Fish Passage Site 10103597

Coordinates (dec. deg.): 55.72565°, -132.94186°
Legal Description: C071S081E11
Region: Southeast
Road Name: North Prince of Wales Road

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

Elevation:

Site Comments: None

Survey Date: Jul 13, 2017

Survey SEA17-NPW31

Observers: Elizabeth Flory, Kelly Petty

Overall Fish Passage Rating: Gray

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Site Observations:

  1. Beaver Activity
  2. Constriction ratio gray
  3. Culvert gradient red
  4. Outfall height gray

Comments: At 800ft road summit. Beaver ponds upstream and downstream. Outlet lies below small hump so water pooled in outlet. Inlet has pond 30ft from inlet. Only two width measurements taken due to ponds.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Gray
 
Length(ft): 83.0
Inlet Type: Mitered
Outlet Type: Mitered
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 1.5
Condition Rating(1-5): 3
Approach Angle: 0.0
Sedimentation At Inlet: No
Inlet Substrate: None
Outlet Substrate: None
InletOutlet
Width(ft):2.0 2.0
Height(ft):2.0 2.0
Apron Length(ft):
Water Depth(ft): 0.31
Rustline Height(ft):
Substrate Depth(ft):0.0 0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height: 0.06
Outfall Type: Hydraulic Jump
Constriction Ratio: 0.6
Culvert Gradient: 2.30%
Max Slope:
Max Slope Length:
 

Comments: Top of culvert length 79'. Slight hump at outlet likely buried beaver log, not enough to backwater. Outfall height from invert water surface to below log hump is 0.54ft.
  Culvert Observations:
  1. Beaver Activity
  2. Constriction ratio gray
  3. Culvert gradient red

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:Silt/ClaySilt/Clay
Subdominant:OrganicOrganic
Stream Slope(deg.):
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Upstream ordinary high water 20.0 2.95
Upstream ordinary high water 30.0 3.69

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Road Elev 114.97
D/S Grade Ctrl (Thalweg) 0.00 91.89
D/S Water Surface Elev 0.00 92.96
D/S Water Surface Elev 13.00 98.19
D/S Grade Ctrl (Thalweg) 13.00 97.75
D/S Water Surface Elev 37.00 98.19
D/S Grade Ctrl (Thalweg) (pool) 37.00 94.46
D/S Tailcrest or 1st Thalweg (rocks) 46.00 97.15
D/S Water Surface Elev 46.00 97.25
D/S Water Surface Elev 47.00 97.30
Max Pool Depth 47.00 96.55
D/S Water Surface Elev 50.00 97.78
D/S Grade Ctrl (Thalweg) (log hump) 50.00 97.60
D/S Water Surface Elev 51.00 97.84
Outlet Invert (on pipe) 51.00 97.53
Outlet Culvert Top 53.00 100.00
Inlet Culvert Top 132.00 101.41
Inlet Culvert Invert (on pipe) 134.00 99.44
U/S Water Surface Elev 134.00 99.48
U/S Grade Ctrl (Thalweg) (on logs) 138.00 101.79
U/S Water Surface Elev 138.00 102.02
U/S Water Surface Elev 149.00 102.08
U/S Grade Ctrl (Thalweg) 149.00 102.58

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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