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| Introduction to port and
coast administration |
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| Introduction to coastal
measures |
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Promotion of disaster
prevention measures for urban area coasts (major
Heisei Era refurbishments) |
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| To protect coasts
in the urban areas where large numbers of citizens and substantial
property are concentrated from storm surge and other disasters,
the Ports and Harbours Bureau promotes full-scale refurbishment
of all coastal protection facilities suffering marked deterioration,
and implements facility upgrades such as the strengthening
of earthquake-proof structures. |
| In coastal areas of
cities with heavily concentrated populations and assets,
disasters such as the Typhoon Ise Bay in 1959 provided opportunities
to intensively build coastal protection facilities. Some
facilities are more than 40 years old, many have become
obsolete, and inadequate crest heights caused by subsidence
or similar problems and deterioration of facility functions
because of structural instability from scouring and other
actions can be noted. Each of these factors has increased
the need for investment for renovation of sluices and pumping
station. Consequently, in the future the bureau will urgently
and emphatically carry out full-scale improvements and earthquake-proof
strengthening of facilities that have deteriorated markedly,
and promote facilities upgrades such as automation of sluices
and in-land locks and intensive monitoring and control. |
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| Example of a dilapidated coast preservation facility |
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| (Ube Port Coast,
Yamaguchi Prefecture) |
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(Yokkaichi Port
Coast, Mie Prefecture) |
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| The bureau will take
advantage of the Hanshin-Awaji (Kobe) Earthquake to implement
earthquake-proofing and anti-liquefaction measures for coastal
protection facilities in urban areas. On coasts in urban
areas where industrial and commercial facilities or housing
are concentrated, the bureau will implement urban coast
upgrade projects to ensure safety, including consideration
of coastal protection facility earthquake resistance, and
create coasts that harmonize background land uses and urban
resident uses. |
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Urban Coast highly-advanced
project
(Osaka Port Coast, Osaka Prefecture) |
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| To ensure effective shore protection
in regions such as Japan's three major bays, where sea and
land traffic are heavily congested, the bureau will implement
works to upgrade coastal protection facility disaster prevention
functions, by converting facilities such as sluices and
in-land locks to remote-control operation. |
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Opening-and-closing
condition of land lockage by human power
[Example of a targeted highly advanced coast preservation facility
urgent disaster prevention functional] |
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