Fish Passage Site 10103518

Coordinates (dec. deg.): 55.56131°, -133.07645°
Legal Description: C073S081E10
Region: Southeast
Road Name: Big Salt Lake Road

Datum: NAD83
Quad Name / ITM: Craig C-4
AWC Stream #: 103-60-10450
Stream Name: Trevor Creek

Elevation:

Site Comments: Site 10103549 on Cemetary Road is about 80 feet downstream from this culvert and perched.

Survey Date: Jun 10, 2017

Survey SEA17-BSL01

Observers: Mark Eisenman, Elizabeth Flory

Overall Fish Passage Rating: Gray

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Comments: Constructed bench downstream. Original corrugated steel pipe has been slip lined and lengthed with a smooth plastic liner with installed baffles.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated plastic) Fish Passage Rating: Gray
 
Length(ft): 142.2
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.):
Corrugation Width(in.):
Condition Rating(1-5): 3
Approach Angle: 5.0
Sedimentation At Inlet: Yes
Inlet Substrate: Gravel
Outlet Substrate: Gravel
InletOutlet
Width(ft):6.8 6.8
Height(ft):6.5 5.4
Apron Length(ft):
Water Depth(ft): 0.24
Rustline Height(ft):
Substrate Depth(ft):0.3 1.4
Backwatered?: No
Baffles Present: Yes
Embedded?: No
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio: 0.89
Culvert Gradient: 2.97%
Max Slope:
Max Slope Length:
 

Comments: Plastic pipe cemented inside steel pipe at inlet. Only plastic pipe at outlet. Water surface gradient through culvert is 1.70%.

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:GravelGravel
Subdominant:Silt/ClaySilt/Clay
Stream Slope(deg.):
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Upstream ordinary high water 70.0 7.60
Upstream ordinary high water 80.0 8.00
Upstream ordinary high water 100.0 7.80

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Road Elev 108.90
D/S Grade Ctrl (Thalweg) (Bedrock) 0.00 89.00
D/S Water Surface Elev 0.00 89.25
D/S Water Surface Elev 25.50 89.37
D/S Grade Ctrl (Thalweg) (End of outlet riffle) 25.50 88.99
Outlet Culvert Top (Top of exterior corrugation) 41.00 95.13
Outlet Invert (on substrate) 41.00 89.45
D/S Water Surface Elev 41.00 89.69
U/S Water Surface Elev 183.00 92.11
Inlet Culvert Invert (on substrate) 183.00 92.68
Inlet Culvert Top (Plastic inner pipe) 183.00 99.36
Inlet Culvert Top (Metal) 183.00 99.99
U/S Grade Ctrl (Thalweg) (First resting) 188.00 92.91
U/S Water Surface Elev 188.00 93.17

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): 1.3
Comments: No fish caught
 
Gear Type: Minnow Trap (B) Trap Duration(h): 1.4
Comments: No fish caught

Fish Observations

No fish observations occurred during this survey.

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