Fish Passage Site 20100582

Coordinates (dec. deg.): 61.90739°, -147.30538°
Legal Description: S021N012E17
Region: South Central
Road Name: Glenn Highway

Datum: NAD83
Quad Name / ITM: Anchorage D-1
AWC Stream #:
Stream Name:

Elevation:

Site Comments: Connects ponds to Tahneta Lake. U/S is a pond and D/S is a beaver marsh so we did not take widths to obtain a constriction ratio. Also no azimuths were recorded for the same reason.

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 CRB02-GL258

Observers: Dean Beers, James Laurence, James Laurence

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:
 
Length(ft): 134.0
Inlet Type:
Outlet Type:
Corrugation Depth(in.):
Corrugation Width(in.):
Condition Rating(1-5):
Approach Angle:
Sedimentation At Inlet:
Inlet Substrate:
Outlet Substrate:
InletOutlet
Width(ft):3.0
Height(ft):2.8
Apron Length(ft):
Water Depth(ft): 0.05
Rustline Height(ft):0.3
Substrate Depth(ft):
Backwatered?:
Baffles Present: No
Embedded?: No
Outfall Height:
Outfall Type:
Constriction Ratio:
Culvert Gradient: 0.02%
Max Slope:
Max Slope Length:

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:
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)
D/S Tailcrest or 1st Thalweg 86.46
Outlet Invert 1 0.00 0.0 87.06
Outlet Thalweg 1 0.00 0.0 86.25
Inlet Culvert Invert 1 134.00 0.0 87.09
Inlet Thalweg 1 134.00 0.0 87.09

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.

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