Fish Passage Site 30103622

Coordinates (dec. deg.): 51.85453°, -176.66101°
Legal Description: S096S195W15
Region: Southwest
Road Name: Administration Road

Datum: NAD83
Quad Name / ITM: Adak C-2
AWC Stream #: 306-70-10223
Stream Name: Helmet Creek

Elevation:

Site Comments: None

Survey Date: Sep 16, 2017

Survey ADAK17-C107

Observers: Mark Eisenman, Jeanette Alas

Overall Fish Passage Rating: Black

Tidal: No
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. Flood control gate at outlet. Adult pinks observed upstream and downstream of culvert. Ditch with red stained water entering creek at inlet.

Culvert Measurements

ID: 1 Structure Type: Box culvert (Reinforced concrete) Fish Passage Rating: Black
 
Length(ft): 72.0
Inlet Type: Headwall
Outlet Type: Headwall
Corrugation Depth(in.):
Corrugation Width(in.):
Condition Rating(1-5): 3
Approach Angle:
Sedimentation At Inlet: Yes
Inlet Substrate:
Outlet Substrate:
InletOutlet
Width(ft):3.5 3.5
Height(ft):4.5 4.5
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: Fllood gate at outlet. Culvert length estimated using aerial imagery. Deep outlet pool.

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)
 
Gear Type: Minnow Trap (B) Trap Duration(h): 14.5

Fish Observations

Species: adult spawning pink salmon Life History: Anadromous
Total Fish Observed: 10 Fish Measured: Fork Lengths (mm) Min: Max: Mean:
Collected/Observed by Gear Type: At Site Visual Observation, Ground (10)  
Comments: Adult pinks observed upstream and downstream of culvert.
 
Species: juvenile coho salmon Life History: Anadromous
Total Fish Observed: 6 Fish Measured: 6 Fork Lengths (mm) Min: 51 Max: 103 Mean: 77
Collected/Observed by Gear Type: Upstream Minnow Trap (6)  
 
Species: juvenile/adult Dolly Varden Life History: Unknown
Total Fish Observed: 6 Fish Measured: 6 Fork Lengths (mm) Min: 69 Max: 132 Mean: 105
Collected/Observed by Gear Type: Upstream Minnow Trap (6)  
 
Species: adult threespine stickleback Life History: Unknown
Total Fish Observed: 1 Fish Measured: 1 Fork Lengths (mm) Min: 52 Max: 52 Mean: 52
Collected/Observed by Gear Type: Upstream Minnow Trap (1)  

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