Fish Passage Site 20203727

Coordinates (dec. deg.): 60.11247°, -149.44385°
Legal Description: S001S001W03
Region: South Central
Road Name: Driveway

Datum: NAD83
Quad Name / ITM: Seward A-7
AWC Stream #: 231-30-10070-2009
Stream Name: Scheffler Creek

Elevation:

Site Comments: Site is a driveway off of 2nd Avenue. Site 120_2007 is about 55 feet downstream and site 122_2007 is about 65 feet upstream.

Survey Date: Aug 08, 2017

Survey KEN17-121_2007

Observers: Jeff Sires, Louis Mitchell, Mary Richardson

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Site Observations:

  1. Culvert gradient red
  2. Mechanical damage or joints parting
  3. Damage associated with ice problems
  4. Structural Problem
  5. Constriction ratio gray

Comments: KWFRES_17_17. Culvert assessment submitted by the Kenai Watershed Forum. Stream gradient downstream below last culvert on creek is 1.97%. OHW average is 2.42'.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Red
 
Length(ft): 30.2
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 3.0
Condition Rating(1-5): 2
Approach Angle: 0.0
Sedimentation At Inlet: No
Inlet Substrate: Cobble
Outlet Substrate: Cobble
InletOutlet
Width(ft):1.75 1.91
Height(ft):2.2 2.0
Apron Length(ft):
Water Depth(ft): 0.79
Rustline Height(ft):0.75
Substrate Depth(ft):0.4 0.6
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio: 0.72
Culvert Gradient: 2.52%
Max Slope:
Max Slope Length:
 

Comments: Substrate gradient through culvert 1.95%. Inlet and outlet show damage. Upstream stream slope from this culvert to the next 2.97%.
  Culvert Observations:
  1. Mechanical damage or joints parting
  2. Culvert gradient red
  3. Damage associated with ice problems
  4. Constriction ratio red

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:CobbleCobble
Subdominant:GravelGravel
Stream Slope(deg.):1.97
Stream Flow Stage:Low
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Downstream ordinary high water 5.0 6.00
Downstream ordinary high water 30.0 4.00
Downstream ordinary high water 45.0 4.25
Upstream ordinary high water 6.0 4.50
Upstream ordinary high water 20.0 3.25
Upstream ordinary high water 35.0 3.50
Upstream ordinary high water 51.0 4.16

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Road Elev (Driveway 10) 102.40
D/S Water Surface Elev 0.00 98.09
D/S Grade Ctrl (Thalweg) (TBM 3 used Nail in telephone pole between sites) 0.00 97.27
D/S Thalweg 6.00 97.63
D/S Water Surface Elev 6.00 97.74
D/S Grade Ctrl (Thalweg) 37.00 98.17
D/S Water Surface Elev 37.00 98.39
D/S Water Surface Elev 53.00 98.99
D/S Thalweg 53.00 99.30
Outlet Culvert Top 56.00 100.73
D/S Water Surface Elev 56.00 99.49
Outlet Invert (on substrate) 56.00 98.70
Inlet Culvert Invert 86.20 99.29
U/S Water Surface Elev (?? Could this be 99.93 or 99.63?) 86.20 99.43
Inlet Culvert Top 86.20 101.49
U/S Grade Ctrl (Thalweg) 88.20 99.54
U/S Water Surface Elev 88.20 99.68
U/S Thalweg 96.20 99.76
U/S Water Surface Elev 96.20 99.98
U/S Grade Ctrl (Thalweg) 121.20 100.89
U/S Water Surface Elev 121.20 100.97
U/S Water Surface Elev 136.20 101.28
U/S Thalweg 136.20 100.86
U/S Thalweg 156.20 101.14
U/S Water Surface Elev 156.20 101.76

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): 0.5
Comments: Trap set about 70 feet upstream.

Fish Observations

No fish observations occurred during this survey.

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