Fish Passage Improvement site 20303514

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

Elevation:

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.

Survey UPDATE-ALB02

site photos

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

Overall Fish Passage Rating: Black

Tidal: No
Backwatered:

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:

	Inlet	Outlet
Width(ft):
Height(ft):
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%.