Fish Passage Site 10302264

Coordinates (dec. deg.): 58.45108°, -135.78388°
Legal Description: C039S058E35
Region: Southeast
Road Name: Mountain View Road

Datum: NAD83
Quad Name / ITM: Juneau B-6
AWC Stream #:
Stream Name: Good River drainage

Elevation:

Site Comments: None

Survey Date: Aug 14, 2011

Survey SEA11-MTV09

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

Overall Fish Passage Rating: Green

Tidal: No
Backwatered: Yes

Step Pools: No
Construction Year:


Site Observations:

  1. Culvert is poorly aligned

Comments: Cross drain of roadside ditch system. No discernable tailwater, could be backwatered from somewhere further downstream. Nearly right angle aproach.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Green
 
Length(ft): 51.0
Inlet Type: Mitered
Outlet Type: Mitered
Corrugation Depth(in.): 1.0
Corrugation Width(in.): 3.0
Condition Rating(1-5): 3
Approach Angle: 85.0
Sedimentation At Inlet: Yes
Inlet Substrate: Silt/Clay
Outlet Substrate: Silt/Clay
InletOutlet
Width(ft):5.5 5.5
Height(ft):3.3 2.3
Apron Length(ft):
Water Depth(ft): 0.46
Rustline Height(ft):2.2
Substrate Depth(ft):2.2 3.0
Backwatered?: Yes
Baffles Present: No
Embedded?: Yes
Embedded Depth(ft): 2.2
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio: 0.76
Culvert Gradient: -2.10%
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. Culvert is poorly aligned

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:Silt/ClaySilt/Clay
Subdominant:SandSand
Stream Slope(deg.):0.08
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Upstream ordinary high water 30.0 7.70
Upstream ordinary high water 60.0 7.20
Upstream ordinary high water 90.0 6.70

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Road Elev 102.78
Misc. (No discernable d/s grade points) 0.00 97.71
D/S Water Surface Elev (glide) 0.00 98.28
D/S Water Surface Elev (end of miter) 5.00 98.29
Outlet Thalweg (end of miter) 5.00 97.83
Outlet Culvert Top (top of miter) 12.00 99.86
Inlet Culvert Top (top of miter) 63.00 99.97
U/S Headwater (end of miter, 1st resting) 70.00 98.32
Inlet Thalweg (end of miter) 70.00 96.76
U/S Water Surface Elev 80.00 98.31
U/S Water Surface Elev 240.00 98.44

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

Fish Observations

No fish observations occurred during this survey.

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