Fish Passage Site 20401333

Coordinates (dec. deg.): 61.61571°, -149.20891°
Legal Description: S018N001E26
Region: South Central
Road Name: North 49th State Street

Datum: NAD83
Quad Name / ITM: Anchorage C-6
AWC Stream #: 247-50-10260-2019-3066-4025
Stream Name: Wasilla Creek tributary

Elevation:

Site Comments: None

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-WA025

Observers: Edward Weiss, Olof Jacobsson, Joe Conner

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools:
Construction Year:


Site Observations:

  1. Culvert gradient red

Comments: None

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated Metal) Fish Passage Rating: Red
 
Length(ft): 55.4
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: Sand
Outlet Substrate: Sand
InletOutlet
Width(ft):2.0 2.0
Height(ft):2.0 2.0
Apron Length(ft):
Water Depth(ft):0.6 0.2
Rustline Height(ft):
Substrate Depth(ft):0.0 0.0
Backwatered?:
Baffles Present: No
Embedded?: No
Outfall Height:
Outfall Type:
Constriction Ratio:
Culvert Gradient: 2.71%
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. Culvert gradient red

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:SandSand
Subdominant:
Stream Slope(deg.):
Stream Flow Stage:
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Downstream ordinary high water 50.0 6.00
Downstream ordinary high water 85.0 8.00

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
D/S Thalweg 87.33
Outlet Culvert Top 1 90.58
Inlet Culvert Top 1 91.97
D/S Thalweg 0.00 85.0 87.00
D/S Tailcrest or 1st Thalweg 81.60 3.4 88.27
OHW Left Bank 82.20 2.8 88.12
D/S Thalweg 83.40 1.6 88.01
Outlet Thalweg 1 85.00 0.0 88.27
Outlet Invert 1 85.00 0.0 88.60
Road Elev 112.50 97.20
Road Elev 112.50 97.41
Inlet Culvert Invert 1 140.00 0.0 90.10
Inlet Thalweg 1 140.00 0.0 90.12
U/S Thalweg 1 140.60 0.6 90.24
U/S Thalweg 143.60 3.6 90.17

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

No photos available.

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