Fish Passage Site 20501438

Coordinates (dec. deg.): 61.57825°, -149.75263°
Legal Description: S017N003W11
Region: South Central
Road Name: Kenlar Road

Datum: NAD83
Quad Name / ITM: Anchorage C-8
AWC Stream #:
Stream Name: Unnamed

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-MS052

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

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Site Observations:

  1. Culvert sagging in middle
  2. Culvert gradient gray
  3. Culvert gradient red

Comments: Dolly spotted

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Red
 
Length(ft): 94.0
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 2.5
Corrugation Width(in.): 0.5
Condition Rating(1-5): 2
Approach Angle: 0.0
Sedimentation At Inlet: No
Inlet Substrate: Organic
Outlet Substrate: Gravel
InletOutlet
Width(ft):2.87 3.08
Height(ft):3.04 1.9
Apron Length(ft):
Water Depth(ft):0.0 1.2
Rustline Height(ft):0.75
Substrate Depth(ft):0.0 1.2
Backwatered?: No
Baffles Present: No
Embedded?: No
Embedded Depth(ft): 0.0
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio:
Culvert Gradient: 1.83%
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. Culvert sagging in middle
  2. Culvert gradient red
  3. Culvert gradient gray
ID: 2 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Gray
 
Length(ft): 96.0
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 2.5
Corrugation Width(in.): 0.5
Condition Rating(1-5): 1
Approach Angle: 0.0
Sedimentation At Inlet: No
Inlet Substrate: Organic
Outlet Substrate: Gravel
InletOutlet
Width(ft):3.2 4.2
Height(ft):3.05 2.5
Apron Length(ft):
Water Depth(ft):0.0 1.25
Rustline Height(ft):1.5
Substrate Depth(ft):0.0 1.2
Backwatered?: No
Baffles Present: No
Embedded?: No
Embedded Depth(ft): 0.0
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio:
Culvert Gradient: 0.54%
Max Slope:
Max Slope Length:
 

Comments: Culvert #2 is severely damaged on outlet side. Cannot see through culverts for length ( lengths taken from mapper).
  Culvert Observations:
  1. Culvert sagging in middle
  2. Culvert gradient gray
  3. Culvert gradient red

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:OrganicOrganic
Subdominant:Silt/ClaySilt/Clay
Stream Slope(deg.):
Stream Flow Stage:High

No stream width data available.

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Road Elev 100.04
U/S Water Surface Elev 0.00 83.41
U/S Thalweg 0.00 81.26
U/S Thalweg 41.00 81.56
U/S Water Surface Elev 41.00 83.18
U/S Water Surface Elev 1 82.00 83.01
U/S Water Surface Elev 2 82.00 83.07
Inlet Culvert Invert 2 82.00 81.60
Inlet Culvert Invert 1 82.00 82.33
Inlet Culvert Top 2 82.00 84.69
Inlet Culvert Top 1 82.00 85.46
Outlet Culvert Top 1 176.00 83.74
Outlet Invert 1 176.00 81.76
D/S Water Surface Elev 1 176.00 83.16
D/S Water Surface Elev 2 178.00 83.12
Outlet Invert 2 178.00 81.87
Outlet Culvert Top 2 178.00 84.17
D/S Thalweg 201.00 81.57
D/S Water Surface Elev 201.00 83.09
D/S Thalweg 215.00 82.70
D/S Water Surface Elev 215.00 82.91
D/S Water Surface Elev 248.00 82.60
D/S Thalweg 248.00 80.31
D/S Thalweg 268.00 80.22
D/S Water Surface Elev 268.00 82.41

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