Fish Passage Site 20703256

Coordinates (dec. deg.): 57.76839°, -152.53979°
Legal Description: S028S020W09
Region: Southwest
Road Name: Magazine Access Road

Datum: WGS84
Quad Name / ITM: Kodiak D-2
AWC Stream #: 259-21-10120-2011
Stream Name: Battery Creek Tributary


Site Comments: Culvert on the access road to two decommissioned artillery bunkers, and at the intersection with Gunnery Drive. UPD20KOD08, Site 20703257 is directly upstream from this culvert.

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 UPD21-MAR01

Project Supervisor: Kim Clark, ADFG — Anchorage, AK
Observers: Kim Clark, Michael Mazzacavallo

Overall Fish Passage Rating: Green

Tidal: No
Backwatered: No

Step Pools: No
Construction Year: 2019

Comments: Channel is ditched on both sides. Juvenile salmonids observed in channel and in pipe. At the inlet of the culvert is a confluence of 3 channels. Small culvert upstream of inlet for drainage of adjacent road and not a fish passage pipe.

Culvert Measurements

ID: 1 Structure Type: Circular pipe (Corrugated aluminum) Fish Passage Rating: Green
Length(ft): 47.2
Inlet Type: Projecting
Outlet Type: Projecting
Corrugation Depth(in.): 0.5
Corrugation Width(in.): 3.0
Condition Rating(1-5): 5
Approach Angle: 12.0
Sedimentation At Inlet: No
Inlet Substrate: Gravel
Outlet Substrate: Sand
Width(ft):7.0 7.1
Height(ft):5.3 4.95
Apron Length(ft):
Water Depth(ft): 0.31
Rustline Height(ft):
Substrate Depth(ft):1.7 2.0
Backwatered?: No
Baffles Present: No
Embedded?: Yes
Embedded Depth(ft): 1.7
Outfall Height: 0.0
Outfall Type: At Stream Grade
Constriction Ratio: 1.3
Culvert Gradient: 1.30%
Max Slope:
Max Slope Length:

Comments: Pipe gradient Top: 1.3%, Water Surface: 0.64%, Invert: 1.1% Culvert dimensins from engineering designs: 84" x 47"

Stream Measurements

Stream SubstratesUpstreamDownstream
Stream Slope(deg.):0.82
Stream Flow Stage:Low
Stream Width Type Distance From
Crossing (ft)
Width (ft)
Downstream ordinary high water 30.0 4.00
Downstream ordinary high water 55.0 3.70
Downstream ordinary high water 72.0 5.80


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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