Fish Passage Site 30103634

Coordinates (dec. deg.): 51.84644°, -176.64264°
Legal Description: S096S195W23
Region: Southwest
Road Name: Finger Bay Road

Datum: NAD83
Quad Name / ITM: Adak C-2
AWC Stream #: 306-70-10250
Stream Name: Leone Creek

Elevation:

Site Comments: Site is above documented anadromy.

Survey Date: Sep 15, 2017

Survey ADAK17-C153

Observers: Mark Eisenman, Jeanette Alas

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Site Observations:

  1. Outfall height red
  2. Structural Problem
  3. Mechanical damage or joints parting
  4. Inlet perch

Comments: This information was gathered as part of the joint reconnaissance level project between the ADF&G Habitat Division and the Fish Passage Assessment Project on Adak Island. Due to time constraints full site assessments were not conducted, but base line information was collected. Bedrock falls directly below outlet. Downstream trap was placed below suspected barrier falls and upper end of anadromy on a small tributary that enters Leone Creek. One coho captured downstream.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Red
 
Length(ft): 55.0
Inlet Type: Mitered
Outlet Type: Mitered
Corrugation Depth(in.):
Corrugation Width(in.):
Condition Rating(1-5): 1
Approach Angle:
Sedimentation At Inlet: Yes
Inlet Substrate:
Outlet Substrate:
InletOutlet
Width(ft):4.0 4.0
Height(ft):4.0 4.0
Apron Length(ft):
Water Depth(ft):
Rustline Height(ft):
Substrate Depth(ft):
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height:
Outfall Type: Free Fall on To Rip Rap
Constriction Ratio:
Culvert Gradient:
Max Slope:
Max Slope Length:
 

Comments: Outlet falls right below outlet. Outfall over 1 foot. Culvert length estimated using aerial imagery.
  Culvert Observations:
  1. Outfall height red
  2. Structural Problem
  3. Mechanical damage or joints parting
  4. Inlet perch

Stream Measurements

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

No stream width data available.

Elevations

No elevation data available.

Fish Sampling Efforts

Gear Type: Minnow Trap (A) Trap Duration(h): 17.0
 
Gear Type: Minnow Trap (B) Trap Duration(h): 17.0
Comments: Trap set down below barrier falls on small site tributary.

Fish Observations

Species: juvenile/adult Dolly Varden Life History: Unknown
Total Fish Observed: 2 Fish Measured: 2 Fork Lengths (mm) Min: 64 Max: 134 Mean: 99
Collected/Observed by Gear Type: Upstream Minnow Trap (2)  
 
Species: juvenile coho salmon Life History: Anadromous
Total Fish Observed: 1 Fish Measured: 1 Fork Lengths (mm) Min: 82 Max: 82 Mean: 82
Collected/Observed by Gear Type: Downstream Minnow Trap (1)  

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