Fish Passage Site 20501399

Coordinates (dec. deg.): 62.36363°, -150.70343°
Legal Description: S026N008W11
Region: South Central
Road Name: Petersville Road

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

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-MS076

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

Overall Fish Passage Rating: Green

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Site Observations:

  1. Culvert sagging in middle
  2. Culvert gradient gray

Comments: None

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Green
 
Length(ft): 59.75
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 1.0
Corrugation Width(in.): 3.0
Condition Rating(1-5): 2
Approach Angle: 22.0
Sedimentation At Inlet: No
Inlet Substrate: Cobble
Outlet Substrate: Gravel
InletOutlet
Width(ft):5.2 5.7
Height(ft):5.7 5.3
Apron Length(ft):
Water Depth(ft):0.0 1.55
Rustline Height(ft):3.9
Substrate Depth(ft):0.0 0.4
Backwatered?: No
Baffles Present: No
Embedded?: No
Embedded Depth(ft): 0.0
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio: 1.36
Culvert Gradient:
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. Culvert gradient gray
ID: 2 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Green
 
Length(ft): 60.7
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 1.0
Corrugation Width(in.): 3.0
Condition Rating(1-5): 2
Approach Angle:
Sedimentation At Inlet: No
Inlet Substrate: Cobble
Outlet Substrate: Gravel
InletOutlet
Width(ft):5.6 5.8
Height(ft):5.9 5.5
Apron Length(ft):
Water Depth(ft):0.0 1.88
Rustline Height(ft):4.7
Substrate Depth(ft):0.0 0.3
Backwatered?: No
Baffles Present: No
Embedded?: No
Embedded Depth(ft): 0.0
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio: 1.36
Culvert Gradient: 22.00%
Max Slope:
Max Slope Length:
 

Comments: Culvert #2 outlet damaged and sagging in the middle. Inlet bottom has holes and is bent (may be from ice damage). CRDG for C3 only.
ID: 3 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Gray
 
Length(ft): 60.76
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 1.0
Corrugation Width(in.): 3.0
Condition Rating(1-5): 2
Approach Angle: 22.0
Sedimentation At Inlet: No
Inlet Substrate: Cobble
Outlet Substrate: Gravel
InletOutlet
Width(ft):5.6 5.85
Height(ft):5.9 4.1
Apron Length(ft):
Water Depth(ft):0.0 1.01
Rustline Height(ft):4.8
Substrate Depth(ft):0.0 0.65
Backwatered?: No
Baffles Present: No
Embedded?: No
Embedded Depth(ft): 0.0
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio: 1.36
Culvert Gradient:
Max Slope:
Max Slope Length:
 

Comments: Culvert #3 sagging in middle and bottom of inlet is bent with holes (may be ice damage).
  Culvert Observations:
  1. Culvert sagging in middle

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:OrganicGravel
Subdominant:BoulderBoulder
Stream Slope(deg.):0.32
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Upstream bed width 36.0 22.35
Upstream bed width 64.0 22.80
Upstream bed width 90.0 17.40

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Road Elev 99.90
D/S Water Surface Elev 0.00 92.30
D/S Thalweg 0.00 91.60
D/S Water Surface Elev 67.00 92.74
D/S Thalweg 67.00 92.30
Outlet Invert 3 100.00 91.90
Outlet Invert 1 100.00 91.36
Outlet Invert 2 100.00 91.03
D/S Water Surface Elev 3 100.00 92.91
D/S Water Surface Elev 2 100.00 92.91
D/S Water Surface Elev 1 100.00 92.91
Outlet Culvert Top 3 100.00 96.36
Outlet Culvert Top 2 100.00 96.52
Outlet Culvert Top 1 100.00 96.71
Inlet Culvert Top 1 159.75 96.85
U/S Water Surface Elev 1 159.75 92.91
Inlet Culvert Invert 1 159.75 91.10
Inlet Culvert Top 2 159.90 96.86
Inlet Culvert Invert 2 160.50 90.60
U/S Water Surface Elev 2 160.50 92.90
Inlet Culvert Invert 3 160.76 90.78
Inlet Culvert Top 3 160.76 96.90
U/S Water Surface Elev 160.76 92.91
U/S Water Surface Elev 263.76 93.14
U/S Thalweg 263.76 90.34

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