Fish Passage Improvement site 20300195

Fish Passage Site 20300195

Coordinates (dec. deg.): 60.89625°, -149.06791°
Legal Description: S009N002E03
Region: South Central
Road Name: SEWARD HIGHWAY

Datum: NAD83
Quad Name / ITM: Seward D-6
AWC Stream #: 247-60-10240
Stream Name: Unnamed

Elevation:

Site Comments: UNAMED WATERSHED ADJACENT TO SEWARD HIGHWAY, UPSTREAM AREA IS A MARSH.

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-0195

site photos

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

Overall Fish Passage Rating: Gray

Tidal: Yes
Backwatered:

Step Pools:
Construction Year: 2019

Comments: Culvert information and photos submitted by Will Frost, ADFG, HB. Culvert replaced as part of the Seward Highway Phase I improvement project. Culvert replaced under fish habitat permit FH 17-II-0009. Culvert is tidally influenced.

Culvert Measurements

ID: 1

Structure Type: Circular pipe (Corrugated aluminum)

Fish Passage Rating: Gray

Length(ft):

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?:

Baffles Present:

Embedded?:

Outfall Height:

Outfall Type:

Constriction Ratio:

Culvert Gradient:

Max Slope:

Max Slope Length:

Comments: Culvert measurments taken from fish habitat permit and have not been verified. Culvert diameter 4 feet, culvert length 106 feet, culvert gradient 0.5%.