Fish Passage Site 10302210

Coordinates (dec. deg.): 58.38221°, -134.63745°
Legal Description: C040S065E23
Region: Southeast
Road Name: Glacier Highway

Datum: NAD83
Quad Name / ITM: Juneau B-2
AWC Stream #:
Stream Name: Auke Creek

Elevation:

Site Comments: None

Survey Date: Jul 12, 2011

Survey SEA11-GLH12

Project Supervisor: Gillian O'Doherty, Alaska Department of Fish and Game — Anchorage, AK
Observers: Jason Olds, Charmagne Gutierrez

Overall Fish Passage Rating: Gray

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Site Observations:

  1. None of this type

Comments: No traps were set as stream is already in the AWC. Juvenile salmonids were observed upstream and downstream of pipe. Fish passage structures, concrete weirs, sparatic and continuous downstream over 500 feet with pools too deep to survey safely. Pipe acts as tailwater control for Auke Lake, stream channel opens to lake aproximately 50 feet upstream. Upstream is lake and downstream is mechanically influenced and channelized through urban areas making for difficult measurements of a natural stream width or gradient.

Culvert Measurements

ID: 1 Structure Type: Box culvert (Reinforced concrete) Fish Passage Rating: Gray
 
Length(ft): 142.7
Inlet Type: Headwall
Outlet Type: Headwall
Corrugation Depth(in.):
Corrugation Width(in.):
Condition Rating(1-5): 3
Approach Angle: 14.0
Sedimentation At Inlet: No
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): 0.23
Rustline Height(ft):
Substrate Depth(ft):0.0 0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio:
Culvert Gradient: 0.91%
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. None of this type
ID: 2 Structure Type: Box culvert (Reinforced concrete) Fish Passage Rating: Gray
 
Length(ft): 142.9
Inlet Type: Headwall
Outlet Type: Headwall
Corrugation Depth(in.):
Corrugation Width(in.):
Condition Rating(1-5): 3
Approach Angle: 14.0
Sedimentation At Inlet: No
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): 0.41
Rustline Height(ft):
Substrate Depth(ft):0.0 0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio:
Culvert Gradient: 0.98%
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. None of this type
ID: 3 Structure Type: Box culvert (Reinforced concrete) Fish Passage Rating: Gray
 
Length(ft): 145.8
Inlet Type: Headwall
Outlet Type: Headwall
Corrugation Depth(in.):
Corrugation Width(in.):
Condition Rating(1-5): 3
Approach Angle: 14.0
Sedimentation At Inlet: No
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): 0.71
Rustline Height(ft):
Substrate Depth(ft):0.0 0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio:
Culvert Gradient: 0.95%
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. None of this type

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:CobbleCobble
Subdominant:GravelBoulder
Stream Slope(deg.):
Stream Flow Stage:Medium

No stream width data available.

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
D/S Water Surface Elev 0.00 99.26
D/S Tailcrest or 1st Thalweg (Rock Step, TWC for C1 and C2) 0.00 98.78
Max Pool Depth 10.00 98.47
Outlet Pool Water Elev (C1 and C2 only) 10.00 99.26
D/S Tailcrest or 1st Thalweg (Step pool for C3 only) 3 20.00 99.31
Outlet Pool Water Elev (C3 only) 20.00 99.74
D/S Water Surface Elev (Invert out C3) 3 30.00 99.86
Outlet Invert (Invert out C1, on concrete) 1 30.00 99.37
D/S Water Surface Elev (Invert out C1) 1 30.00 99.60
D/S Water Surface Elev (Inver out C2) 2 30.00 99.65
Outlet Invert (Invert out C3, on concrete) 3 30.00 99.15
Outlet Invert (Invert out C2, on concrete) 2 30.00 99.24
Inlet Culvert Invert (Invert in C3, on concrete) 3 175.00 100.54
Inlet Culvert Invert (Invert in C2, on concrete) 2 175.00 100.64
Inlet Culvert Invert (Invert in C1, on concrete) 1 175.00 100.67
U/S Headwater (Invert in C1, 1sy resting) 1 175.00 100.90
U/S Headwater (Invert in C2, 1st resting) 2 175.00 100.90
U/S Headwater (Invert in C3, 1st resting) 3 175.00 100.90

Notes:

  1. River distance is measured continuously throughout the survey reach along the thalweg of the stream.
  2. Measured from each end of the crossing along the thalweg of the stream.

Fish Sampling Efforts

Gear Type: Visual Observation, Ground (A) Trap Duration(h): 30.0
Channel Type: Main Channel (>50% of water flow)
Comments: Visual observation
 
Gear Type: Visual Observation, Ground (B) Trap Duration(h): 30.0
Channel Type: Main Channel (>50% of water flow)
Comments: Visual observation

Fish Observations

Species: juvenile salmonid-unspecified Life History: Unknown
Total Fish Observed: 2 Fish Measured: 2 Fork Lengths (mm) Min: 8 Max: 8 Mean: 8
Collected/Observed by Gear Type: Downstream Visual Observation, Ground (1)  Upstream Visual Observation, Ground (1)  

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