Fish Passage Site 10103566

Coordinates (dec. deg.): 55.57777°, -133.06123°
Legal Description: C072S081E31
Region: Southeast
Road Name: Klawock Airport Road

Datum: NAD83
Quad Name / ITM: Craig C-4
AWC Stream #: 103-60-10400
Stream Name: Airport Creek North

Elevation:

Site Comments: None

Survey Date: Jun 25, 2017

Survey SEA17-KAR01

Observers: Elizabeth Flory, Kelly Petty

Overall Fish Passage Rating: Gray

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Site Observations:

  1. Constriction ratio gray
  2. Culvert gradient gray
  3. Sediment accumulation
  4. Culvert sagging in middle

Comments: Nice habitat upstream, pools with large woody debris, grassy meadow, pond. Caterpillar has been driven down to inlet and outlet recently. Downstream low gradient grassy marsh. Stickleback captured downstream, coho upstream.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated plastic) Fish Passage Rating: Gray
 
Length(ft): 79.0
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 0.0
Corrugation Width(in.): 0.0
Condition Rating(1-5): 1
Approach Angle: 5.0
Sedimentation At Inlet: Yes
Inlet Substrate: Silt/Clay
Outlet Substrate: None
InletOutlet
Width(ft):4.5 4.2
Height(ft):4.2 4.2
Apron Length(ft):
Water Depth(ft): 1.9
Rustline Height(ft):0.0
Substrate Depth(ft):0.3 0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio: 0.71
Culvert Gradient: 1.05%
Max Slope:
Max Slope Length:
 

Comments: Smooth non-corrugated black plastic pipe. Pipe low in middle. Cannot see through pipe. Could be blocked with sediment. Pipe may be broken or filled with sediment, cannot see through. Inlet and Outlet pipe ends both raised up.
  Culvert Observations:
  1. Constriction ratio gray
  2. Culvert gradient gray
  3. Sediment accumulation
  4. Culvert sagging in middle

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:GravelSilt/Clay
Subdominant:Silt/ClayOrganic
Stream Slope(deg.):1.72
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Upstream ordinary high water 100.0 5.50
Upstream ordinary high water 110.0 5.75
Upstream ordinary high water 130.0 7.80

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Road Elev 114.97
D/S Grade Ctrl (Thalweg) 0.00 97.58
D/S Water Surface Elev 0.00 97.87
Max Pool Depth 12.00 95.53
D/S Water Surface Elev 12.00 96.00
Outlet Invert (on pipe) 35.00 95.83
D/S Water Surface Elev 35.00 97.73
Outlet Culvert Top 35.00 100.00
Inlet Culvert Top 115.00 100.83
Inlet Culvert Invert 115.00 96.47
U/S Water Surface Elev 115.00 98.13
U/S Water Surface Elev 134.00 98.04
U/S Grade Ctrl (Thalweg) 134.00 96.41
U/S Grade Ctrl (Thalweg) 159.00 98.89
U/S Water Surface Elev 159.00 99.13
U/S Grade Ctrl (Thalweg) 222.00 99.41
U/S Grade Ctrl (Thalweg) 222.00 99.55

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: 80ft upstream, 3 coho, 9 stickleback not measured
 
Gear Type: Minnow Trap (B) Trap Duration(h): 2.25
Comments: 20ft downstream,9 stickleback not measured

Fish Observations

Species: juvenile coho salmon Life History: Anadromous
Total Fish Observed: 3 Fish Measured: 3 Fork Lengths (mm) Min: 70 Max: 85 Mean: 76
Collected/Observed by Gear Type: Upstream Minnow Trap (3)  
 
Species: juvenile/adult stickleback-unspecified Life History: Unknown
Total Fish Observed: 1 Fish Measured: Fork Lengths (mm) Min: Max: Mean:
Collected/Observed by Gear Type: Downstream Minnow Trap (1)  

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