Fish Passage Site 20300206
Coordinates (dec. deg.): 60.95693°, -149.11571°
Legal Description: S010N002E16
Region: South Central
Road Name: Driveway
Quad Name / ITM: Seward D-6
AWC Stream #:
Stream Name: Glacier Creek tributary
Site Comments: Driveway off of Alyeska View Avenue. Just upstream from 20300204 and 20300205.
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Project Supervisor: Kim Clark, ADFG
— Anchorage, AK
Observers: Kim Clark, Michael Mazzacavallo
Overall Fish Passage Rating:
Step Pools: No
Construction Year: 2019
- Inlet perch
Comments: Culvert is installed steeper than stream. Sediment is about 1.4 feet below orange fill line on culvert. Rip rap has fallen in near inlet. Some bank erosion present both up and downstream. Bedload is at 80%. Monitoring recommended.
|ID: 1||Structure Type: Circular pipe (Corrugated steel)||Fish Passage Rating:|
Comments: Pipe gradient is designed at 3.84%. Stream gradient upstream of ditch and all culverts is 8.5% and stream gradient downstream is 2.7%.
|Stream Width Type||Distance From
|Downstream ordinary high water||7.0||7.70|
|Downstream ordinary high water||15.0||7.40|
|Downstream ordinary high water||21.0||7.80|
|Upstream ordinary high water||15.0||4.20|
|Upstream ordinary high water||29.0||2.80|
|Upstream ordinary high water||38.0||4.00|
|D/S Water Surface Elev||0.00||95.58|
|D/S Water Surface Elev||9.50||95.77|
|D/S Water Surface Elev||17.30||96.16|
|Outlet Culvert Top (top of outlet was bent. Measurement taken 1 corrugation back.)||20.00||100.00|
|D/S Water Surface Elev||20.00||96.30|
|Inlet Culvert Top||60.50||97.49|
|U/S Water Surface Elev||60.50||97.26|
|Inlet Culvert Invert||60.50||96.63|
|U/S Water Surface Elev||66.50||98.04|
|U/S Water Surface Elev||90.10||99.38|
- 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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