Preservation Projects

The Atomic Bomb Dome has remained in the condition it was left in after the bombing. There were no significant structural changes, but due to severe weathering by wind and rain, the possibility of collapse was feared, leading to a preservation project in fiscal year 1967 to preserve the Dome's postbombing condition. Three additional preservation projects have been conducted since.
Fundraising campaigns were conducted to raise the construction fees for both projects, gathering a large amount in donations. The remainder of the donation money was reserved in the Atomic Bomb Preservation Project Fund and used for the third and fourth preservation projects and preservation surveys.
Below is a summary of past construction work.

Preservation Projects
Preservation Projects	Period	Basic Aims	Construction Summary
1st	April to August 1967	Preserve the building in its existing state, including the parts that had caved in or fallen apart	Seal cracks on the walls Reinforce unstable parts with steel framework Raise walls, pull up girders, pile up collapsed bricks Apply anti-corrosion coating to the original steel frame and new reinforcements Waterproof storehouse roof, reinforce wall tops with mortar
2nd	October 1989 to March 1990	Prevent the further deterioration of concrete, bricks, and other materials as well as those which were added during the first preservation project	Repair deteriorating concrete Repair masonry joints Apply anti-corrosion coating to steel frame Replace corroded parts of the original steel frame Apply water repellant to all wall surfaces
3rd	October 2002 to March 2003	Prevent further deterioration of the structure caused by rain water	Rain damage prevention (wall tops, windowsills, interior walls inside the dome, former storehouse, and basement) Apply coating to steel reinforcements Preservation measures for the ceiling slabs of the former storehouse
4th	November 2015 to July 2016	Prevent further damage caused by earthquakes	Earthquake damage prevention (Adding reinforcement steels on 3walls)

Inquiries regarding this site

都市整備局　緑化推進部　公園整備課
Tel:082-504-2393/Fax：082-504-2391
E-mail:park@city.hiroshima.lg.jp

このページに関するお問合せ先

都市整備局緑化推進部公園整備課代表
〒730-8586
広島市中区国泰寺町一丁目6番34号
Tel：082-504-2393 Fax：082-504-2391

park-sei@city.hiroshima.lg.jp

Note Regarding Links

Please note some links on this page may navigate to our Japanese website.

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Hiroshima City Hall

1-6-34 Kokutaiji-machi, Naka-ku, Hiroshima City, Japan 730-8586/ General Inquiries 082-245-2111/Map

Hours of Operation
Monday-Friday from 8:30 am to 5:15 pm ( except the Ninoshima Branch Office: 8:00 to 4:45 pm )
Please visit the office by 5 pm (except the Ninoshima Branch Office: by 4:30 pm)
Offices will be closed on national holidays, August 6, and December 29-January 3.

Hiroshima City Information Hotline 082-504-0822 Hours: 8 am to 9 pm ( year round )

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up Hiroshima City Initiatives and Projects 广岛市的举措 히로시마시의 정책 Empreendimentos da cidade de Hiroshima Iniciativas de la ciudad de Hiroshima Pagsusumikap ng Lungsod ng Hiroshima Nỗ lực của Thành phố Hiroshima

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