Fish Passage Site 20401313

Coordinates (dec. deg.): 61.54244°, -149.23131°
Legal Description: S017N001E23
Region: South Central
Road Name: Alaska Railroad

Datum: NAD83
Quad Name / ITM: Anchorage C-6
AWC Stream #:
Stream Name: Rabbit Slough tributary

Elevation:

Site Comments: site is located on the Matanuska Spur railroad line

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-RS085

Observers: Olof Jacobsson, Edward Weiss

Overall Fish Passage Rating: Gray

Tidal: No
Backwatered: No

Step Pools:
Construction Year:


Comments: None

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated Metal) Fish Passage Rating: Gray
 
Length(ft): 60.0
Inlet Type: Projecting
Outlet Type:
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 2.67
Condition Rating(1-5):
Approach Angle:
Sedimentation At Inlet:
Inlet Substrate: Gravel
Outlet Substrate: Gravel
InletOutlet
Width(ft):2.5 2.5
Height(ft):2.4 2.5
Apron Length(ft):
Water Depth(ft):0.52 0.63
Rustline Height(ft):
Substrate Depth(ft):0.1 0.0
Backwatered?:
Baffles Present: No
Embedded?: No
Outfall Height:
Outfall Type: At Stream Grade
Constriction Ratio:
Culvert Gradient: 0.93%
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. None of this type
  2. Culvert gradient gray

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:GravelGravel
Subdominant:
Stream Slope(deg.):
Stream Flow Stage:

No stream width data available.

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
U/S Thalweg 1 89.25
Outlet Culvert Top 1 91.94
Inlet Culvert Top 1 92.27
Outlet Invert 1 0.00 0.0 89.41
Outlet Thalweg 1 0.00 0.0 89.47
Road Elev 30.00 94.73
Road Elev 30.00 94.98
Inlet Culvert Invert 1 60.00 0.0 89.97
Inlet Thalweg 1 62.00 2.0 89.62

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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