Fish Passage Site 10103536

Coordinates (dec. deg.): 55.58801°, -133.03400°
Legal Description: C072S081E32
Region: Southeast
Road Name: Big Salt Lake Road

Datum: NAD83
Quad Name / ITM: Craig C-4
AWC Stream #:
Stream Name: Unnamed

Elevation:

Site Comments: None

Survey Date: Jul 17, 2017

Survey SEA17-BSL20

Observers: Elizabeth Flory, Kelly Petty

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Site Observations:

  1. Culvert gradient red
  2. Outfall height red

Comments: Lots of logging slash at outlet, powerline. Likely bedrock barrier downstream. Upstream steep, shallow cascades, very little pool habitat. Bedrock steps downstream likely barrier, about 10ft high, step at bottom about 4ft high.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Red
 
Length(ft): 86.5
Inlet Type: Mitered
Outlet Type: Mitered
Corrugation Depth(in.): 1.0
Corrugation Width(in.): 3.0
Condition Rating(1-5): 3
Approach Angle: 16.0
Sedimentation At Inlet: No
Inlet Substrate: None
Outlet Substrate: None
InletOutlet
Width(ft):6.0 6.0
Height(ft):6.0 6.0
Apron Length(ft):
Water Depth(ft): 0.03
Rustline Height(ft):0.8
Substrate Depth(ft):0.0 0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height: 0.98
Outfall Type: Free Fall In To Pool
Constriction Ratio: 1.68
Culvert Gradient: 10.75%
Max Slope:
Max Slope Length:
 

Comments: Culvert length measured over road. Top of culvert length = 76.2'.
  Culvert Observations:
  1. Culvert gradient red
  2. Outfall height red

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:BoulderBedrock
Subdominant:GravelBoulder
Stream Slope(deg.):
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Upstream ordinary high water 20.0 4.50
Upstream ordinary high water 50.0 3.25
Upstream ordinary high water 70.0 3.00

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Road Elev 109.64
D/S Grade Ctrl (Thalweg) 0.00 89.91
D/S Water Surface Elev 0.00 90.21
Max Pool Depth 9.00 90.74
D/S Water Surface Elev (pool) 9.00 92.49
Outlet Invert (on pipe) 13.00 93.44
D/S Water Surface Elev 13.00 93.47
Outlet Culvert Top 20.00 100.00
Inlet Culvert Top 90.00 108.09
Inlet Culvert Invert (on pipe) 97.00 102.74
U/S Water Surface Elev 97.00 102.84
U/S Water Surface Elev 99.00 103.10
U/S Grade Ctrl (Thalweg) (1st resting) 99.00 102.65
U/S Grade Ctrl (Thalweg) 111.00 104.05
U/S Water Surface Elev 111.00 104.50

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): 1.0
Comments: 10ft upstream, no fish
 
Gear Type: Minnow Trap (B) Trap Duration(h): 0.5
Comments: 5ft downstream, no fish

Fish Observations

No fish observations occurred during this survey.

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