Fish Passage Site 20400595

Coordinates (dec. deg.): 61.50576°, -148.96935°
Legal Description: S016N003E05
Region: South Central
Road Name: Knik River Road

Datum: NAD83
Quad Name / ITM: Anchorage C-6
AWC Stream #: 247-50-10200-2078
Stream Name: Barbell Lake Outlet

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 MSB23-MS010

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. None of this type

Comments: None

Culvert Measurements

ID: 1 Structure Type: Pipe-arch (Corrugated steel) Fish Passage Rating: Green
 
Length(ft): 70.11
Inlet Type: Mitered
Outlet Type: Mitered
Corrugation Depth(in.): 1.0
Corrugation Width(in.): 3.0
Condition Rating(1-5): 5
Approach Angle: 0.0
Sedimentation At Inlet: No
Inlet Substrate: Organic
Outlet Substrate: Organic
InletOutlet
Width(ft):8.3 9.2
Height(ft):5.58 5.6
Apron Length(ft):
Water Depth(ft):0.0 0.68
Rustline Height(ft):1.0
Substrate Depth(ft):0.0 0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Embedded Depth(ft): 0.0
Outfall Height:
Outfall Type: At Stream Grade
Constriction Ratio: 1.08
Culvert Gradient: 0.68%
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. None of this type

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:SandSand
Subdominant:GravelGravel
Stream Slope(deg.):0.28
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Downstream ordinary high water 54.0 10.40
Downstream ordinary high water 76.0 9.50
Downstream ordinary high water 135.0 6.20

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Outlet Culvert Top 96.93
Road Elev 101.25
D/S Thalweg 15.00 90.75
D/S Water Surface Elev 15.00 91.51
D/S Water Surface Elev 81.00 91.64
D/S Thalweg 81.00 91.86
D/S Water Surface Elev 113.00 91.85
D/S Thalweg 113.00 90.67
D/S Thalweg 140.00 90.85
D/S Water Surface Elev 140.00 92.00
Outlet Invert 150.00 91.31
D/S Water Surface Elev 150.00 91.99
Inlet Culvert Top 214.06 97.32
Inlet Culvert Invert 220.11 91.71
U/S Water Surface Elev 220.11 92.10
U/S Water Surface Elev 230.11 92.11
U/S Thalweg 230.11 90.44
U/S Water Surface Elev 234.11 92.15
U/S Thalweg 234.11 91.99
U/S Water Surface Elev 256.10 92.26
U/S Thalweg 256.10 91.27
U/S Thalweg 294.10 91.55
U/S Water Surface Elev 294.10 92.30
U/S Thalweg 307.10 91.00
U/S Water Surface Elev 307.10 92.37
U/S Thalweg 320.10 90.92
U/S Water Surface Elev 320.10 92.37

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