Fish Passage Site 20501220

Coordinates (dec. deg.): 61.58001°, -149.57333°
Legal Description: S017N002W11
Region: South Central
Road Name: Parks Highway

Datum: WGS84
Quad Name / ITM: Anchorage C-7
AWC Stream #:
Stream Name: Wetland drainage

Elevation:

Site Comments: None

Survey Date: Aug 25, 2009

Survey MSB09-PRK01

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

Overall Fish Passage Rating: Green

Tidal: No
Backwatered: Yes

Step Pools: No
Construction Year:


Site Observations:

  1. None of this type

Comments: TWC > INVOUT > INVIN = Backwatered; no fish caught.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Green
 
Length(ft): 200.5
Inlet Type: Flared Inlet
Outlet Type: Flared Inlet
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 2.67
Condition Rating(1-5): 3
Approach Angle: 18.0
Sedimentation At Inlet: Yes
Inlet Substrate: Silt/Clay
Outlet Substrate: Gravel
InletOutlet
Width(ft):4.9 4.9
Height(ft):4.6 3.6
Apron Length(ft):7.0 7.0
Water Depth(ft): 0.39
Rustline Height(ft):1.6
Substrate Depth(ft):0.3 1.3
Backwatered?: Yes
Baffles Present: No
Embedded?: No
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio:
Culvert Gradient: -0.05%
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. None of this type

Stream Measurements

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

No stream width data available.

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Outlet Pool Water Elev 1 96.44
U/S Headwater 1 96.46
D/S Water Surface Elev (channel goes to muck) 1 0.00 20.0 96.19
D/S Thalweg (end of apron) 1 13.00 7.0 96.22
D/S Tailcrest or 1st Thalweg 1 15.70 4.3 96.26
D/S Water Surface Elev (@TWC) 1 15.70 4.3 96.43
Outlet Invert 1 20.00 0.0 96.05
Inlet Culvert Invert (on substrate) 1 220.50 0.0 95.95
U/S Thalweg (end of apron / u/s is still pool) 1 227.50 7.0 96.00

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

Gear Type: Minnow Trap (A) Trap Duration(h): 1.5
Comments: no fish caught; 25ft d/s

Fish Observations

No fish observations occurred during this survey.

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