JOHNSTON ATOLL
F&SNO.

80004
USER

PROJECT SHARP NAIL

TITLE

Wash Down Pad
STRUCTURE. FACILITY NO.

DTC

SCIENTIFIC STATION NO.

None

800

None
FOD

FUNDING
AGENCY

DTC

($000)

ENGR

PROC

CONST

TOTAL

FURN

Cost included in F&S No. 80002

COMPLETED

DESCRIPTION A 100 x 100-ft. concrete pad was constructed adjacent to the
Mix~-Fill Building in the southwest corner of the island.

The pad has a minimum

thickness of 7 inches and is sloped 1 percent to one side to a drainage ditch which

is channeled to a rip-rap outfall in the ocean. Six power outlets for floodlights
are provided at the periphery of the pad. Power is supplied from the Mix- Fill
Building bus. One 3/4-inch hose bib for saltwater is located at the edge of the
pad; a second 3/4-inch bib provides freshwater. The water supply is piped
from the Mix-Fill Building area.
DRAWINGS:

91-950-Cl and C2

91-950-E3

80-3

JS 91-950-E100

VOL I

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