Fish Passage Site 20203730

Coordinates (dec. deg.): 60.11967°, -149.44302°
Legal Description: S001S001W03
Region: South Central
Road Name: Dairy Hill Lane

Datum: NAD83
Quad Name / ITM: Seward A-7
AWC Stream #: 231-30-10070-2014
Stream Name: Unnamed

Elevation:

Site Comments: None

Survey Date: Jul 13, 2017

Survey KEN17-39_2006

Observers: Jeff Sires, Luke Violette, Louis Mitchell

Overall Fish Passage Rating: Green

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Site Observations:

  1. Culvert is poorly aligned

Comments: KWFRES_17_01 Site assessment information and photos collected and submitted by the Kenai Watershed Forum. Culverts C1 and C2 not taking flow at time of assessment, looks like they might be set as an overflow. Two streams come together upstream from inlet. C3 taking all flow at lower water levels.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Green
 
Length(ft): 60.1
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 3.0
Condition Rating(1-5): 3
Approach Angle:
Sedimentation At Inlet: No
Inlet Substrate:
Outlet Substrate:
InletOutlet
Width(ft):2.0 2.0
Height(ft):2.0 1.92
Apron Length(ft):
Water Depth(ft): 0.0
Rustline Height(ft):0.33
Substrate Depth(ft):0.0 0.1
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height:
Outfall Type: Overflow Pipe
Constriction Ratio:
Culvert Gradient: 1.83%
Max Slope:
Max Slope Length:
 

Comments: Culvert dry at time of assessment.
  Culvert Observations:
  1. Culvert gradient red
ID: 2 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Red
 
Length(ft): 59.9
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 3.0
Condition Rating(1-5): 3
Approach Angle:
Sedimentation At Inlet: No
Inlet Substrate: None
Outlet Substrate: Gravel
InletOutlet
Width(ft):2.0 1.96
Height(ft):2.0 1.88
Apron Length(ft):
Water Depth(ft): 0.0
Rustline Height(ft):0.5
Substrate Depth(ft):0.0 0.15
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height:
Outfall Type: Overflow Pipe
Constriction Ratio:
Culvert Gradient: 1.49%
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. Culvert gradient red
ID: 3 Structure Type: Open-bottom arch (Reinforced concrete) Fish Passage Rating: Green
 
Length(ft): 58.3
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.):
Corrugation Width(in.):
Condition Rating(1-5): 3
Approach Angle: 55.0
Sedimentation At Inlet: No
Inlet Substrate: Sand
Outlet Substrate: Gravel
InletOutlet
Width(ft):6.0 5.92
Height(ft):3.85 2.83
Apron Length(ft):
Water Depth(ft): 0.35
Rustline Height(ft):
Substrate Depth(ft):
Backwatered?: No
Baffles Present: No
Embedded?: Yes
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio: 0.77
Culvert Gradient: 1.78%
Max Slope:
Max Slope Length:
 

Comments: Culvert taking all flow at time of assessment. Two creeks come together just upstream of inlet. Water surface gradient through culvert at 0.41%. Substrate gradient through culvert -0.068%. Constriction calculated using only this culvert as at most flows this culvert takes majority of flow from creek.
  Culvert Observations:
  1. Culvert is poorly aligned

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:SandSand
Subdominant:GravelGravel
Stream Slope(deg.):0.42
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Downstream ordinary high water 30.0 7.00
Downstream ordinary high water 50.0 8.00
Downstream ordinary high water 70.0 9.33
Upstream ordinary high water 25.0 9.00
Upstream ordinary high water 70.0 8.00
Upstream ordinary high water 95.0 6.50

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Road Elev 101.64
D/S Thalweg 0.00 96.29
D/S Water Surface Elev 0.00 96.77
D/S Thalweg 25.00 95.85
D/S Water Surface Elev 25.00 96.76
D/S Thalweg (End of Riffle) 54.00 96.32
D/S Water Surface Elev 54.00 96.77
D/S Water Surface Elev 76.00 96.85
D/S Thalweg 76.00 96.54
Outlet Invert (On Substrate) 3 100.00 96.59
D/S Water Surface Elev 3 100.00 96.92
Outlet Invert (on substrate, dry) 1 100.00 96.99
Outlet Invert (on substrate, dry) 2 100.00 97.16
Outlet Culvert Top 1 100.00 99.00
Outlet Culvert Top 2 100.00 99.12
Outlet Culvert Top 3 100.00 100.00
U/S Water Surface Elev 3 158.27 97.16
Inlet Culvert Top 3 158.27 101.04
Inlet Culvert Invert (On substraate) 3 158.27 96.55
Inlet Culvert Invert (on pipe, dry) 2 159.90 98.05
Inlet Culvert Top 2 159.90 100.06
Inlet Culvert Top 1 160.10 100.08
Inlet Culvert Invert (on pipe, dry) 1 160.10 98.09
U/S Thalweg 173.27 96.67
U/S Water Surface Elev (Stream gradient point) 173.27 97.27
U/S Water Surface Elev 202.27 97.45
U/S Grade Ctrl (Thalweg) 202.27 96.99
U/S Water Surface Elev 214.27 97.58
U/S Grade Ctrl (Thalweg) 214.27 97.23
U/S Thalweg 250.27 97.17
U/S Water Surface Elev (Stream gradient point) 250.27 97.59

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): 1.5
Comments: No fish caught
 
Gear Type: Minnow Trap (B) Trap Duration(h): 1.5
Comments: No fish caught.

Fish Observations

No fish observations occurred during this survey.

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