Fish Passage Site 30103686

Coordinates (dec. deg.): 51.87490°, -176.65303°
Legal Description: S096S195W10
Region: Southwest
Road Name: Airport Access Road

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

Elevation:

Site Comments: None

Survey Date: Sep 15, 2017

Survey ADAK17-C99

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. South Sweeper Creek (AWC #306-70-10200-2015) enters Sweeper Creek from the west at inlet. Site C100 east along this access road about 100 feet to the east and the airport drainage system is separted from Sweeper creek by a large earthen dike

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Black
 
Length(ft): 130.0
Inlet Type: Mitered
Outlet Type: Mitered
Corrugation Depth(in.):
Corrugation Width(in.):
Condition Rating(1-5): 3
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): 0.0
Rustline Height(ft):
Substrate Depth(ft):
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height:
Outfall Type: At Stream Grade
Constriction Ratio:
Culvert Gradient:
Max Slope:
Max Slope Length:
 

Comments: This culvert was not taking any flows at the water level during time of visit.

ID: 2 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Gray
 
Length(ft): 130.0
Inlet Type: Mitered
Outlet Type: Mitered
Corrugation Depth(in.):
Corrugation Width(in.):
Condition Rating(1-5): 3
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 In To Pool
Constriction Ratio:
Culvert Gradient:
Max Slope:
Max Slope Length:
 

Comments: Culvert has a perch, maybe over 0.40 inches, but not measured at time of visit.

  Culvert Observations:
  1. Outfall height gray
ID: 3 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Gray
 
Length(ft): 130.0
Inlet Type: Mitered
Outlet Type: Mitered
Corrugation Depth(in.):
Corrugation Width(in.):
Condition Rating(1-5): 3
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 In To Pool
Constriction Ratio:
Culvert Gradient:
Max Slope:
Max Slope Length:
 

Comments: Culvert is perched, maybe over 0.40 feet, but not measured at time of visit.

  Culvert Observations:
  1. Outfall height gray
ID: 4 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Gray
 
Length(ft): 130.0
Inlet Type: Mitered
Outlet Type: Mitered
Corrugation Depth(in.):
Corrugation Width(in.):
Condition Rating(1-5): 3
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 In To Pool
Constriction Ratio:
Culvert Gradient:
Max Slope:
Max Slope Length:
 

Comments: Culvert is perched, outfall maybe over 0.40', but was not measured at time of survey.

ID: 5 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Black
 
Length(ft): 130.0
Inlet Type: Mitered
Outlet Type: Mitered
Corrugation Depth(in.):
Corrugation Width(in.):
Condition Rating(1-5): 3
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: 0.0
Outfall Type: At Stream Grade
Constriction Ratio:
Culvert Gradient:
Max Slope:
Max Slope Length:
 

Comments: Culvert taken majority of flow from bank of culverts, also the only one with water that has an outlet at grade.

  Culvert Observations:
  1. 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: Visual Observation, Ground (A)
 
Gear Type: Visual Observation, Ground (B)

Fish Observations

Species: adult spawning pink salmon Life History: Anadromous
Total Fish Observed: 5 Fish Measured: Fork Lengths (mm) Min: Max: Mean:
Collected/Observed by Gear Type: Downstream Visual Observation, Ground (2)  Upstream Visual Observation, Ground (3)  

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