ae
JOHNSTON ATOLL
SCIENTIFIC
F&SNO.
TITLE
01017
Payload Storage Igloos
USER
STRUCTURE ‘FACILITY NO.
SANDIA
SCIENTIFIC STATION NO.
722 and 723
BOD
None
FoD
FUNDING
AGENCY
AEC
($000)
ENGR
PROC
CONST
TOTAL
PRE-GO
Prior Cost
5.8
7.8
29.4
43.0
TOTAL
5.8
7.8
29.4
43,0
FURN
COMPLETED
DESCRIPTION
The Payload Storage igloos (completed in 1966) aretwo 8-gage
corrugated steel arches. Each igloo is erected ona reinforced concrete slab
with thickened footings. Inside dimensions are 11 x 23 x 10-ft. high at the
crown of the arch. The igloos are spaced ]6-ft. apart and covered with coral
to a depth of approximately 3-ft. at the crown. A 10-ft. wide by 9-ft. high
steel blast door is provided at one end of each of the igloos for access. A 1-tft.
thick reinforced concrete portal wall supports the doors and also retains the
coral fill. The opposite end of the igloos is closed off by a 1-ft. thick reinforced concrete wall. A 30-ft. x 68-ft. x 6-in. thick concrete slab is located
on the north side of the igloos and in front of the blast doors.
Exterior and interior lighting is provided.
has also been installed.
A security protective alarm system
Besides being covered with coral, a 12-ft. high coral berm. approximately 100ft. long, has been constructed 35-ft. north of the igloos.
The igloos will be enclosed, after GO, by an 8-ft. total height security fence.
(See F&S No. 01015.)
DRAWINGS:
VOLI
91-723-S1 and S2
91-723-E1
91-723-W1
91-+-724-Cl
91-724-E]
1-20