Fish Passage Site 20301025

Coordinates (dec. deg.): 60.23352°, -151.38599°
Legal Description: S002N012W28
Region: South Central
Road Name: Sterling Highway

Datum: NAD83
Quad Name / ITM: Kenai A-4
AWC Stream #:
Stream Name: Unnamed

Elevation:

Site Comments: Marsh upstream with poorly defined channel.

Survey Date: Jul 17, 2001

Survey KPCS1-SK034

Observers: Cecil Rich, Doug Hill

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools:
Construction Year:


Comments: Marsh upstream with poorly defined channel. Damaged 4 foot section detached at left overflow.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated Metal) Fish Passage Rating:
 
Length(ft): 90.82
Inlet Type: Projecting
Outlet Type:
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 2.6
Condition Rating(1-5):
Approach Angle:
Sedimentation At Inlet:
Inlet Substrate: Gravel
Outlet Substrate: Gravel
InletOutlet
Width(ft):5.6 6.2
Height(ft):5.21 5.07
Apron Length(ft):
Water Depth(ft):0.75 0.46
Rustline Height(ft):
Substrate Depth(ft):0.54 0.38
Backwatered?:
Baffles Present: No
Embedded?: No
Outfall Height: -0.5
Outfall Type:
Constriction Ratio: 1.01
Culvert Gradient: 2.62%
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. None of this type

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:Silt/ClayCobble
Subdominant:NoneGravel
Stream Slope(deg.):
Stream Flow Stage:
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Downstream ordinary high water 5.5 9.10
Downstream ordinary high water 42.0 5.40
Downstream ordinary high water 113.0 4.00
Upstream ordinary high water 5.0 5.30
Upstream ordinary high water 50.0 6.50
Upstream ordinary high water 100.0 4.60

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
D/S Thalweg 82.83
D/S Thalweg 0.00 113.0 79.46
D/S Water Surface Elev 0.00 113.0 80.71
D/S OHW Elev 0.00 113.0 81.35
D/S Water Surface Elev 71.00 42.0 81.90
D/S Thalweg 71.00 42.0 81.23
D/S OHW Elev 71.00 42.0 82.81
D/S Tailcrest or 1st Thalweg 107.50 5.5 83.23
D/S Water Surface Elev 107.50 5.5 83.60
OHW Left Bank 107.50 5.5 84.03
OHW Left Bank 108.00 5.0 84.02
OHW Left Bank 108.00 5.0 83.56
Max Pool Depth 108.00 5.0 82.83
Outlet Thalweg 1 113.00 0.0 82.90
Outlet Invert 1 113.00 0.0 82.60
Outlet Rustline Height 1 113.00 0.0 84.08
Outlet Culvert Top 1 113.00 0.0 87.67
Road Elev 158.00 97.60
Road Elev 158.00 97.77
Inlet Culvert Top 1 203.00 0.0 90.19
Inlet Thalweg 1 203.00 0.0 84.04
Inlet Culvert Invert 1 203.00 0.0 84.98
Inlet Rustline Height 1 203.00 0.0 85.23
U/S Thalweg 1 204.00 1.0 84.19
U/S Thalweg 1 208.00 5.0 84.83
U/S Water Surface Elev 1 208.00 5.0 85.25
U/S OHW elevation 1 208.00 5.0 85.33
U/S Thalweg 1 215.00 12.0 84.90
U/S Water Surface Elev 253.00 50.0 85.50
U/S Headwater 253.00 50.0 85.92
U/S Thalweg 253.00 50.0 84.90
U/S Thalweg 303.00 100.0 84.90
U/S Headwater 303.00 100.0 86.29
U/S Water Surface Elev 303.00 100.0 85.71

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): 2.4
 
Gear Type: Minnow Trap (B) Trap Duration(h): 2.3

Fish Observations

Species: juvenile Dolly Varden Life History: Resident
Total Fish Observed: 27 Fish Measured: 13 Fork Lengths (mm) Min: 91 Max: 121 Mean: 108
Collected/Observed by Gear Type: Downstream Minnow Trap (12)  Upstream Minnow Trap (15)  
 
Species: adult stickleback-unspecified Life History: Resident
Total Fish Observed: 8 Fish Measured: Fork Lengths (mm) Min: Max: Mean:
Collected/Observed by Gear Type: Downstream Minnow Trap (7)  Upstream Minnow Trap (1)  

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