Fish Passage Site 10103560

Coordinates (dec. deg.): 55.55427°, -133.08623°
Legal Description: C073S081E10
Region: Southeast
Road Name: Hemlock Street

Datum: NAD83
Quad Name / ITM: Craig C-4
AWC Stream #: 103-60-10460
Stream Name: Unnamed

Elevation:

Site Comments: None

Survey Date: Jun 16, 2017

Survey SEA17-HEM01

Observers: Elizabeth Flory, Kelly Petty

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Site Observations:

  1. Constriction ratio gray
  2. Culvert gradient red
  3. Structural Problem

Comments: Inlet embedded but outlet is not. Dead cat in stream - downstream of Klawock trailer park. Upstream has nice low gradient pools.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated aluminum) Fish Passage Rating: Red
 
Length(ft): 50.3
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 1.0
Corrugation Width(in.): 2.0
Condition Rating(1-5): 2
Approach Angle: 0.0
Sedimentation At Inlet: Yes
Inlet Substrate: Gravel
Outlet Substrate: Gravel
InletOutlet
Width(ft):5.0 5.6
Height(ft):3.0 3.2
Apron Length(ft):
Water Depth(ft): 0.16
Rustline Height(ft):1.5
Substrate Depth(ft):2.0 2.4
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio: 0.59
Culvert Gradient: 1.07%
Max Slope:
Max Slope Length:
 

Comments: Culvert separating in middle.
  Culvert Observations:
  1. Constriction ratio gray
  2. Culvert gradient red
  3. Structural Problem
  4. Mechanical damage or joints parting

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:GravelGravel
Subdominant:BoulderBoulder
Stream Slope(deg.):1.5
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Upstream ordinary high water 40.0 8.20
Upstream ordinary high water 80.0 4.30
Upstream ordinary high water 120.0 12.60

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Road Elev 108.26
D/S Grade Ctrl (Thalweg) 0.00 95.68
D/S Water Surface Elev 0.00 95.89
D/S Tailcrest or 1st Thalweg (gravel bar) 12.00 96.04
D/S Water Surface Elev 12.00 96.20
D/S Water Surface Elev 19.00 96.40
Outlet Invert (on substrate) 19.00 96.56
Outlet Culvert Top 19.00 100.00
Inlet Culvert Top 70.30 100.54
D/S Water Surface Elev 70.30 97.71
Inlet Culvert Invert (on pipe, 1st resting) 70.30 97.73
U/S Grade Ctrl (Thalweg) 77.30 97.74
U/S Water Surface Elev 77.30 98.00
U/S Grade Ctrl (Thalweg) 127.30 98.63
U/S Water Surface Elev 127.30 98.75

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): 1.75
Comments: 1 coho
 
Gear Type: Minnow Trap (B) Trap Duration(h): 1.75

Fish Observations

Species: juvenile coho salmon Life History: Anadromous
Total Fish Observed: 1 Fish Measured: 1 Fork Lengths (mm) Min: 45 Max: 45 Mean: 45
Collected/Observed by Gear Type: Upstream Minnow Trap (1)  
 
Species: juvenile Dolly Varden Life History:
Total Fish Observed: 1 Fish Measured: 1 Fork Lengths (mm) Min: 120 Max: 120 Mean: 120
Collected/Observed by Gear Type: Downstream Minnow Trap (1)  

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