Fish Passage Site 10103594

Coordinates (dec. deg.): 55.73275°, -132.96654°
Legal Description: C071S081E10
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 12, 2017

Survey SEA17-NPW28

Observers: Elizabeth Flory, Kelly Petty

Overall Fish Passage Rating: Gray

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Comments: Nice big outlet pool 2ft deep. Tailwater control consists of big boulders forming 3ft high step then another deep pool then fairly fast flowing riffle, twisty channel. Upstream similar with 40 degree bends, fast riffle, a few pools. 10 baffles in pipe.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Gray
 
Length(ft): 114.0
Inlet Type: Mitered
Outlet Type: Mitered
Corrugation Depth(in.): 1.0
Corrugation Width(in.): 3.0
Condition Rating(1-5): 4
Approach Angle: 3.0
Sedimentation At Inlet: No
Inlet Substrate: None
Outlet Substrate: None
InletOutlet
Width(ft):6.1 6.0
Height(ft):6.0 6.0
Apron Length(ft):
Water Depth(ft): 0.75
Rustline Height(ft):1.4
Substrate Depth(ft):0.0 0.0
Backwatered?: No
Baffles Present: Yes
Embedded?: No
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio: 1.09
Culvert Gradient: 6.43%
Max Slope:
Max Slope Length:
 

Comments: Top of culvert length 95'. Upstream too brushy for gradient survey.

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:CobbleCobble
Subdominant:BoulderBoulder
Stream Slope(deg.):
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Upstream ordinary high water 30.0 5.50
Upstream ordinary high water 50.0 5.00
Upstream ordinary high water 70.0 6.25

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Road Elev 112.47
D/S Grade Ctrl (Thalweg) 0.00 91.61
D/S Water Surface Elev 0.00 92.00
D/S Tailcrest or 1st Thalweg (boulders) 10.00 92.64
D/S Water Surface Elev 10.00 94.18
D/S Water Surface Elev 20.00 94.26
Max Pool Depth 20.00 92.20
Outlet Invert (on pipe) 24.00 93.53
D/S Water Surface Elev 24.00 94.28
Outlet Culvert Top 34.00 100.00
Inlet Culvert Top 129.00 106.11
Inlet Culvert Invert (on pipe) 139.00 100.61
U/S Water Surface Elev 139.00 101.39
U/S Grade Ctrl (Thalweg) 142.00 101.90
U/S Water Surface Elev 142.00 102.21
U/S Grade Ctrl (Thalweg) 167.00 102.71
U/S Water Surface Elev 167.00 103.23

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: 50ft upstream, no fish
 
Gear Type: Minnow Trap (B) Trap Duration(h): 1.5
Comments: 20 ft downstream, no fish

Fish Observations

No fish observations occurred during this survey.

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