Fish Passage Site 20501400

Coordinates (dec. deg.): 62.36770°, -150.71443°
Legal Description: S026N008W02
Region: South Central
Road Name: Petersville Road

Datum: NAD83
Quad Name / ITM: Talkeetna B-2
AWC Stream #: 247-41-10200-2053-3150-4060-5026-6011
Stream Name: Kenny Creek tributary

Elevation:

Site Comments: SUSITNA RIVER WATERSHED

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 MSB23-MS075

Project Supervisor: Michael Mazzacavallo, Alaska Department of Fish and Game — Anchorage, AK
Observers: Michael Mazzacavallo, Kat Leavitt, Beth Evers

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Site Observations:

  1. Culvert sagging in middle
  2. Culvert gradient red

Comments: Juvinele fish sighted down stream at outlet. Side road ditch stream runs over outlet and into stream. Culvert is slightly sagging in middle.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Red
 
Length(ft): 60.21
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 2.5
Condition Rating(1-5): 3
Approach Angle: 15.0
Sedimentation At Inlet: No
Inlet Substrate: Cobble
Outlet Substrate: Cobble
InletOutlet
Width(ft):4.0 4.12
Height(ft):3.71 3.35
Apron Length(ft):
Water Depth(ft):0.0 0.62
Rustline Height(ft):3.6
Substrate Depth(ft):0.3 0.4
Backwatered?: No
Baffles Present: No
Embedded?: No
Embedded Depth(ft): 0.4
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio: 0.88
Culvert Gradient:
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. Culvert sagging in middle
  2. Culvert gradient red

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:OrganicOrganic
Subdominant:Silt/ClaySilt/Clay
Stream Slope(deg.):0.13
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Upstream bed width 13.0 5.10
Upstream bed width 35.0 5.30
Upstream bed width 78.0 4.40
Upstream bed width 98.0 3.30

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Road Elev 100.41
D/S Thalweg 0.00 91.39
D/S Water Surface Elev 0.00 92.63
D/S Water Surface Elev 18.00 92.73
D/S Thalweg 18.00 92.41
D/S Thalweg 56.00 92.57
D/S Water Surface Elev 56.00 92.84
D/S Water Surface Elev 89.00 93.25
D/S Thalweg 89.00 92.95
Outlet Culvert Top 100.00 96.16
D/S Water Surface Elev 100.00 93.37
Outlet Invert 100.00 92.75
Inlet Culvert Invert 160.21 93.56
Inlet Culvert Top 160.21 97.07
U/S Water Surface Elev 160.21 93.97
U/S Water Surface Elev 200.21 93.90
U/S Thalweg 200.21 92.06
U/S Thalweg 260.21 92.88
U/S Water Surface Elev 260.21 92.97

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