S Water Surface Elev 0.00 82.08
D/S Tailcrest or 1st Thalweg (boulders) 13.00 86.53
D/S Water Surface Elev 13.00 86.67
D/S Water Surface Elev 18.00 86.72
Max Pool Depth 18.00 86.04
Outlet Invert (on substrate) 20.60 90.56
D/S Water Surface Elev 20.60 90.64
Outlet Culvert Top 23.00 92.77
Inlet Culvert Top 113.80 97.57
Inlet Culvert Invert (on substrate) 116.20 95.68
U/S Water Surface Elev 116.20 95.84
U/S Grade Ctrl (Thalweg) 140.80 97.45
U/S Water Surface Elev 140.80 97.57

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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