Fish Passage Site 10302194

Coordinates (dec. deg.): 58.41480°, -134.61061°
Legal Description: C040S065E12
Region: Southeast
Road Name: Montana Creek Road

Datum: NAD83
Quad Name / ITM: Juneau B-2
AWC Stream #:
Stream Name: Montana Creek side channel

Elevation:

Site Comments: None

Survey Date: Jun 24, 2011

Survey SEA11-MCR02

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. Culvert gradient gray

Comments: Pipes are dry except in oulet that converge with Montanta Creek. Culverts set as overflow for MCR01downstream. Culvert exit for side channel that comes in from MCR01. Culverts empty into Montana Creek directly below oulets. There is a drop below pipe; water would only go through the pipe during high water levels. Upstream grade omitted; dry/Muskeg.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Gray
 
Length(ft): 45.1
Inlet Type: Mitered
Outlet Type: Projecting
Corrugation Depth(in.): 1.0
Corrugation Width(in.): 3.0
Condition Rating(1-5): 4
Approach Angle:
Sedimentation At Inlet: Yes
Inlet Substrate: Organic
Outlet Substrate: None
InletOutlet
Width(ft):6.0 6.1
Height(ft):5.7 6.1
Apron Length(ft):
Water Depth(ft): 0.2
Rustline Height(ft):0.3
Substrate Depth(ft):0.3 0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio:
Culvert Gradient: 1.70%
Max Slope:
Max Slope Length:
 

Comments: 1 of 2
  Culvert Observations:
  1. Culvert gradient gray
ID: 2 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Gray
 
Length(ft): 45.0
Inlet Type: Mitered
Outlet Type: Projecting
Corrugation Depth(in.): 1.0
Corrugation Width(in.): 3.0
Condition Rating(1-5): 4
Approach Angle:
Sedimentation At Inlet: Yes
Inlet Substrate: Organic
Outlet Substrate: None
InletOutlet
Width(ft):6.0 6.1
Height(ft):5.6 6.1
Apron Length(ft):
Water Depth(ft): 0.26
Rustline Height(ft):0.5
Substrate Depth(ft):0.4 0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio:
Culvert Gradient: 1.73%
Max Slope:
Max Slope Length:
 

Comments: 2/2
  Culvert Observations:
  1. Culvert gradient gray

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:OrganicGravel
Subdominant:Silt/ClayCobble
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 100.00
D/S Water Surface Elev (Water surface of Montana Creek just below outlets) 0.00 92.26
D/S Water Surface Elev 2 1.00 92.26
Misc. (Substrate elevation directly below culvert outlet.) 1 1.00 91.30
Misc. (Substrate elevation directly below culvert outlet) 2 1.00 91.32
Outlet Invert (on metal) 2 1.00 92.00
Outlet Invert (on metal) 1 1.00 92.03
D/S Water Surface Elev 1 1.00 92.23
Outlet Culvert Top 2 1.00 98.12
Outlet Culvert Top 1 1.00 98.18
Inlet Culvert Top (top of miter) 2 41.00 98.81
Inlet Culvert Top (top of miter) 1 41.00 98.86
Inlet Culvert Invert (on substrate) 1 46.00 94.14
Inlet Culvert Invert (on substrate) 2 46.00 94.28
U/S Grade Ctrl (Thalweg) (wetted edge of bank of side channel of Montana Creek) 68.00 94.03
U/S Water Surface Elev 69.00 92.74

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 site was dry at time of survey.

Fish Observations

No fish observations occurred during this survey.

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