Fish Passage Site 20501495

Coordinates (dec. deg.): 62.52876°, -150.87044°
Legal Description: S028N009W12
Region: South Central
Road Name: Petersville Road

Datum: WGS84
Quad Name / ITM: Talkeetna C-2
AWC Stream #:
Stream Name: Long Creek

Elevation:

Site Comments: None

Survey Date: Jun 29, 2009

Survey PRK09-PVR18

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 gray
  2. Shallow fill; inadequate roadfill volume above culvert
  3. Culvert is poorly aligned

Comments: ** Update site photos added from 9/8/16 site visit from Sampling Unmapped Streams in the MSB project. Fish sampling infromation entered into AFFI. ***

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Green
 
Length(ft): 60.0
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 2.67
Condition Rating(1-5): 4
Approach Angle: 58.0
Sedimentation At Inlet: Yes
Inlet Substrate: None
Outlet Substrate: Gravel
InletOutlet
Width(ft):3.0 3.0
Height(ft):3.0 2.4
Apron Length(ft):
Water Depth(ft): 0.88
Rustline Height(ft):0.0
Substrate Depth(ft):0.0 0.5
Backwatered?: Yes
Baffles Present: No
Embedded?: No
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio: 0.64
Culvert Gradient: -0.60%
Max Slope:
Max Slope Length:
 

Comments: Pipe 1 is backwatered.
  Culvert Observations:
  1. Constriction ratio gray
  2. Shallow fill; inadequate roadfill volume above culvert
  3. Culvert is poorly aligned
ID: 2 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Gray
 
Length(ft): 64.4
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 2.67
Condition Rating(1-5): 3
Approach Angle: 58.0
Sedimentation At Inlet: No
Inlet Substrate: None
Outlet Substrate: None
InletOutlet
Width(ft):1.9 2.0
Height(ft):2.0 2.0
Apron Length(ft):
Water Depth(ft): 0.0
Rustline Height(ft):0.0
Substrate Depth(ft):0.0 0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height:
Outfall Type: Overflow Pipe
Constriction Ratio: 0.64
Culvert Gradient: 0.16%
Max Slope:
Max Slope Length:
 

Comments: pipe 2 is dry overflow pipe
  Culvert Observations:
  1. Constriction ratio gray
  2. Shallow fill; inadequate roadfill volume above culvert
  3. Culvert is poorly aligned

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:GravelGravel
Subdominant:CobbleGravel
Stream Slope(deg.):
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Upstream ordinary high water 38.0 4.50
Upstream ordinary high water 112.0 5.50
Upstream ordinary high water 140.0 4.00

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
U/S Headwater (pool at inlet) 98.28
Outlet Pool Water Elev 98.28
D/S Water Surface Elev (ws @ GP) 0.00 48.0 98.21
D/S Grade Ctrl (Thalweg) (d/s grade pt) 0.00 48.0 98.09
D/S Tailcrest or 1st Thalweg 40.00 8.0 98.11
D/S Water Surface Elev 40.00 8.0 98.28
D/S Thalweg 44.50 3.5 97.83
Outlet Invert (on substrate) 1 48.00 0.0 97.40
Outlet Invert (no water) 2 48.00 0.0 99.13
Road Elev 79.00 103.67
Inlet Culvert Invert (no water) 2 110.00 0.0 99.23
Inlet Culvert Invert 1 110.00 0.0 97.04

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; 140ft u/s
 
Gear Type: Minnow Trap (B) Trap Duration(h): 1.0
Comments: no fish caught; 200ft d/s

Fish Observations

No fish observations occurred during this survey.

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