Fish Passage Site 10302167

Coordinates (dec. deg.): 58.41321°, -134.54526°
Legal Description: C040S066E08
Region: Southeast
Road Name: Glacier Spur Road

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

Elevation:

Site Comments: None

Survey Date: Jun 09, 2011

Survey SEA11-MGR01

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

Overall Fish Passage Rating: Gray

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Site Observations:

  1. Outfall height red
  2. Culvert gradient gray
  3. Debris Flow

Comments: No fish data recorded, no traps set as stream is already in the AWC. Stream begins to braid quickly upstream after end of pipe so downstream widths were used. Old beaver activity in area. Majority of flow is through C2.

Culvert Measurements

ID: 1 Structure Type: Pipe-arch (Structural steel plate) Fish Passage Rating: Gray
 
Length(ft): 93.3
Inlet Type: Mitered
Outlet Type: Mitered
Corrugation Depth(in.): 2.0
Corrugation Width(in.): 6.0
Condition Rating(1-5): 3
Approach Angle: 4.0
Sedimentation At Inlet: No
Inlet Substrate: Sand
Outlet Substrate: Cobble
InletOutlet
Width(ft):8.5 8.5
Height(ft):6.5 5.8
Apron Length(ft):0.0 0.0
Water Depth(ft): 0.31
Rustline Height(ft):1.1
Substrate Depth(ft):0.0 0.35
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio: 1.0
Culvert Gradient: 1.64%
Max Slope:
Max Slope Length:
 

Comments: Total length of pipe is 93.3 with the inlet miter length measuring 9.1 and the outlet measuring 9.2. Pipe gradient determined with the invert at the end of the enclosed section of pipe.

  Culvert Observations:
  1. Culvert gradient gray
  2. Debris Flow
ID: 2 Structure Type: Pipe-arch (Structural steel plate) Fish Passage Rating: Red
 
Length(ft): 91.2
Inlet Type: Mitered
Outlet Type: Projecting
Corrugation Depth(in.): 2.0
Corrugation Width(in.): 6.0
Condition Rating(1-5): 3
Approach Angle: 4.0
Sedimentation At Inlet: Yes
Inlet Substrate: Sand
Outlet Substrate: Cobble
InletOutlet
Width(ft):8.5 8.5
Height(ft):6.15 6.5
Apron Length(ft):0.0 0.0
Water Depth(ft): 0.52
Rustline Height(ft):0.9
Substrate Depth(ft):0.35 0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height: 0.76
Outfall Type: Free Fall In To Pool
Constriction Ratio: 1.0
Culvert Gradient: 0.84%
Max Slope:
Max Slope Length:
 

Comments: Total length of pipe is 91.2 with the inlet miter measuring 15.2'. Pipe gradient determined with invert at the end of the enclosed section of pipe.

  Culvert Observations:
  1. Outfall height red

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:GravelGravel
Subdominant:SandSand
Stream Slope(deg.):
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)
Stream
Width (ft)
Downstream ordinary high water 222.0 15.90
Downstream ordinary high water 309.0 16.80
Downstream ordinary high water 391.0 18.50

Elevations

Locator ID Culvert
Number
River
Distance (ft)1
Distance From
Crossing (ft)2
Relative
Elevation (ft)
Road Elev 97.52
D/S Grade Ctrl (Thalweg) 0.00 84.83
D/S Water Surface Elev 0.00 86.56
D/S Grade Ctrl (Thalweg) 156.00 85.00
D/S Water Surface Elev 156.00 86.89
D/S Tailcrest or 1st Thalweg (C2, Tailwater control) 2 193.00 86.66
Max Pool Depth (C2) 2 196.00 85.87
Outlet Culvert Top (C2 Invert out TOP on metal) 2 198.00 93.49
D/S Grade Ctrl (Thalweg) (C1) 1 199.00 86.58
D/S Water Surface Elev (C1) 1 199.00 87.13
Outlet Pool Water Elev (C2, Invert out water surface of pool below pipe) 2 199.10 87.21
Outlet Invert (C2, Invert out BOP on metal) 2 199.10 87.45
D/S Water Surface Elev (C2, Invert out) 2 199.10 87.97
D/S Water Surface Elev (C1, Invert out, BOP on metal) 1 244.00 88.27
Outlet Invert (C1, Invert out, BOP on metal) 1 244.00 87.96
Misc. (C1, Invert out top of miter) 1 253.20 93.80
Misc. (C2, Invert in top of miter) 2 274.00 94.13
Inlet Thalweg (C2, Invert in on substrate) 2 289.20 88.44
U/S Water Surface Elev (C2, Invert in) 2 289.20 89.63
U/S Thalweg (C2, Invert in) 2 292.20 88.72
U/S Headwater (C2, Headwater surface, Invert in) 2 292.20 89.79
Misc. (C1, Invert in top of miter) 1 328.20 95.03
U/S Water Surface Elev (C1, Invert in) 1 337.30 89.78
Inlet Culvert Invert (C1, Invert in BOP on metal) 1 337.30 89.36
U/S Headwater (C1, Headwater surface, Invert in) 1 338.30 89.78
U/S Thalweg (C1, Invert in) 1 338.30 89.33

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: None (A)
Comments: No traps set no fish observed.

Fish Observations

No fish observations occurred during this survey.

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