Fish Passage Site 20601527
Coordinates (dec. deg.): 61.06325°, -151.36644°
Legal Description: S011N012W11
Region: South Central
Road Name: Tyonek Timber Road
Quad Name / ITM: Tyonek A-4
AWC Stream #:
Stream Name: Old Tyonek Creek
Site Comments: AKA Roberts Creek
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Project Supervisor: Gillian O'Doherty, ADFG
Observers: Mark Eisenman, Robert Pype
Overall Fish Passage Rating:
Step Pools: No
Construction Year: 2015
- None of this type
Comments: Site looks good. Upstream root wads appear to have been set too high and are starting to be under cut. No traps set, no fish observed. Long profile used the site's permanent benchmark for elevations
|ID: 1||Structure Type: Open-bottom arch (Structural steel plate)||Fish Passage Rating:|
No stream width data available.
|D/S Thalweg (End of constructed outlet reach)||0.00||95.72|
|D/S Water Surface Elev||0.00||97.16|
|D/S Thalweg (Middle of constructed outlet reach)||65.00||97.02|
|D/S Water Surface Elev||65.00||98.09|
|Outlet Invert (On substrate)||115.00||97.60|
|D/S Water Surface Elev||115.00||98.64|
|Outlet Culvert Top||115.00||108.81|
|Inlet Culvert Top||159.40||109.67|
|Inlet Culvert Invert (On substrate, 1st resting habitat)||159.40||98.01|
|U/S Water Surface Elev||159.40||98.89|
|U/S Thalweg (Middle of upstream constructed reach)||254.40||99.42|
|U/S Water Surface Elev||254.40||100.17|
|U/S Thalweg (End of upstream constructed reach)||339.40||100.79|
|U/S Water Surface Elev||339.40||102.17|
- River distance is measured continuously throughout the survey reach along the thalweg of the stream.
- Measured from each end of the crossing along the thalweg of the stream.
Fish Sampling Efforts
No fish sampling occurred during this survey.
No fish observations occurred during this survey.
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