Fish Passage Site 20501496

Coordinates (dec. deg.): 62.53283°, -150.48818°
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

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 PRK09-PVR19

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

Comments: All pipes rusted all around; 3 non-corrugated pipes stacked in triangle; #3 on top; most flow in pipe 2. **Updated site photos added from 9/8/16 site visit from Sampling Unmapped Streams in the MSB project. Fish sampling informatin entered into AFFI.

Culvert Measurements

ID: 1 Structure Type: Oval (Non-corrugated metal) Fish Passage Rating: Red
 
Length(ft): 39.7
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.):
Corrugation Width(in.):
Condition Rating(1-5): 2
Approach Angle: 71.0
Sedimentation At Inlet: Yes
Inlet Substrate: None
Outlet Substrate: None
InletOutlet
Width(ft):1.3 1.2
Height(ft):1.0 1.1
Apron Length(ft):
Water Depth(ft): 0.04
Rustline Height(ft):1.0
Substrate Depth(ft):0.0 0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height: 1.45
Outfall Type: Free Fall In To Pool
Constriction Ratio: 1.02
Culvert Gradient: 1.16%
Max Slope:
Max Slope Length:
 

Comments: Pipe rusted all around; 3 non-corrugated pipes stacked in triangle; #3 on top; most flow in pipe 2. Constriction ratio based on pipes 1 and 2.
  Culvert Observations:
  1. Outfall height red
ID: 2 Structure Type: Oval (Non-corrugated metal) Fish Passage Rating: Red
 
Length(ft): 39.8
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.):
Corrugation Width(in.):
Condition Rating(1-5): 2
Approach Angle: 71.0
Sedimentation At Inlet: Yes
Inlet Substrate: None
Outlet Substrate: None
InletOutlet
Width(ft):1.25 1.2
Height(ft):1.1 1.1
Apron Length(ft):
Water Depth(ft): 0.08
Rustline Height(ft):1.1
Substrate Depth(ft):0.0 0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height: 1.43
Outfall Type: Free Fall In To Pool
Constriction Ratio: 1.02
Culvert Gradient: 1.18%
Max Slope:
Max Slope Length:
 

Comments: pipe rusted all around; 3 non-corrugated pipes stacked in triangle; #3 on top; most flow in pipe 2
  Culvert Observations:
  1. Outfall height red
ID: 3 Structure Type: Oval (Non-corrugated metal) Fish Passage Rating: Red
 
Length(ft): 39.2
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.):
Corrugation Width(in.):
Condition Rating(1-5): 2
Approach Angle: 71.0
Sedimentation At Inlet: Yes
Inlet Substrate: None
Outlet Substrate: None
InletOutlet
Width(ft):1.2 1.4
Height(ft):1.0 0.9
Apron Length(ft):
Water Depth(ft): 0.0
Rustline Height(ft):1.0
Substrate Depth(ft):0.0 0.0
Backwatered?: No
Baffles Present: No
Embedded?: No
Outfall Height: 2.49
Outfall Type: Free Fall In To Pool
Constriction Ratio: 1.02
Culvert Gradient: 0.87%
Max Slope:
Max Slope Length:
 

Comments: pipe dry; rusted all around; 3 non-corrugated pipes stacked in triangle; #3 on top; most flow in pipe 2
  Culvert Observations:
  1. Outfall height red

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:GravelGravel
Subdominant:GravelSand
Stream Slope(deg.):
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Upstream ordinary high water 70.0 1.50
Upstream ordinary high water 95.0 2.00
Upstream ordinary high water 150.0 1.50

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Outlet Pool Water Elev 96.07
U/S Headwater 1 98.02
U/S Headwater 2 98.07
D/S Grade Ctrl (Thalweg) 0.00 56.0 94.58
D/S Water Surface Elev 0.00 56.0 94.72
D/S Water Surface Elev 39.00 17.0 98.81
D/S Tailcrest or 1st Thalweg 51.00 5.0 95.91
D/S Water Surface Elev 51.00 5.0 96.06
D/S Thalweg (bottom of plunge, also bottom of out pool) 54.80 1.2 95.59
Outlet Invert 2 56.00 0.0 97.42
Outlet Invert 1 56.00 0.0 97.48
Outlet Invert 3 56.00 0.0 98.56
Road Elev 75.50 106.16
Inlet Culvert Invert (overflow pipe) 3 95.00 0.0 98.90
Inlet Culvert Invert 2 95.00 0.0 97.89
Inlet Culvert Invert (approx (on subs)) 1 95.00 0.0 97.94
U/S Grade Ctrl (Thalweg) 112.00 17.0 98.66

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; 85ft u/s
 
Gear Type: Minnow Trap (B) Trap Duration(h): 1.0
Comments: no fish caught; 300ft d/s

Fish Observations

No fish observations occurred during this survey.

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