Fish Passage Site 10103537

Coordinates (dec. deg.): 55.59867°, -133.01897°
Legal Description: C072S081E29
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-BSL21

Observers: Elizabeth Flory, Kelly Petty

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Site Observations:

  1. Outfall height red
  2. Culvert gradient red

Comments: Last baffle at outlet has scoured away created a barrier outfall. Upstream has nice pool at inlet then some large woody debris steps. Downstream has a few boulder step grade points, mostly low gradient riffle, lots of gravel. Small tributaries come in downstream.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Red
 
Length(ft): 117.0
Inlet Type: Mitered
Outlet Type: Mitered
Corrugation Depth(in.): 1.0
Corrugation Width(in.): 3.0
Condition Rating(1-5): 3
Approach Angle: 5.0
Sedimentation At Inlet: Yes
Inlet Substrate: Gravel
Outlet Substrate: Gravel
InletOutlet
Width(ft):9.0 9.8
Height(ft):8.4 7.8
Apron Length(ft):
Water Depth(ft): 0.53
Rustline Height(ft):1.3
Substrate Depth(ft):0.6 2.0
Backwatered?: No
Baffles Present: Yes
Embedded?: No
Outfall Height: 1.4
Outfall Type: Free Fall In To Pool
Constriction Ratio: 2.0
Culvert Gradient: 13.05%
Max Slope:
Max Slope Length:
 

Comments: Below last baffle at outlet has scoured away any substrate and created a 1.4 outlet perch. Top of culvert length 93'.
  Culvert Observations:
  1. Outfall height red
  2. Culvert gradient red

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:GravelGravel
Subdominant:CobbleCobble
Stream Slope(deg.):
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Upstream ordinary high water 40.0 3.50
Upstream ordinary high water 60.0 5.25
Upstream ordinary high water 70.0 5.00

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Road Elev 121.51
D/S Grade Ctrl (Thalweg) 0.00 89.04
D/S Water Surface Elev 0.00 89.15
D/S Water Surface Elev 4.00 89.28
D/S Grade Ctrl (Thalweg) 4.00 89.03
D/S Tailcrest or 1st Thalweg 6.00 89.41
D/S Water Surface Elev 6.00 89.62
Max Pool Depth 11.00 89.27
D/S Water Surface Elev 11.00 89.68
Outlet Invert (on substrate) 14.00 89.11
D/S Water Surface Elev 14.00 89.64
Misc. (On baffle) 26.00 90.70
Misc. (Baffle water surface) 26.00 91.09
Outlet Culvert Top 26.00 100.01
Inlet Culvert Top 119.00 112.15
Inlet Culvert Invert (on substrate, first resting) 131.00 105.46
U/S Water Surface Elev 131.00 105.53

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: no fish caught
 
Gear Type: Minnow Trap (B) Trap Duration(h): 0.75
Comments: no fish caught

Fish Observations

No fish observations occurred during this survey.

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