Fish Passage Site 20501513

Coordinates (dec. deg.): 62.30718°, -150.18503°
Legal Description: S026N005W27
Region: South Central
Road Name: Saunders Road

Datum: WGS84
Quad Name / ITM: Talkeetna B-1
AWC Stream #:
Stream Name: Susitna River tributary

Elevation:

Site Comments: None

Survey Date: Jun 03, 2009

Survey PRK09-SAU01

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

Overall Fish Passage Rating: Red

Tidal: No
Backwatered: No

Step Pools:
Construction Year:


Site Observations:

  1. Constriction ratio red
  2. Culvert gradient red
  3. Shallow fill; inadequate roadfill volume above culvert

Comments: Pipe has bend in bottom 1/5 of length; otherwise cond good; no fish captured.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Red
 
Length(ft): 30.8
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 2.67
Condition Rating(1-5): 3
Approach Angle: 36.0
Sedimentation At Inlet: Yes
Inlet Substrate: None
Outlet Substrate: None
InletOutlet
Width(ft):1.5 1.4
Height(ft):1.5 1.5
Apron Length(ft):
Water Depth(ft): 0.62
Rustline Height(ft):1.0
Substrate Depth(ft):0.0 0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio: 0.32
Culvert Gradient: 1.59%
Max Slope:
Max Slope Length:
  Culvert Observations:
  1. Constriction ratio red
  2. Culvert gradient red
  3. Shallow fill; inadequate roadfill volume above culvert

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:Silt/ClaySilt/Clay
Subdominant:Silt/ClaySilt/Clay
Stream Slope(deg.):
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Downstream ordinary high water 185.0 5.50
Downstream ordinary high water 200.0 4.00
Downstream ordinary high water 216.0 4.50

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Outlet Pool Water Elev 1 98.59
U/S Headwater 1 99.00
D/S Water Surface Elev 1 0.00 28.0 98.28
D/S Grade Ctrl (Thalweg) 1 0.00 28.0 97.85
D/S Tailcrest or 1st Thalweg 1 15.30 12.7 98.09
D/S Water Surface Elev 1 15.30 12.7 98.46
D/S Thalweg (bottom of outlet pool (sc)) 1 21.90 6.1 96.80
D/S Water Surface Elev 1 26.60 1.4 99.04
Outlet Invert 1 28.00 0.0 97.97
Road Elev 1 43.00 102.06
Inlet Culvert Invert 1 58.00 0.0 98.46
U/S Grade Ctrl (Thalweg) 1 59.40 1.4 98.60

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): 1.0
Comments: no fish caught; 75ft u/s
 
Gear Type: Minnow Trap (B) Trap Duration(h): 1.0
Comments: no fish caught; 31ft d/s

Fish Observations

No fish observations occurred during this survey.

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