Fish Passage Site 10103519

Coordinates (dec. deg.): 55.55490°, -133.08414°
Legal Description: C073S081E10
Region: Southeast
Road Name: Big Salt Lake Road

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

Elevation:

Site Comments: Beaver ponds upstream and downstream. Black plastic pipe. Site 10103517 is about 175 feet upstream from this site and site 10103560 is about 450 feet downstream.

Survey Date: Jun 16, 2017

Survey SEA17-BSL02

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
  3. Constriction ratio gray
  4. Beaver Activity

Comments: Downstream from trailer park in Klawock. Plastic trash in creek.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated plastic) Fish Passage Rating: Red
 
Length(ft): 56.4
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.):
Corrugation Width(in.):
Condition Rating(1-5): 5
Approach Angle: 0.0
Sedimentation At Inlet: Yes
Inlet Substrate: None
Outlet Substrate: None
InletOutlet
Width(ft):4.0 3.1
Height(ft):3.87 4.5
Apron Length(ft):
Water Depth(ft): 0.04
Rustline Height(ft):
Substrate Depth(ft):0.0 0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height: 1.11
Outfall Type: Free Fall on To Rip Rap
Constriction Ratio: 0.55
Culvert Gradient: 3.88%
Max Slope:
Max Slope Length:
 

Comments: Black plastic pipe in good shape. Upstream hard to follow past deep pond in grassy meadow. Downstream gradient shot over a short distance downstream.
  Culvert Observations:
  1. Outfall height red
  2. Culvert gradient red
  3. Constriction ratio gray
  4. Beaver Activity

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:OrganicCobble
Subdominant:Silt/ClayOrganic
Stream Slope(deg.):3.52
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Downstream ordinary high water 10.0 7.80
Downstream ordinary high water 15.0 6.00
Downstream ordinary high water 20.0 8.00

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Road Elev 109.31
D/S Grade Ctrl (Thalweg) 0.00 98.37
D/S Water Surface Elev 0.00 98.65
D/S Grade Ctrl (Thalweg) 8.00 99.19
D/S Water Surface Elev 8.00 99.25
D/S Tailcrest or 1st Thalweg 39.00 99.98
D/S Water Surface Elev 39.00 100.02
D/S Water Surface Elev 44.00 99.03
Max Pool Depth 44.00 98.54
D/S Grade Ctrl (Thalweg) (rip rap) 48.00 99.70
D/S Water Surface Elev 48.00 99.77
Outlet Invert (on pipe) 49.00 100.10
D/S Water Surface Elev 49.00 100.14
Outlet Culvert Top 49.00 104.34
Inlet Culvert Top 105.40 106.51
Inlet Culvert Invert 105.40 102.33
U/S Water Surface Elev 105.40 102.38
U/S Thalweg (Tailcrest) 108.40 102.45
U/S Water Surface Elev 108.40 102.60
U/S Water Surface Elev 119.40 102.53
U/S Thalweg (pool) 119.40 100.61

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. 20 feet upstream of inlet.
 
Gear Type: Minnow Trap (B) Trap Duration(h): 1.0
Comments: 1 dolly varden. 10ft downstream of culvert.

Fish Observations

Species: juvenile Dolly Varden Life History:
Total Fish Observed: 1 Fish Measured: 1 Fork Lengths (mm) Min: 210 Max: 210 Mean: 210
Collected/Observed by Gear Type: Downstream Minnow Trap (1)  

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