Fish Passage Site 20503425

Coordinates (dec. deg.): 61.71418°, -150.00964°
Legal Description: S019N004W28
Region: South Central
Road Name: Alaska Railroad

Datum: NAD83
Quad Name / ITM: Tyonek C-1
AWC Stream #:
Stream Name: Kelly Lake


Site Comments: TMP 183.26

Survey Date: May 11, 2015


Project Supervisor: Gillian O'Doherty, ADFG
Observers: Mark Eisenman, Gillian O'Doherty

Overall Fish Passage Rating: Gray


Step Pools:
Construction Year:

Comments: Concrete culvert connects two sections of Kelly Lake. There is flow through the culvert, but does not appear to be a barrier at current water levels.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Reinforced concrete) Fish Passage Rating: Gray
Length(ft): 55.1
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.):
Corrugation Width(in.):
Condition Rating(1-5): 2
Approach Angle: 0.0
Sedimentation At Inlet: No
Inlet Substrate: Gravel
Outlet Substrate: Sand
Width(ft):4.1 4.0
Height(ft):3.7 3.9
Apron Length(ft):
Water Depth(ft): 0.75
Rustline Height(ft):
Substrate Depth(ft):0.3 0.1
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height:
Outfall Type: At Stream Grade
Constriction Ratio:
Culvert Gradient: 0.91%
Max Slope:
Max Slope Length:

Comments: The last section of concrete is starting to separate and has about a 5 inch gap and other sections are also starting to separate.

Stream Measurements

Stream SubstratesUpstreamDownstream
Stream Slope(deg.):
Stream Flow Stage:

No stream width data available.


Locator ID Culvert
Distance (ft)1
Distance From
Crossing (ft)2
Elevation (ft)
Outlet Culvert Top 0.00 90.81
Inlet Culvert Top 55.10 91.31


  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.

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