Fish Passage Site 20501517

Coordinates (dec. deg.): 62.31512°, -150.20398°
Legal Description: S026N005W28
Region: South Central
Road Name: Susitna River Road

Datum: WGS84
Quad Name / ITM: Talkeetna B-1
AWC Stream #:
Stream Name: Trapper Creek tributary

Elevation:

Site Comments: None

Survey Date: Jun 03, 2009

Survey PRK09-SRR02

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. Constriction ratio red
  2. Culvert gradient gray

Comments: HWS = BWS = backwatered.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Green
 
Length(ft): 50.4
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 2.67
Condition Rating(1-5): 3
Approach Angle: 69.0
Sedimentation At Inlet: No
Inlet Substrate: None
Outlet Substrate: None
InletOutlet
Width(ft):2.8 3.0
Height(ft):2.9 2.9
Apron Length(ft):
Water Depth(ft): 2.21
Rustline Height(ft):2.2
Substrate Depth(ft):0.0 0.0
Backwatered?: Yes
Baffles Present: No
Embedded?: No
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio: 0.09
Culvert Gradient: 0.69%
Max Slope:
Max Slope Length:
 

Comments: 1st 1ft of pipe broken at inlet end;
  Culvert Observations:
  1. Constriction ratio red
  2. Culvert gradient gray

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:Silt/ClaySilt/Clay
Subdominant:
Stream Slope(deg.):
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Upstream ordinary high water 153.0 33.00
Upstream ordinary high water 201.0 32.00
Upstream ordinary high water 272.0 29.00

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
U/S Headwater 1 98.88
Outlet Pool Water Elev 1 98.89
D/S Water Surface Elev 1 0.00 47.0 98.88
D/S Water Surface Elev (ws @ GP) 1 44.00 3.0 98.89
D/S Grade Ctrl (Thalweg) (TWC? (weak)) 1 44.00 3.0 97.10
D/S Water Surface Elev (ws @ GP) 1 46.30 0.7 98.88
Outlet Invert 1 47.00 0.0 96.68
Road Elev 1 72.00 103.55
Inlet Culvert Invert 1 97.00 0.0 97.03
U/S Grade Ctrl (Thalweg) 1 97.70 0.7 97.25

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; 150ft u/s
 
Gear Type: Minnow Trap (B) Trap Duration(h): 1.0
Comments: no fish caught; 30ft d/s

Fish Observations

No fish observations occurred during this survey.

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