Fish Passage Site 20301013

Coordinates (dec. deg.): 60.50732°, -150.85635°
Legal Description: S005N009W21
Region: South Central
Road Name: Stephens Drive

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

Elevation:

Site Comments: None

Multiple surveys have been conducted at this site — click on the drop down
arrow to the right of the survey date below to choose a different report for this site.

Survey KPCS1-NK085

Observers: Cecil Rich, Tom Sigurdsson, James Maple

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools:
Construction Year:


Comments: About a two inch perch at outlet. Inlet peeled open about 2 feet on top 1/2 of pipe. Eight inch overflow pipe about 4 feet higher than main pipe.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated Metal) Fish Passage Rating:
 
Length(ft): 40.0
Inlet Type: Projecting
Outlet Type:
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 3.0
Condition Rating(1-5):
Approach Angle:
Sedimentation At Inlet:
Inlet Substrate: None
Outlet Substrate: None
InletOutlet
Width(ft):4.1 4.1
Height(ft):3.98 4.08
Apron Length(ft):
Water Depth(ft):0.25 0.21
Rustline Height(ft):
Substrate Depth(ft):0.0 0.0
Backwatered?:
Baffles Present: No
Embedded?: No
Outfall Height: 0.29
Outfall Type:
Constriction Ratio: 0.96
Culvert Gradient: 4.75%
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. Structural Problem

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:GravelGravel
Subdominant:GravelGravel
Stream Slope(deg.):
Stream Flow Stage:
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Downstream ordinary high water 7.3 8.90
Downstream ordinary high water 50.0 4.30
Downstream ordinary high water 100.0 6.00
Upstream ordinary high water 5.0 4.70
Upstream ordinary high water 59.0 4.80
Upstream ordinary high water 100.0 3.70

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
D/S Thalweg 0.00 100.0 92.73
D/S Water Surface Elev 0.00 100.0 93.00
D/S OHW Elev 0.00 100.0 93.98
D/S Thalweg 50.00 50.0 94.46
D/S Water Surface Elev 50.00 50.0 94.90
D/S OHW Elev 50.00 50.0 95.29
D/S Tailcrest or 1st Thalweg 92.70 7.3 96.47
D/S Water Surface Elev 92.70 7.3 96.83
OHW Left Bank 92.70 7.3 97.35
OHW Left Bank 95.00 5.0 97.39
OHW Left Bank 95.00 5.0 96.85
Max Pool Depth 95.00 5.0 95.85
D/S Thalweg 95.00 5.0 95.85
Outlet Invert 1 100.00 0.0 96.93
Outlet Thalweg 1 100.00 0.0 96.93
Outlet Rustline Height 1 100.00 0.0 97.33
Outlet Culvert Top 1 100.00 0.0 101.01
Road Elev 120.00 104.72
Road Elev 120.00 104.81
Inlet Culvert Top 1 140.00 0.0 102.81
Inlet Rustline Height 1 140.00 0.0 99.37
Inlet Culvert Invert 1 140.00 0.0 98.83
Inlet Thalweg 1 140.00 0.0 98.83
U/S Thalweg 1 141.00 1.0 98.99
U/S Water Surface Elev 1 145.00 5.0 99.33
U/S Thalweg 1 145.00 5.0 98.95
U/S OHW elevation 1 145.00 5.0 99.49
U/S Thalweg 1 148.20 8.2 98.93
U/S Thalweg 199.00 59.0 100.60
U/S Water Surface Elev 199.00 59.0 100.79
U/S Headwater 199.00 59.0 101.12
U/S Thalweg 240.00 100.0 102.06
U/S Water Surface Elev 240.00 100.0 102.33
U/S Headwater 240.00 100.0 102.64

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): 1.25
 
Gear Type: Minnow Trap (B) Trap Duration(h): 1.07

Fish Observations

Species: juvenile coho salmon Life History: Anadromous
Total Fish Observed: 26 Fish Measured: 13 Fork Lengths (mm) Min: 42 Max: 65 Mean: 52
Collected/Observed by Gear Type: Downstream Minnow Trap (16)  Upstream Minnow Trap (10)  

Photos

No photos available.

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