Fish Passage Site 10103539

Coordinates (dec. deg.): 55.60244°, -133.00682°
Legal Description: C072S081E28
Region: Southeast
Road Name: Big Salt Lake Road

Datum: NAD83
Quad Name / ITM: Craig C-4
AWC Stream #: 103-60-10350
Stream Name: Duke Creek

Elevation:

Site Comments: None

Survey Date: Jul 19, 2017

Survey SEA17-BSL23

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: Open bottom arch, concrete header at inlet. One 3-4inch fish observed 70ft downstream. Flow goes subsurface 100ft downstream for about 80ft then resurfaces. Lots of gravel deposits. Upstream has nice big large woody debris pools. Bedrock cascade 100ft upstream. Upstream gradient 8.23% over 101ft, Downstream gradient 3.86% .

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Structural steel plate) Fish Passage Rating: Gray
 
Length(ft): 94.0
Inlet Type: Headwall
Outlet Type: Headwall
Corrugation Depth(in.): 2.0
Corrugation Width(in.): 6.0
Condition Rating(1-5): 3
Approach Angle: 16.0
Sedimentation At Inlet: Yes
Inlet Substrate: Gravel
Outlet Substrate: Gravel
InletOutlet
Width(ft):19.6 20.1
Height(ft):9.9 14.9
Apron Length(ft):
Water Depth(ft): 1.22
Rustline Height(ft):0.0
Substrate Depth(ft):
Backwatered?: No
Baffles Present: No
Embedded?: Yes
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio: 2.47
Culvert Gradient: 0.40%
Max Slope:
Max Slope Length:
 

Comments: Embedded depth not measured. Culvert inverts buried, top of culvert contained in headwall.
  Culvert Observations:
  1. Culvert gradient gray

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:GravelGravel
Subdominant:BoulderBoulder
Stream Slope(deg.):3.86
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Downstream ordinary high water 50.0 7.00
Downstream ordinary high water 80.0 8.00
Downstream ordinary high water 100.0 5.00
Upstream ordinary high water 30.0 8.50
Upstream ordinary high water 60.0 8.00
Upstream ordinary high water 80.0 7.25

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Road Elev 121.18
D/S Grade Ctrl (Thalweg) 0.00 93.75
D/S Water Surface Elev 0.00 94.02
D/S Grade Ctrl (Thalweg) 57.00 95.66
D/S Water Surface Elev 57.00 95.95
D/S Grade Ctrl (Thalweg) 102.00 97.93
D/S Water Surface Elev 102.00 98.24
D/S Water Surface Elev 127.00 99.17
D/S Tailcrest or 1st Thalweg 127.00 98.68
D/S Water Surface Elev 133.00 99.15
Max Pool Depth 133.00 98.41
Outlet Culvert Top 158.00 117.70
D/S Water Surface Elev 158.00 99.63
Outlet Invert (on substrate) 158.00 98.38
Inlet Culvert Invert (on substrate) 252.00 104.47
U/S Water Surface Elev 252.00 105.32
Top of Pipe Inlet 252.00 118.08
U/S Water Surface Elev 266.00 105.49
U/S Grade Ctrl (Thalweg) 266.00 105.08
U/S Grade Ctrl (Thalweg) 303.00 106.40
U/S Water Surface Elev 303.00 106.74
U/S Grade Ctrl (Thalweg) (top of LWD step) 331.00 112.55
U/S Water Surface Elev 331.00 112.56
U/S Grade Ctrl (Thalweg) 367.00 113.42
U/S Water Surface Elev 367.00 113.80

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: no fish caught
 
Gear Type: Minnow Trap (B) Trap Duration(h): 1.5
Comments: no fish caught

Fish Observations

No fish observations occurred during this survey.

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