Fish Passage Site 20401312

Coordinates (dec. deg.): 61.53579°, -149.25305°
Legal Description: S017N001E27
Region: South Central
Road Name: Glenn Highway

Datum: NAD83
Quad Name / ITM: Anchorage C-7
AWC Stream #: 247-50-10260
Stream Name: Rabbit Slough

Elevation:

Site Comments: culvert is located on the Glenn Highway south of the Parks/Glenn interchange.

Multiple surveys have been conducted at this site — click on the drop down
arrow to the right of the survey date below to choose a different report for this site.

Survey MSCS1-RS066

Observers: Edward Weiss, Olof Jacobsson, Joe Conner

Overall Fish Passage Rating: Gray

Tidal: No
Backwatered: No

Step Pools:
Construction Year:


Comments: Spec Site Cond=OTH=constructed channel upstrm & 50' dwnstrm

Culvert Measurements

ID: 1 Structure Type: Closed-bottom arch (Strutural Metal Plate) Fish Passage Rating: Gray
 
Length(ft):
Inlet Type: Mitered
Outlet Type:
Corrugation Depth(in.): 1.0
Corrugation Width(in.): 3.0
Condition Rating(1-5):
Approach Angle:
Sedimentation At Inlet:
Inlet Substrate: Silt/Clay
Outlet Substrate: Silt/Clay
InletOutlet
Width(ft):7.0 7.0
Height(ft):6.0 5.0
Apron Length(ft):
Water Depth(ft):3.0 2.5
Rustline Height(ft):
Substrate Depth(ft):0.0 1.0
Backwatered?:
Baffles Present: No
Embedded?: No
Outfall Height:
Outfall Type:
Constriction Ratio: 0.33
Culvert Gradient:
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. None of this type

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:Silt/ClaySilt/Clay
Subdominant:
Stream Slope(deg.):
Stream Flow Stage:
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Downstream ordinary high water 37.0 50.00
Downstream ordinary high water 41.0 110.00
Upstream ordinary high water 45.0 21.00
Upstream ordinary high water 95.0 22.00

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Inlet Culvert Invert 1 0.0 83.62
Inlet Thalweg 1 0.0 84.43
Outlet Invert 1 0.0 84.63
U/S Thalweg 95.0 84.67
D/S Thalweg 110.0 84.70
U/S Thalweg 1 0.5 84.90
Outlet Thalweg 1 0.0 84.91
D/S Thalweg 84.93
U/S Thalweg 45.0 84.95
OHW Left Bank 3.0 85.29
Outlet Culvert Top 1 89.60
Inlet Culvert Top 1 90.44
Road Elev 95.65
Road Elev 95.89

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

No fish sampling occurred during this survey.

Fish Observations

No fish observations occurred during this survey.

Photos

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