Fish Passage Site 30103639

Coordinates (dec. deg.): 51.83392°, -176.62665°
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-C158

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. Likely barrier about 115 feet upstream from crossing. Upstream was dammed and ponded for water supply, pipeline still visible and there is a geyser of water coming out of one of the old pipes upstream. Adult pink salmon observed upstream to potential barrier and downstream of crossing. Inlets at almost buried with sediment and debris. Cannot see through either culvert. Site has been nominated to the AWC for pink salmon spawning. Site might be inundated at very high tides.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Non-corrugated metal) Fish Passage Rating: Black
 
Length(ft): 140.0
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):2.0 2.0
Height(ft):2.0 2.0
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: Cannot see through culvert. Culvert is made from old 55 gallon drums. Adult pink salmon observed above and below. Inlet almost buried from sediment and debris.
ID: 2 Structure Type: Circular pipe (Non-corrugated metal) Fish Passage Rating: Black
 
Length(ft): 140.0
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):2.0 2.0
Height(ft):2.0 2.0
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: Cannot see through culvert. Culvert is made from old 55 gallon drums. Adult pink salmon observed above and below. Inlet almost buried from sediment and debris.

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: 18 Fish Measured: Fork Lengths (mm) Min: Max: Mean:
Collected/Observed by Gear Type: At Site Visual Observation, Ground (18)  
Comments: 3 adult pink salmon observed upstream at potential barrier and 15 observed below crossing.

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