Fish Passage Site 20300993

Coordinates (dec. deg.): 60.48776°, -151.04684°
Legal Description: S005N010W33
Region: South Central
Road Name: East Redoubt Street

Datum: NAD83
Quad Name / ITM: Kenai B-3
AWC Stream #: 244-30-10010-2039
Stream Name: Soldotna Creek

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-NK037

Observers: Cecil Rich, Michael Lund

Overall Fish Passage Rating: Gray

Tidal: No
Backwatered: No

Step Pools:
Construction Year:


Comments: Inlet control on both culverts. Headwall at outlet is eroded between culverts. Left culvert outlet perched slightly, very high velocity at outlet. Boulders placed in outlet pool to reduce outlet perch but was not effective. Had broad tailcrest < 5% of f

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated Metal) Fish Passage Rating:
 
Length(ft): 48.5
Inlet Type: Projecting
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):4.4 4.1
Height(ft):3.58 3.9
Apron Length(ft):
Water Depth(ft):0.81 0.57
Rustline Height(ft):
Substrate Depth(ft):0.0 0.0
Backwatered?:
Baffles Present: No
Embedded?: No
Outfall Height: 0.17
Outfall Type:
Constriction Ratio: 0.39
Culvert Gradient: 2.12%
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. Cut-slope slumping or sliding into culvert (single event)
ID: 2 Structure Type: Circular pipe (Corrugated Metal) Fish Passage Rating:
 
Length(ft): 48.0
Inlet Type: Projecting
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):4.1 4.0
Height(ft):4.02 4.0
Apron Length(ft):
Water Depth(ft):0.83 0.52
Rustline Height(ft):
Substrate Depth(ft):0.0 0.0
Backwatered?:
Baffles Present: No
Embedded?: No
Outfall Height: 0.17
Outfall Type:
Constriction Ratio: 0.39
Culvert Gradient: 2.52%
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. Cut-slope slumping or sliding into culvert (single event)

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:Silt/ClaySilt/Clay
Subdominant:SandSand
Stream Slope(deg.):
Stream Flow Stage:
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Downstream ordinary high water 49.0 11.90
Downstream ordinary high water 81.0 9.20
Downstream ordinary high water 117.0 10.00
Upstream ordinary high water 5.0 36.50
Upstream ordinary high water 59.0 22.30
Upstream ordinary high water 100.0 21.20

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
D/S Thalweg 90.27
D/S Thalweg 0.00 117.0 93.17
D/S Water Surface Elev 0.00 117.0 94.04
D/S OHW Elev 0.00 117.0 94.48
D/S Thalweg 36.00 81.0 92.85
D/S Water Surface Elev 36.00 81.0 94.12
OHW Left Bank 36.00 81.0 94.73
D/S Tailcrest or 1st Thalweg 68.00 49.0 92.94
D/S Water Surface Elev 68.00 49.0 94.50
Max Pool Depth 112.00 5.0 91.48
OHW Left Bank 112.00 5.0 94.77
OHW Left Bank 112.00 5.0 94.25
Outlet Culvert Top 2 117.00 0.0 97.90
Outlet Culvert Top 1 117.00 0.0 97.94
Outlet Thalweg 1 117.00 0.0 93.13
Outlet Rustline Height 1 117.00 0.0 94.67
Outlet Rustline Height 2 117.00 0.0 94.67
Outlet Invert 1 117.00 0.0 94.04
Outlet Thalweg 2 117.00 0.0 93.42
Outlet Invert 2 117.00 0.0 93.90
Road Elev 141.00 101.46
Road Elev 141.00 101.59
Inlet Culvert Top 1 165.00 0.0 98.65
Inlet Culvert Top 2 165.00 0.0 99.13
Inlet Rustline Height 1 165.00 0.0 96.07
Inlet Rustline Height 2 165.00 0.0 96.19
Inlet Thalweg 1 165.00 0.0 94.90
Inlet Culvert Invert 1 165.00 0.0 95.07
Inlet Thalweg 2 165.00 0.0 95.07
Inlet Culvert Invert 2 165.00 0.0 95.11
U/S Thalweg 1 166.00 1.0 94.75
U/S Thalweg 2 166.00 1.0 94.79
U/S Water Surface Elev 1 170.00 5.0 95.96
U/S Water Surface Elev 2 170.00 5.0 95.96
U/S OHW elevation 1 170.00 5.0 96.32
U/S Thalweg 2 170.00 5.0 94.17
U/S Thalweg 1 170.00 5.0 94.00
U/S Thalweg 2 173.00 8.0 93.34
U/S Thalweg 1 173.80 8.8 93.34
U/S Thalweg 224.00 59.0 92.77
U/S Water Surface Elev 224.00 59.0 95.96
U/S Headwater 224.00 59.0 96.73
U/S Headwater 265.00 100.0 96.29
U/S Water Surface Elev 265.00 100.0 96.02
U/S Thalweg 265.00 100.0 93.27

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): 1.35
 
Gear Type: Minnow Trap (B) Trap Duration(h): 0.35
 
Gear Type: Visual Observation, Ground (D)

Fish Observations

Species: juvenile Dolly Varden Life History: Resident
Total Fish Observed: 4 Fish Measured: 2 Fork Lengths (mm) Min: 74 Max: 84 Mean: 79
Collected/Observed by Gear Type: Downstream Minnow Trap (2)  Upstream Minnow Trap (2)  
 
Species: adult ninespine stickleback Life History: Resident
Total Fish Observed: 80 Fish Measured: Fork Lengths (mm) Min: Max: Mean:
Collected/Observed by Gear Type: Upstream Minnow Trap (80)  
 
Species: adult stickleback-unspecified Life History: Resident
Total Fish Observed: 50 Fish Measured: Fork Lengths (mm) Min: Max: Mean:
Collected/Observed by Gear Type: Downstream Minnow Trap (50)  
 
Species: adult spawning Chinook salmon Life History: Anadromous
Total Fish Observed: Fish Measured: Fork Lengths (mm) Min: Max: Mean:
Collected/Observed by Gear Type: Downstream Visual Observation, Ground ()  
Comments: adult chinnooks observed in outlet pool
 
Species: juvenile coho salmon Life History: Anadromous
Total Fish Observed: 117 Fish Measured: 20 Fork Lengths (mm) Min: 54 Max: 98 Mean: 74
Collected/Observed by Gear Type: Downstream Minnow Trap (79)  Upstream Minnow Trap (38)  

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