Fish Passage Site 30103638

Coordinates (dec. deg.): 51.83482°, -176.62523°
Legal Description: S096S195W25
Region: Southwest
Road Name: Finger Bay Road

Datum: NAD83
Quad Name / ITM: Adak C-2
AWC Stream #:
Stream Name: Unnamed

Elevation:

Site Comments: None

Survey Date: Sep 15, 2017

Survey ADAK17-C157

Observers: Mark Eisenman, Jeanette Alas

Overall Fish Passage Rating: Black

Tidal: Maybe
Backwatered: No

Step Pools: No
Construction Year:


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. 25' waterfall barrier about 70 feet upstream from inlets. Adult pink salmon observed all the way to the base of the waterfall barrier and downstream of crossing. Upstream habitat above waterfall looks to be high quality and Dolly Varden char and Rainbow Trout were captured upstream at crossing C156.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Black
 
Length(ft): 107.0
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.):
Corrugation Width(in.):
Condition Rating(1-5): 1
Approach Angle:
Sedimentation At Inlet: Yes
Inlet Substrate:
Outlet Substrate:
InletOutlet
Width(ft):3.0 3.0
Height(ft):3.0 3.0
Apron Length(ft):
Water Depth(ft):
Rustline Height(ft):
Substrate Depth(ft):
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio:
Culvert Gradient:
Max Slope:
Max Slope Length:
 

Comments: Culverts show significant signs of deterioration with most of the barrier rusted and rusted out section noticeable. May be inundated at some high tides.
ID: 2 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Black
 
Length(ft): 107.0
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.):
Corrugation Width(in.):
Condition Rating(1-5): 1
Approach Angle:
Sedimentation At Inlet: Yes
Inlet Substrate:
Outlet Substrate:
InletOutlet
Width(ft):3.0 3.0
Height(ft):3.0 3.0
Apron Length(ft):
Water Depth(ft):
Rustline Height(ft):
Substrate Depth(ft):
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio:
Culvert Gradient:
Max Slope:
Max Slope Length:
 

Comments: Culverts show significant signs of deterioration with most of the barrier rusted and rusted out section noticeable. May be inundated at some high tides.
ID: 3 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Black
 
Length(ft): 107.0
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.):
Corrugation Width(in.):
Condition Rating(1-5): 1
Approach Angle:
Sedimentation At Inlet: Yes
Inlet Substrate:
Outlet Substrate:
InletOutlet
Width(ft):3.0 3.0
Height(ft):3.0 3.0
Apron Length(ft):
Water Depth(ft):
Rustline Height(ft):
Substrate Depth(ft):
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio:
Culvert Gradient:
Max Slope:
Max Slope Length:
 

Comments: Culverts show significant signs of deterioration with most of the barrier rusted and rusted out section noticeable. May be inundated at some high tides.

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: Visual Observation, Ground (A)

Fish Observations

Species: adult spawning pink salmon Life History: Anadromous
Total Fish Observed: 30 Fish Measured: Fork Lengths (mm) Min: Max: Mean:
Collected/Observed by Gear Type: At Site Visual Observation, Ground (30)  
Comments: Pinks observed all the way up to the base of the waterfall barrier about 70 feet upstream from road crossing.

Questions or comments about this report can be directed to dfg.dsf.webmaster@alaska.gov