Fish Passage Site 10103540

Coordinates (dec. deg.): 55.60361°, -133.00426°
Legal Description: C072S081E28
Region: Southeast
Road Name: Big Salt Lake Road

Datum: NAD83
Quad Name / ITM: Craig C-4
AWC Stream #: 103-60-10350-2071
Stream Name: Unnamed

Elevation:

Site Comments: None

Survey Date: Jul 19, 2017

Survey SEA17-BSL24

Observers: Elizabeth Flory, Mark Eisenman

Overall Fish Passage Rating: Green

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Comments: Stream splits 60ft upstream. Culvert close to embedded. Stream gradient length short due to dense foliage.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Green
 
Length(ft): 94.3
Inlet Type: Mitered
Outlet Type: Mitered
Corrugation Depth(in.): 1.0
Corrugation Width(in.): 3.0
Condition Rating(1-5): 3
Approach Angle: 3.0
Sedimentation At Inlet: Yes
Inlet Substrate: Cobble
Outlet Substrate: Gravel
InletOutlet
Width(ft):6.75 6.5
Height(ft):5.5 5.2
Apron Length(ft):
Water Depth(ft): 0.06
Rustline Height(ft):1.3
Substrate Depth(ft):1.25 1.3
Backwatered?: No
Baffles Present: Yes
Embedded?: Maybe
Embedded Depth(ft): 1.25
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio: 1.65
Culvert Gradient: 4.49%
Max Slope:
Max Slope Length:
 

Comments: Sedimentation not recorded. Close to being embedded. 16-20ft fill over culvert. Baffles holding sediment. Top of culvert length 85'.

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:GravelGravel
Subdominant:SandBoulder
Stream Slope(deg.):4.64
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Downstream ordinary high water 10.0 3.25
Downstream ordinary high water 70.0 3.75
Downstream ordinary high water 90.0 3.50
Upstream ordinary high water 30.0 3.00
Upstream ordinary high water 40.0 3.75
Upstream ordinary high water 50.0 5.50

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
D/S Grade Ctrl (Thalweg) 0.00 95.76
D/S Water Surface Elev 0.00 95.90
D/S Water Surface Elev 48.00 97.70
D/S Thalweg 48.00 98.55
D/S Grade Ctrl (Thalweg) 67.00 98.78
D/S Water Surface Elev 67.00 99.01
Outlet Invert 76.00 99.37
D/S Water Surface Elev 76.00 99.43
Outlet Culvert Top 81.00 104.51
Inlet Culvert Top 175.30 108.33
U/S Water Surface Elev 180.30 103.16
Inlet Culvert Invert 180.30 102.93
U/S Grade Ctrl (Thalweg) (edge of pool, first resting) 183.30 103.10
U/S Water Surface Elev 183.30 103.25

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): 2.25
Comments: 1 cutthroat, 20ft upstream
 
Gear Type: Minnow Trap (B) Trap Duration(h): 2.25
Comments: set 60ft downstream, no fish caught

Fish Observations

Species: juvenile cutthroat trout Life History:
Total Fish Observed: 1 Fish Measured: 1 Fork Lengths (mm) Min: 102 Max: 102 Mean: 102
Collected/Observed by Gear Type: Upstream Minnow Trap (1)  

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