Fish Passage Site 10103527

Coordinates (dec. deg.): 55.67048°, -132.90140°
Legal Description: C071S082E31
Region: Southeast
Road Name: Big Salt Lake Road

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

Elevation:

Site Comments: Site is near milepost 14.

Survey Date: Jun 27, 2017

Survey SEA17-BSL10

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: Likely fish barrier 50ft downstream consisting of 25ft drop of steep steps of bedrock. Last one is over 10ft step. Upstream has nice small pools mixed with gravel riffle. Outfall to pool about 10 inches. No fish caught. Brushy upstream for gradient.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Red
 
Length(ft): 59.3
Inlet Type: Mitered
Outlet Type: Mitered
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 2.5
Condition Rating(1-5): 3
Approach Angle: 5.0
Sedimentation At Inlet: Yes
Inlet Substrate: None
Outlet Substrate: None
InletOutlet
Width(ft):3.9 3.9
Height(ft):4.0 4.0
Apron Length(ft):
Water Depth(ft): 0.03
Rustline Height(ft):0.75
Substrate Depth(ft):0.0 0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height: 0.77
Outfall Type: Free Fall In To Pool
Constriction Ratio: 1.4
Culvert Gradient: 6.39%
Max Slope:
Max Slope Length:
 

Comments: Top of culvert length, 59.3'.
  Culvert Observations:
  1. Outfall height red
  2. Culvert gradient red

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:GravelCobble
Subdominant:CobbleBoulder
Stream Slope(deg.):
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Upstream ordinary high water 60.0 2.75
Upstream ordinary high water 100.0 3.00
Upstream ordinary high water 120.0 2.80

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Road Elev 101.11
D/S Grade Ctrl (Thalweg) (First step of barrier falls) 0.00 85.01
D/S Water Surface Elev 0.00 85.45
D/S Tailcrest or 1st Thalweg (Tailwater control) 16.00 87.66
D/S Water Surface Elev 16.00 87.87
D/S Water Surface Elev 28.00 88.02
Max Pool Depth (Outfall pool) 28.00 87.01
Outlet Invert (On pipe) 35.00 88.76
D/S Water Surface Elev 35.00 88.79
Outlet Culvert Top 41.00 92.08
Inlet Culvert Top 100.30 95.87
Inlet Culvert Invert (On pipe) 106.30 91.90
U/S Water Surface Elev 106.30 92.03
U/S Grade Ctrl (Thalweg) 118.30 92.62
U/S Water Surface Elev 118.30 92.75
U/S Water Surface Elev 126.30 92.70
U/S Thalweg (First resting pool) 126.30 92.15
U/S Grade Ctrl (Thalweg) 134.30 92.76
U/S Water Surface Elev 134.30 92.99

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: 50ft upstream, no fish caught
 
Gear Type: Minnow Trap (B) Trap Duration(h): 1.0
Comments: 20ft downstream, no fish caught

Fish Observations

No fish observations occurred during this survey.

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