Fish Passage Site 30103695

Coordinates (dec. deg.): 52.23817°, -174.21624°
Legal Description: S092S176W04
Region: Southwest
Road Name: Korovin Bay Road

Datum: NAD83
Quad Name / ITM: Atka C-1
AWC Stream #:
Stream Name: Unnamed Tributary to Korovin Lake


Site Comments: None

Survey Date: May 03, 2016


Project Supervisor: Gillian O'Doherty, ADFG
Observers: Jeanette Alas

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:

Site Observations:

  1. Outfall height gray

Comments: Site submitted by HB Jeanette Alas from her May trip to Atka. Coho captured upstream over 800 feet from culvert inlet. This stream has been nominated to the AWC (2016).

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Black
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.):
Corrugation Width(in.):
Condition Rating(1-5):
Approach Angle:
Sedimentation At Inlet: No
Inlet Substrate: None
Outlet Substrate: None
Apron Length(ft):
Water Depth(ft):
Rustline Height(ft):
Substrate Depth(ft):0.0 0.0
Backwatered?: No
Baffles Present: No
Outfall Height: 0.16
Outfall Type: Free Fall In To Pool
Constriction Ratio:
Culvert Gradient:
Max Slope:
Max Slope Length:

Comments: Culvert perched about 2 inches. Water looks to be relatively flat through barrel. Culvert flows directly inot Korovin Lake downstream. Culvert outlet damaged.

  Culvert Observations:
  1. Outfall height gray

Stream Measurements

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

No stream width data available.


No elevation data available.

Fish Sampling Efforts

Gear Type: Minnow Trap (A)
Comments: Trap set about 50 feet upstream from culvert inlet
Gear Type: Minnow Trap (B)
Comments: Trap set about 500 feet upstream of culvert inlet.
Gear Type: Minnow Trap (C)
Comments: Trap set about 800 feet upstream from culvert inlet.

Fish Observations

Species: juvenile coho salmon Life History: Anadromous
Total Fish Observed: 13 Fish Measured: 13 Fork Lengths (mm) Min: 58 Max: 110 Mean: 81
Collected/Observed by Gear Type: Upstream Minnow Trap (1)  Upstream Minnow Trap (10)  Upstream Minnow Trap (2)  

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