Fish Passage Site 20203722

Coordinates (dec. deg.): 60.11341°, -149.44402°
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 runs under a driveway next to 2nd Avenue. Site is about 30 feet downstream from culvert 117_2007 and 60 feet upstream from site 115_2007.

Survey Date: Jul 21, 2017

Survey KEN17-116_2007

Observers: Jeff Sires, Louis Mitchell, Luke Violette

Overall Fish Passage Rating: Gray

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Site Observations:

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

Comments: KWFRES_17_12. Culvert assessment submitted by Kenai Watershed Forum. Stream is ditched upstream and downstream from culvert. Downstream stream gradient and OHW measurements used taken from below last culvert downstream 112_2007. Culvert technically embedded most likely through natural deposition or road fill eroding into creek. Culvert not set to within 1% of culvert gradient. Creek is ditched upstream and downstream from culvert. Lots of other driveway culverts upstream and downstream on this creek. Long Profile uses same TBM as 112 and 115 and is tied to the other upstream surveys with a secondary TBM in the profile.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Gray
 
Length(ft): 26.17
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: Gravel
Outlet Substrate: Gravel
InletOutlet
Width(ft):2.33 1.75
Height(ft):1.5 1.66
Apron Length(ft):
Water Depth(ft): 0.47
Rustline Height(ft):0.5
Substrate Depth(ft):0.83 0.71
Backwatered?: No
Baffles Present: No
Embedded?: Yes
Embedded Depth(ft): 0.71
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio: 0.96
Culvert Gradient: 0.80%
Max Slope:
Max Slope Length:
 

Comments: Substrate gradient through culvert 2.71%, water surface gradient through culvert 1.68%.
  Culvert Observations:
  1. Culvert gradient gray
  2. Damage associated with ice problems
  3. Mechanical damage or joints parting

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:GravelGravel
Subdominant:CobbleCobble
Stream Slope(deg.):1.97
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Downstream ordinary high water 5.0 4.00
Downstream ordinary high water 25.0 2.75
Downstream ordinary high water 35.0 3.50
Upstream ordinary high water 10.0 2.00
Upstream ordinary high water 20.0 2.50
Upstream ordinary high water 35.0 2.50

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Road Elev 98.90
Road Elev (Driveway #5) 98.90
Misc. (TBM #2 tied to TBM#1 = 100) 101.84
D/S Water Surface Elev 0.00 96.59
D/S Water Surface Elev 0.00 96.59
D/S Thalweg 0.00 96.28
D/S Thalweg 0.00 96.28
D/S Thalweg 19.00 96.55
D/S Thalweg 19.00 96.55
D/S Water Surface Elev 19.00 96.81
D/S Water Surface Elev 19.00 96.81
D/S Thalweg 44.00 97.03
D/S Thalweg 44.00 97.03
D/S Water Surface Elev 44.00 97.24
D/S Water Surface Elev 44.00 97.24
D/S Water Surface Elev 49.00 97.57
D/S Water Surface Elev 49.00 97.57
Outlet Invert (on substrate) 49.00 97.10
Outlet Invert (on substrate) 49.00 97.10
Outlet Culvert Top 49.00 99.09
Outlet Culvert Top 49.00 99.09
Inlet Culvert Top 75.17 99.26
Inlet Culvert Top 75.17 99.26
Inlet Culvert Invert (on substrate) 75.17 97.81
Inlet Culvert Invert (on substrate) 75.17 97.81
U/S Water Surface Elev 75.17 98.01
U/S Water Surface Elev 75.17 98.01
U/S Water Surface Elev 76.67 97.99
U/S Thalweg 76.67 97.64
U/S Thalweg 76.67 97.64
U/S Thalweg 92.17 98.13
U/S Water Surface Elev 92.17 98.40
U/S Grade Ctrl (Thalweg) 107.17 98.74
U/S Water Surface Elev 107.17 98.96

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 60 feet upstream, upstream of inlet of next culvert 117_2007
 
Gear Type: Minnow Trap (B) Trap Duration(h): 0.5
Comments: Trap set about 5 feet downstream.

Fish Observations

No fish observations occurred during this survey.

Questions or comments about this report can be directed to dfg.dsf.webmaster@alaska.gov