Fish Passage Site 30103683

Coordinates (dec. deg.): 51.87629°, -176.66237°
Legal Description: S096S195W10
Region: Southwest
Road Name: Hillside Boulevard

Datum: NAD83
Quad Name / ITM: Adak C-2
AWC Stream #: 306-70-10200-2015
Stream Name: West Sweeper Creek

Elevation:

Site Comments: None

Survey Date: Sep 17, 2017

Survey ADAK17-C96

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

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. Culvert site is currently the end of documented anadaromy. Adult pinks observered directly below perched outlet, no adults observed alive or dead above culvert. Culvert appears to be adult barrier.

Culvert Measurements

ID: 1 Structure Type: Box culvert (Reinforced concrete) Fish Passage Rating: Red
 
Length(ft): 145.0
Inlet Type: Headwall
Outlet Type: Headwall
Corrugation Depth(in.):
Corrugation Width(in.):
Condition Rating(1-5): 3
Approach Angle:
Sedimentation At Inlet: Maybe
Inlet Substrate: None
Outlet Substrate: None
InletOutlet
Width(ft):6.0 6.0
Height(ft):6.0 6.0
Apron Length(ft):
Water Depth(ft):
Rustline Height(ft):
Substrate Depth(ft):
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height: 1.5
Outfall Type: Free Fall In To Pool
Constriction Ratio:
Culvert Gradient:
Max Slope:
Max Slope Length:
 

Comments: Culvert length estimated using aerial imagery. Concrete outlet apron 3-4'. Outfall measured with hand tape at around 1.5'.
  Culvert Observations:
  1. Outfall height red

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): 16
 
Gear Type: Visual Observation, Ground (B)
Comments: About 20 adult pinks observed directly below culvert

Fish Observations

Species: juvenile/adult Dolly Varden Life History: Unknown
Total Fish Observed: 3 Fish Measured: 3 Fork Lengths (mm) Min: 85 Max: 103 Mean: 94
Collected/Observed by Gear Type: Upstream Minnow Trap (3)  
 
Species: adult spawning pink salmon Life History: Anadromous
Total Fish Observed: 20 Fish Measured: Fork Lengths (mm) Min: Max: Mean:
Collected/Observed by Gear Type: Downstream Visual Observation, Ground (20)  
Comments: Pinks observed directly below culvert in outlet pool, no adults seen above culvert.

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