Fish Passage Site 20303515
Coordinates (dec. deg.): 60.97443°, -149.09525°
Legal Description: S010N002E09
Region: South Central
Road Name: Arlberg Avenue
Quad Name / ITM: Seward D-6
AWC Stream #: 247-60-10250-2018-3132
Stream Name: Unnamed
Site Comments: None
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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: 2016
Comments: Willow stakes did not survive. Monitoring is recommended due to downcutting at inlet and upstream.
|ID: 1||Structure Type: Pipe-arch (Structural aluminum plate)||Fish Passage Rating:|
|Stream Width Type||Distance From
|Upstream ordinary high water||62.8||8.30|
|Upstream ordinary high water||94.0||8.00|
|Upstream ordinary high water||153.0||6.40|
|U/S Grade Ctrl (Thalweg)||0.00||96.81|
|U/S Water Surface Elev||0.00||97.42|
|U/S Grade Ctrl (Thalweg)||35.00||96.13|
|U/S Water Surface Elev||35.00||96.65|
|Inlet Culvert Invert||56.00||96.23|
|U/S Water Surface Elev||56.00||96.52|
|Inlet Culvert Top||56.00||104.54|
|Outlet Culvert Top||153.30||101.13|
|D/S Water Surface Elev||153.30||95.38|
|D/S Water Surface Elev||159.30||94.91|
|D/S Water Surface Elev||195.30||94.26|
- 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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