Fish Passage Site 20203721

Coordinates (dec. deg.): 60.11375°, -149.44392°
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: Culvert runs under driveway next to Second Avenue. Site 112_2007 is about 15 feet downstream and site 116_2007 is about 50 feet upstream.

Survey Date: Jul 20, 2017

Survey KEN17-115_2007

Observers: Jeff Sires, Louis Mitchell, Luke Violette

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Site Observations:

  1. Culvert gradient red
  2. Damage associated with ice problems
  3. Mechanical damage or joints parting

Comments: KWFRES_17_11. Culvert assessment and photographs submitted by Kenai Watershed Forum. This culvert is the second to last driveway culvert on a battery of 8 that runs along 2nd Avenue. Constriction ratio calculated using stream widths below farthest downstream culvert. This site used the same TBM as 112_2007 and has been linked with all other culvert assessment elevations along this creek. Creek has been ditched upstream and downstream.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Red
 
Length(ft): 31.035
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 3.0
Condition Rating(1-5): 3
Approach Angle: 0.0
Sedimentation At Inlet: No
Inlet Substrate: None
Outlet Substrate: None
InletOutlet
Width(ft):2.33 2.5
Height(ft):2.0 2.5
Apron Length(ft):
Water Depth(ft): 0.68
Rustline Height(ft):0.66
Substrate Depth(ft):0.0 0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio: 0.96
Culvert Gradient: 1.90%
Max Slope:
Max Slope Length:
 

Comments: For constriction ration stream measurement taken below downstream culvert were used. DS OHW used 2.42'. Water surface gradient through culvert 1.29%.
  Culvert Observations:
  1. Culvert gradient red
  2. Damage associated with ice problems
  3. Mechanical damage or joints parting

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:SandSand
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 4.50
Downstream ordinary high water 10.0 5.00
Downstream ordinary high water 15.0 7.00
Upstream ordinary high water 25.0 3.50
Upstream ordinary high water 45.0 2.75
Upstream ordinary high water 80.0 4.00

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Road Elev (Driveway #4) 98.89
D/S Thalweg (Same TBM as 112_2007 downstream culvert survey) 0.00 95.20
D/S Water Surface Elev 0.00 95.34
D/S Water Surface Elev 12.00 95.62
D/S Thalweg 12.00 94.66
Outlet Invert (on pipe) 15.00 95.06
Outlet Culvert Top 15.00 97.90
D/S Water Surface Elev 15.00 95.74
U/S Water Surface Elev 46.00 96.14
Inlet Culvert Invert 46.00 95.65
Inlet Culvert Top 46.00 97.74
U/S Water Surface Elev 52.00 96.59
U/S Thalweg 52.00 96.28
U/S Thalweg 71.00 96.55
U/S Water Surface Elev 71.00 96.81
U/S Thalweg 96.00 97.03
U/S Water Surface Elev 96.00 97.24

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): 0.83
Comments: Trap set about 30 feet upstream
 
Gear Type: Minnow Trap (B) Trap Duration(h): 0.83
Comments: Trap set about 2 feet downstream

Fish Observations

Species: juvenile/adult Dolly Varden Life History: Unknown
Total Fish Observed: 1 Fish Measured: 1 Fork Lengths (mm) Min: 120 Max: 120 Mean: 120
Collected/Observed by Gear Type: Downstream Minnow Trap (1)  

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