Fish Passage Site 10302169

Coordinates (dec. deg.): 58.41444°, -134.54607°
Legal Description: C040S066E08
Region: Southeast
Road Name: Glacier Spur Road

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

Elevation:

Site Comments: None

Survey Date: Jun 09, 2011

Survey SEA11-MGR02

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

Overall Fish Passage Rating: Green

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Site Observations:

  1. Debris Flow

Comments: Pond upstream, culvert drains to Steep Creek. No traps were set as stream is already in AWC. Culvert was dry at time of survey. Approximately 100 yards North of MGR01. At ordinary high water backwater conditions are likely. Rust line at pond 1.5 feet. Fish observed in pond, likely salmonid. Debris in pipe. Constriction ratio and OHW width measurements omitted due to pond condition upstream and outlet is at confluence of Steep Creek.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Green
 
Length(ft): 64.8
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 3.0
Condition Rating(1-5): 3
Approach Angle:
Sedimentation At Inlet: Yes
Inlet Substrate: Silt/Clay
Outlet Substrate: Silt/Clay
InletOutlet
Width(ft):2.0 2.0
Height(ft):2.0 2.0
Apron Length(ft):0.0 0.0
Water Depth(ft): 0.0
Rustline Height(ft):1.6
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: 0.10%
Max Slope:
Max Slope Length:
 

Comments: Culvert was dry at time of culvert, but looking at rust line height culvert is likely backwatered when stream is high enough to back water up into pond.
  Culvert Observations:
  1. Debris Flow

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:SandSand
Subdominant:OrganicGravel
Stream Slope(deg.):
Stream Flow Stage:Dry

No stream width data available.

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Road Elev 99.43
D/S Thalweg 0.00 94.50
D/S Water Surface Elev 0.00 94.83
D/S Water Surface Elev (Water surface directly below culvert) 1.00 94.83
Outlet Invert (Invert out, BOP on metal) 1.00 95.23
D/S Thalweg (Substrate directly below pipe at invert out) 1.00 94.57
Outlet Culvert Top (Invert out, TOP on metal) 1.00 97.28
Inlet Culvert Top (Invert in, TOP on metal) 65.80 97.33
U/S Thalweg (Substrate directly below pipe at invert in) 65.80 94.63
Inlet Culvert Invert (Invert in, BOP on metal) 65.80 95.29
U/S Water Surface Elev 66.80 94.57
U/S Thalweg 66.80 94.44

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)
Comments: Unidentified fish, likely salmonids, observed in upstream pool.

Fish Observations

No fish observations occurred during this survey.

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