Fish Passage Site 20303805

Coordinates (dec. deg.): 60.49538°, -151.01906°
Legal Description: S005N010W27
Region: South Central
Road Name: Forest Road

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

Elevation:

Site Comments: None

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 KEN18-FORR01

Observers: Maggie Harings, Madeleine Tucker, Rachel Smaby, Tait Stevenson

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Site Observations:

  1. Outfall height red
  2. Culvert is poorly aligned

Comments: Culvert assessment and photos submitted by Kenai Watershed Forum.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated aluminum) Fish Passage Rating: Red
 
Length(ft): 20.0
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 3.0
Condition Rating(1-5): 3
Approach Angle: 63.0
Sedimentation At Inlet: No
Inlet Substrate: None
Outlet Substrate: None
InletOutlet
Width(ft):1.4 1.4
Height(ft):1.4 1.4
Apron Length(ft):
Water Depth(ft): 0.04
Rustline Height(ft):0.45
Substrate Depth(ft):0.0 0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height: 0.86
Outfall Type: Free Fall In To Pool
Constriction Ratio: 0.7
Culvert Gradient: 0.65%
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. Outfall height red
  2. Culvert is poorly aligned

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:Silt/ClaySilt/Clay
Subdominant:OrganicOrganic
Stream Slope(deg.):0.24
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Downstream ordinary high water 17.0 2.00
Downstream ordinary high water 33.0 1.00
Downstream ordinary high water 51.0 2.20
Upstream ordinary high water 20.0 1.40
Upstream ordinary high water 40.0 1.90
Upstream ordinary high water 100.0 1.90
Upstream ordinary high water 110.0 2.00

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Road Elev 100.92
D/S Thalweg 0.00 96.03
D/S Water Surface Elev 0.00 96.98
D/S Thalweg 80.00 96.86
D/S Water Surface Elev 80.00 97.26
D/S Water Surface Elev 91.00 97.23
D/S Thalweg 91.00 96.78
D/S Tailcrest or 1st Thalweg 128.00 97.13
D/S Water Surface Elev 128.00 97.65
Outlet Pool Water Elev 131.30 97.65
Max Pool Depth 131.30 97.39
Outlet Invert (on pipe) 132.00 98.47
D/S Water Surface Elev 132.00 98.51
Outlet Culvert Top 132.00 99.72
Inlet Culvert Top 152.00 99.85
U/S Water Surface Elev 152.00 98.96
Inlet Culvert Invert (on pipe) 152.00 98.43
U/S Thalweg (1st resting) 158.00 98.40
U/S Water Surface Elev 158.00 98.94
U/S Water Surface Elev 215.00 98.95
U/S Thalweg 215.00 98.51
U/S Thalweg 233.00 98.31
U/S Water Surface Elev 233.00 99.08
U/S Water Surface Elev 302.00 99.16
U/S Thalweg 302.00 98.74

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

No fish sampling occurred during this survey.

Fish Observations

No fish observations occurred during this survey.

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