Fish Passage Site 20501472

Coordinates (dec. deg.): 62.10631°, -150.52565°
Legal Description: S023N007W03
Region: South Central
Road Name: Oil Well Road

Datum: WGS84
Quad Name / ITM: Talkeetna A-2
AWC Stream #:
Stream Name: Kroto Creek tributary

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 UPDATE-01472

Project Supervisor: Gillian O'Doherty, ADFG
Observers: Gillian O'Doherty, Mark Eisenman

Overall Fish Passage Rating: Green

Tidal: No
Backwatered: No

Step Pools: No
Construction Year: 2014


Site Observations:

  1. None of this type

Comments: **Updated site photos and fish sampling information added from 9/7/16 site visit from Sampling Unmapped Streams in the MSB project.*** Replaced in 2014, resurveyed 10/21/15. No stream widths muiltiple channels, wetlands and lakes. No fish caught or observed.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated steel) Fish Passage Rating: Green
 
Length(ft): 60.6
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 3.0
Condition Rating(1-5): 5
Approach Angle: 10.0
Sedimentation At Inlet: No
Inlet Substrate: Sand
Outlet Substrate: Sand
InletOutlet
Width(ft):7.6 7.9
Height(ft):4.1 4.1
Apron Length(ft):
Water Depth(ft): 0.52
Rustline Height(ft):
Substrate Depth(ft):3.9 3.8
Backwatered?: No
Baffles Present: No
Embedded?: Yes
Embedded Depth(ft): 3.8
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio:
Culvert Gradient: 1.09%
Max Slope:
Max Slope Length:
 

Comments: Stream slope taken from replacement plans. Plans call for a pipe arch but culvert appears to be a circular CSP.

  Culvert Observations:
  1. None of this type

Stream Measurements

Stream SubstratesUpstreamDownstream
Dominant:OrganicSand
Subdominant:SandGravel
Stream Slope(deg.):0.57
Stream Flow Stage:High

No stream width data available.

Elevations

Locator ID Culvert
Number
River
Distance (ft)1
Distance From
Crossing (ft)2
Relative
Elevation (ft)
Road Elev 102.24
Outlet Culvert Top 0.00 99.48
D/S Water Surface Elev 0.00 95.91
Outlet Invert (on substrate) 0.00 95.39
Inlet Culvert Top 60.60 100.14
Split into USWS and DSWS 60.60 96.39
Inlet Culvert Invert (on substrate) 60.60 95.97

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): 30.0
Comments: No fish caught or observed
 
Gear Type: Minnow Trap (B) Trap Duration(h): 30.0
Comments: No fish caught or observerd
 
Gear Type: Smith-Root LR-24 (C)
Comments: Site sampled 9/7/16, sampled about 300 feet upstream and downstream of crossing, no fish encountered.

Fish Observations

No fish observations occurred during this survey.

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