Fish Passage Site 20303514

Coordinates (dec. deg.): 60.97427°, -149.09608°
Legal Description: S010N002E09
Region: South Central
Road Name: Arlberg Avenue

Datum: NAD83
Quad Name / ITM: Seward D-6
AWC Stream #: 247-60-10250-2018-3130
Stream Name: Unnamed


Site Comments: Site on new extention of Arlberg Ave. Stream has confluence with a slough about 70 feet below culvert outlet. 20303515 is just up the road and is a large pipe arch..

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.


Project Supervisor: Gillian O'Doherty, ADFG
Observers: William Frost

Overall Fish Passage Rating: Black

Tidal: No

Step Pools:
Construction Year: 2016

Comments: New site on the Arlberg Avenue extension

Culvert Measurements

ID: 1 Structure Type: Box culvert (Structural aluminum plate) Fish Passage Rating: Black
Length(ft): 94.5
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.):
Corrugation Width(in.):
Condition Rating(1-5): 5
Approach Angle:
Sedimentation At Inlet:
Inlet Substrate:
Outlet Substrate:
Apron Length(ft):
Water Depth(ft):
Rustline Height(ft):
Substrate Depth(ft):
Backwatered?: No
Baffles Present:
Embedded?: Yes
Outfall Height:
Outfall Type: At Stream Grade
Constriction Ratio:
Culvert Gradient: 3.70%
Max Slope:
Max Slope Length:

Comments: All measurements are taken from site plans and permits and have not been verified by project staff. Culvert was to be embedded to 20%. Culvert width 13.1 ft. Culvert height 8.25 ft, to bottom of culvert does not include substrate depth.. Culvert length 94.5 ft. Culvert slope 3.7%.

Stream Measurements

Stream SubstratesUpstreamDownstream
Stream Slope(deg.):3.16
Stream Flow Stage:

No stream width data available.


No elevation data available.

Fish Sampling Efforts

No fish sampling occurred during this survey.

Fish Observations

No fish observations occurred during this survey.

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