Fish Passage Site 20301014

Coordinates (dec. deg.): 60.51310°, -150.85960°
Legal Description: S005N009W21
Region: South Central
Road Name: Lou Morgan Road

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

Elevation:

Site Comments: Changed road name for this site from Scout Lake Road to Lou Morgan Road in 2019 to be consistent with borough name.

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-NK086

Observers: Cecil Rich, James Maple, Tom Sigurdsson

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools:
Construction Year:


Comments: Culvert is bowed and has large grassy build up on upstream side.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated Metal) Fish Passage Rating:
 
Length(ft): 130.0
Inlet Type: Flared Inlet
Outlet Type:
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 3.0
Condition Rating(1-5):
Approach Angle:
Sedimentation At Inlet:
Inlet Substrate: Silt/Clay
Outlet Substrate: Silt/Clay
InletOutlet
Width(ft):5.8 5.6
Height(ft):2.14 3.13
Apron Length(ft):
Water Depth(ft):0.4 1.46
Rustline Height(ft):
Substrate Depth(ft):0.0 0.48
Backwatered?:
Baffles Present: No
Embedded?: No
Outfall Height:
Outfall Type:
Constriction Ratio: 0.21
Culvert Gradient: 1.16%
Max Slope:
Max Slope Length:
ID: 2 Structure Type: Circular pipe (Corrugated Metal) Fish Passage Rating:
 
Length(ft):
Inlet Type:
Outlet Type:
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 3.0
Condition Rating(1-5):
Approach Angle:
Sedimentation At Inlet:
Inlet Substrate:
Outlet Substrate:
InletOutlet
Width(ft):3.5 3.6
Height(ft):1.89 1.65
Apron Length(ft):
Water Depth(ft):
Rustline Height(ft):
Substrate Depth(ft):
Backwatered?:
Baffles Present: No
Embedded?: No
Outfall Height:
Outfall Type:
Constriction Ratio: 0.21
Culvert Gradient:
Max Slope:
Max Slope Length:

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:Silt/ClaySilt/Clay
Subdominant:NoneNone
Stream Slope(deg.):
Stream Flow Stage:
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Downstream ordinary high water 17.0 17.00
Downstream ordinary high water 70.0 9.60
Downstream ordinary high water 100.0 10.00
Upstream ordinary high water 5.0 13.00
Upstream ordinary high water 50.0 33.00
Upstream ordinary high water 100.0 56.00

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
D/S Thalweg 0.00 100.0 87.50
D/S Water Surface Elev 0.00 100.0 88.10
D/S OHW Elev 0.00 100.0 88.23
D/S OHW Elev 30.00 70.0 88.37
D/S Water Surface Elev 30.00 70.0 88.21
D/S Thalweg 30.00 70.0 87.54
D/S Tailcrest or 1st Thalweg 83.00 17.0 89.67
D/S Water Surface Elev 83.00 17.0 89.94
OHW Left Bank 83.00 17.0 90.23
OHW Left Bank 95.00 5.0 90.23
OHW Left Bank 95.00 5.0 90.33
Max Pool Depth 95.00 5.0 88.92
D/S Thalweg 95.00 5.0 88.92
Outlet Thalweg 1 100.00 0.0 89.00
Outlet Invert 1 100.00 0.0 88.52
Outlet Rustline Height 1 100.00 0.0 90.27
Outlet Invert 2 100.00 0.0 91.29
Outlet Culvert Top 1 100.00 0.0 91.65
Outlet Culvert Top 2 100.00 0.0 92.94
Road Elev 165.00 110.00
Road Elev 165.00 110.40
Inlet Culvert Top 1 230.00 0.0 92.17
Inlet Culvert Top 2 230.00 0.0 92.17
Inlet Rustline Height 1 230.00 0.0 90.38
Inlet Culvert Invert 2 230.00 0.0 90.28
Inlet Culvert Invert 1 230.00 0.0 90.03
Inlet Thalweg 1 230.00 0.0 90.03
U/S Thalweg 1 231.00 1.0 89.19
U/S Water Surface Elev 1 235.00 5.0 90.38
U/S OHW elevation 1 235.00 5.0 90.40
U/S Thalweg 1 235.00 5.0 88.65
U/S Thalweg 1 241.40 11.4 87.71
U/S Headwater 280.00 50.0 90.48
U/S Thalweg 280.00 50.0 89.53
U/S Water Surface Elev 280.00 50.0 90.34
U/S Headwater 330.00 100.0 90.65
U/S Water Surface Elev 330.00 100.0 90.69
U/S Thalweg 330.00 100.0 89.03

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): 1.15
 
Gear Type: Minnow Trap (B)

Fish Observations

Species: juvenile Dolly Varden Life History: Resident
Total Fish Observed: 26 Fish Measured: 12 Fork Lengths (mm) Min: 86 Max: 122 Mean: 98
Collected/Observed by Gear Type: Downstream Minnow Trap (13)  Upstream Minnow Trap (13)  
 
Species: juvenile coho salmon Life History: Anadromous
Total Fish Observed: 2 Fish Measured: 1 Fork Lengths (mm) Min: 92 Max: 92 Mean: 92
Collected/Observed by Gear Type: Upstream Minnow Trap (2)  

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