Fish Passage Site 20501501

Coordinates (dec. deg.): 62.44318°, -150.70003°
Legal Description: S027N008W11
Region: South Central
Road Name: Petersville Road

Datum: WGS84
Quad Name / ITM: Talkeetna B-2
AWC Stream #:
Stream Name: Deep 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-PVR24

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

Overall Fish Passage Rating: Green

Tidal: No
Backwatered: No

Step Pools:
Construction Year:


Site Observations:

  1. Culvert is poorly aligned
  2. Beaver Activity

Comments: Visual observations of juvinile salmonids u/s and d/s. Adverse grade in both pipes. Beaver dams upstream from culverts

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Green
 
Length(ft): 44.1
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 2.67
Condition Rating(1-5): 2
Approach Angle: 50.0
Sedimentation At Inlet: Yes
Inlet Substrate: None
Outlet Substrate: None
InletOutlet
Width(ft):4.2 4.2
Height(ft):3.8 3.7
Apron Length(ft):
Water Depth(ft): 0.15
Rustline Height(ft):0.9
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: 0.8
Culvert Gradient: -0.82%
Max Slope:
Max Slope Length:
 

Comments: Adverse grade
  Culvert Observations:
  1. Culvert is poorly aligned
  2. Beaver Activity
ID: 2 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Green
 
Length(ft): 44.3
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 2.67
Condition Rating(1-5): 2
Approach Angle: 50.0
Sedimentation At Inlet: Yes
Inlet Substrate: None
Outlet Substrate: None
InletOutlet
Width(ft):4.1 4.1
Height(ft):3.8 3.8
Apron Length(ft):
Water Depth(ft): 0.27
Rustline Height(ft):0.9
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: 0.8
Culvert Gradient: -0.70%
Max Slope:
Max Slope Length:
 

Comments: Adverse grade.
  Culvert Observations:
  1. Culvert is poorly aligned
  2. Beaver Activity

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:Silt/ClayGravel
Subdominant:Gravel
Stream Slope(deg.):
Stream Flow Stage:Medium
Stream Width Type Distance From
Crossing (ft)		 Stream
Width (ft)
Downstream ordinary high water 35.0 8.50
Downstream ordinary high water 66.0 7.50
Downstream ordinary high water 123.0 6.00

Elevations

Locator ID Culvert
Number		 River
Distance (ft)1		 Distance From
Crossing (ft)2		 Relative
Elevation (ft)
Outlet Pool Water Elev 1 96.75
Outlet Pool Water Elev 2 96.75
U/S Headwater 1 96.79
U/S Headwater (pool immed u/s of inlets) 2 96.80
D/S Grade Ctrl (Thalweg) 0.00 41.0 96.10
D/S Water Surface Elev (WS @ GP) 0.00 41.0 96.45
D/S Tailcrest or 1st Thalweg 29.00 12.0 96.41
D/S Water Surface Elev (WS @ TWC) 29.00 12.0 96.71
D/S Thalweg (bottom of pool) 1 36.00 5.0 95.78
Outlet Invert 2 41.00 0.0 96.48
Outlet Invert 1 41.00 0.0 96.60
D/S Thalweg (stream bed @ end of pipe 1) 1 41.00 0.0 96.18
Road Elev 63.00 102.82
Inlet Culvert Invert 1 85.00 0.0 96.24
Inlet Culvert Invert 2 85.00 0.0 96.17

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: Visual Observation, Ground (A)
Comments: Visual observations of juvenile salmonids upstream and downstream of culverts.

Fish Observations

No fish observations occurred during this survey.

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