Fish Passage Site 10103530

Coordinates (dec. deg.): 55.64191°, -132.93515°
Legal Description: C072S081E12
Region: Southeast
Road Name: Big Salt Lake Road

Datum: NAD83
Quad Name / ITM: Craig C-3
AWC Stream #:
Stream Name: Unnamed

Elevation:

Site Comments: Downstream has log jam steps dropping about 10ft vertically over 30ft horizontal. Steep stream sides. Dolly Varden captured downstream. Upstream gets narrower and steeper with cascades. Too steep and brushy for full survey but did survey pipe tops. Shallow pools upstream and downstream.

Survey Date: Jul 10, 2017

Survey SEA17-BSL13

Observers: Elizabeth Flory, Kelly Petty

Overall Fish Passage Rating: Gray

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Comments: Surveyed pipe tops only. Baffles every 6ft.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Gray
 
Length(ft): 140.0
Inlet Type: Mitered
Outlet Type: Mitered
Corrugation Depth(in.): 1.0
Corrugation Width(in.): 3.0
Condition Rating(1-5): 4
Approach Angle: 8.0
Sedimentation At Inlet: Yes
Inlet Substrate: Cobble
Outlet Substrate: Boulder
InletOutlet
Width(ft):11.9 12.2
Height(ft):9.25 10.6
Apron Length(ft):
Water Depth(ft): 0.3
Rustline Height(ft):1.0
Substrate Depth(ft):2.75 1.6
Backwatered?: No
Baffles Present: Yes
Embedded?: No
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio: 1.25
Culvert Gradient: 10.37%
Max Slope:
Max Slope Length:
 

Comments: Baffles every 6ft in pipe. Some large boulders in pipe. Only surveyed pipe tops. Water depth at outlet measured with ruler.

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:CobbleBoulder
Subdominant:BoulderCobble
Stream Slope(deg.):
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Upstream ordinary high water 20.0 9.00
Upstream ordinary high water 40.0 10.40
Upstream ordinary high water 80.0 9.25

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Road Elev 102.36
Top of Pipe Inlet 0.00 100.00
Outlet Culvert Top 140.00 85.48

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): 1.5
Comments: 20ft upstream no fish caught
 
Gear Type: Minnow Trap (B) Trap Duration(h): 1.5
Comments: 30ft downstream, one dolly varden

Fish Observations

Species: juvenile Dolly Varden Life History:
Total Fish Observed: 1 Fish Measured: 1 Fork Lengths (mm) Min: 55 Max: 55 Mean: 55
Collected/Observed by Gear Type: Downstream Minnow Trap (1)  

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