Fish Passage Site 20300978

Coordinates (dec. deg.): 60.56729°, -151.14675°
Legal Description: S006N011W35
Region: South Central
Road Name: Kenai Spur Highway

Datum: NAD83
Quad Name / ITM: Kenai C-4
AWC Stream #: 244-30-10010-2025-3011
Stream Name: Unnamed

Elevation:

Site Comments: Beaver ponded up/down channel. Beaver lodge just above inlet. Blownout beaver dam below outlet pool - no apparent recent activity (2001).

Survey Date: Jun 25, 2001

Survey KPCS1-NK013

Observers: Cecil Rich, Michael Lund, Tracy Smith

Overall Fish Passage Rating: Green

Tidal: No
Backwatered: No

Step Pools:
Construction Year:


Comments: Beaver ponded up/down channel. Makes 90 degree turn into inlet. Beaver lodge just above inlet. Blownout beaver dam below outlet pool - no apparent recent activity.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated Metal) Fish Passage Rating:
 
Length(ft): 97.0
Inlet Type: Flared Inlet
Outlet Type:
Corrugation Depth(in.): 1.0
Corrugation Width(in.): 3.0
Condition Rating(1-5):
Approach Angle:
Sedimentation At Inlet:
Inlet Substrate: None
Outlet Substrate: None
InletOutlet
Width(ft):4.0 4.0
Height(ft):3.53 3.63
Apron Length(ft):
Water Depth(ft):0.58 1.42
Rustline Height(ft):
Substrate Depth(ft):0.0 0.0
Backwatered?:
Baffles Present: No
Embedded?: No
Outfall Height: -0.98
Outfall Type:
Constriction Ratio: 0.32
Culvert Gradient: 0.77%
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. None of this type
ID: 2 Structure Type: Circular pipe (Corrugated Metal) Fish Passage Rating:
 
Length(ft): 97.0
Inlet Type: Flared Inlet
Outlet Type:
Corrugation Depth(in.): 1.0
Corrugation Width(in.): 3.0
Condition Rating(1-5):
Approach Angle:
Sedimentation At Inlet:
Inlet Substrate: None
Outlet Substrate: None
InletOutlet
Width(ft):4.0 4.1
Height(ft):3.44 4.02
Apron Length(ft):
Water Depth(ft):0.67 0.5
Rustline Height(ft):
Substrate Depth(ft):0.0 0.0
Backwatered?:
Baffles Present: No
Embedded?: No
Outfall Height: -0.98
Outfall Type:
Constriction Ratio: 0.32
Culvert Gradient: 0.81%
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. None of this type

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:Silt/ClayGravel
Subdominant:NoneSand
Stream Slope(deg.):
Stream Flow Stage:
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Downstream ordinary high water 39.0 8.20
Downstream ordinary high water 53.0 5.90
Downstream ordinary high water 100.0 8.00
Upstream ordinary high water 5.0 15.90
Upstream ordinary high water 50.0 35.20
Upstream ordinary high water 100.0 14.50

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
D/S Thalweg 0.00 100.0 83.35
D/S Water Surface Elev 0.00 100.0 84.42
D/S OHW Elev 0.00 100.0 84.62
D/S Water Surface Elev 47.00 53.0 84.42
D/S Thalweg 47.00 53.0 83.92
D/S OHW Elev 47.00 53.0 84.77
OHW Left Bank 61.00 39.0 88.84
D/S Tailcrest or 1st Thalweg 61.00 39.0 84.02
D/S Water Surface Elev 61.00 39.0 84.69
OHW Left Bank 95.00 5.0 84.44
OHW Left Bank 95.00 5.0 84.60
Max Pool Depth 95.00 5.0 82.40
D/S Thalweg 95.00 5.0 82.40
Outlet Invert 2 100.00 0.0 82.96
Outlet Thalweg 2 100.00 0.0 82.96
Outlet Invert 1 100.00 0.0 83.04
Outlet Thalweg 1 100.00 0.0 83.04
Outlet Rustline Height 1 100.00 0.0 84.79
Outlet Rustline Height 2 100.00 0.0 84.85
Outlet Culvert Top 1 100.00 0.0 86.67
Outlet Culvert Top 2 100.00 0.0 86.98
Road Elev 148.50 97.08
Road Elev 148.50 97.15
Inlet Rustline Height 1 197.00 0.0 84.79
Inlet Culvert Top 2 197.00 0.0 87.19
Inlet Culvert Top 1 197.00 0.0 87.33
Inlet Culvert Invert 2 197.00 0.0 83.75
Inlet Thalweg 2 197.00 0.0 83.75
Inlet Culvert Invert 1 197.00 0.0 83.79
Inlet Thalweg 1 197.00 0.0 83.79
Inlet Rustline Height 2 197.00 0.0 84.71
U/S Thalweg 2 198.00 1.0 82.71
U/S Thalweg 1 198.00 1.0 83.40
U/S Water Surface Elev 1 202.00 5.0 83.40
U/S Water Surface Elev 2 202.00 5.0 83.40
U/S Thalweg 1 202.00 5.0 81.75
U/S Thalweg 2 202.00 5.0 81.75
U/S OHW elevation 1 202.00 5.0 84.73
U/S OHW elevation 2 202.00 5.0 84.73
U/S Thalweg 1 205.00 8.0 82.08
U/S Thalweg 2 205.00 8.0 82.08
U/S Thalweg 247.00 50.0 82.17
U/S Headwater 247.00 50.0 84.60
U/S Water Surface Elev 247.00 50.0 84.42
U/S Thalweg 297.00 100.0 81.40
U/S Water Surface Elev 297.00 100.0 84.40
U/S Headwater 297.00 100.0 84.52

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): 2.2
 
Gear Type: Minnow Trap (B) Trap Duration(h): 2.25

Fish Observations

Species: adult stickleback-unspecified Life History: Resident
Total Fish Observed: 90 Fish Measured: Fork Lengths (mm) Min: Max: Mean:
Collected/Observed by Gear Type: Downstream Minnow Trap (60)  Upstream Minnow Trap (30)  
 
Species: juvenile Chinook salmon Life History: Anadromous
Total Fish Observed: 4 Fish Measured: 2 Fork Lengths (mm) Min: 83 Max: 105 Mean: 94
Collected/Observed by Gear Type: Upstream Minnow Trap (4)  
 
Species: juvenile coho salmon Life History: Anadromous
Total Fish Observed: 2 Fish Measured: 1 Fork Lengths (mm) Min: 90 Max: 90 Mean: 90
Collected/Observed by Gear Type: Downstream Minnow Trap (2)  

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