Fish Passage Site 20501193

Coordinates (dec. deg.): 61.45491°, -149.80890°
Legal Description: S016N003W28
Region: South Central
Road Name: Lewis Loop

Datum: WGS84
Quad Name / ITM: Anchorage B-8
AWC Stream #:
Stream Name: Fish 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 MSB09-LEW01

Project Supervisor: Gillian O'Doherty, ADFG
Observers: Heidi Zimmer, Ben Histand

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools: No
Construction Year:


Site Observations:

  1. Outfall height red
  2. Compound gradient in pipe

Comments: CG - greater slope in lower half of pipe (pipe bows up in middle).

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Red
 
Length(ft): 45.9
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 2.67
Condition Rating(1-5): 2
Approach Angle: 2.0
Sedimentation At Inlet: Yes
Inlet Substrate: None
Outlet Substrate: None
InletOutlet
Width(ft):2.0 2.1
Height(ft):2.0 2.0
Apron Length(ft):
Water Depth(ft): 0.03
Rustline Height(ft):2.0
Substrate Depth(ft):0.0 0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height: 0.46
Outfall Type: Free Fall In To Pool
Constriction Ratio:
Culvert Gradient: 0.07%
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. Outfall height red
  2. Compound gradient in pipe

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:Silt/ClaySilt/Clay
Subdominant:Silt/ClaySilt/Clay
Stream Slope(deg.):
Stream Flow Stage:Low

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 1 0.00 4.0 97.26
D/S Water Surface Elev 1 0.00 4.0 97.57
D/S Thalweg (bottom out pool) 1 3.00 1.0 96.81
D/S Thalweg 1 4.00 0.0 97.20
Outlet Pool Water Elev 1 4.00 0.0 97.57
Outlet Invert 1 4.00 0.0 98.00
Road Elev 1 26.50 0.0 101.53
Inlet Culvert Invert 1 50.00 0.0 98.03
U/S Headwater 1 50.00 0.0 98.72

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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