As of March 31, 2024, around 0.1 percent of road bridges in Japan were in a critical condition that required immediate action to restore structural integrity. Over ten years, beyond 723 thousand bridges received a close visual inspection.
Distribution of inspection results of road bridge conditions in Japan as of March 2024
2014 to 2023; as of the end of March of the respective year
Special properties
classification after close visual inspection into stages*
Supplementary notes
*Stage I: Good. No structural deficiency. Stage II: Preventive maintenance. Preventive maintenance is desirable, although no structural deficiency is found. Stage III: Early rehabilitation. The structure needs early rehabilitation, or it can become deficient. Stage IV: Emergency rehabilitation. The structure needs emergency rehabilitation because it is deficient or it will most likely become deficient.
Percentages may not total 100 due to rounding by the source.
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MLIT (Japan). (August 26, 2024). Distribution of inspection results of road bridge conditions in Japan as of March 2024 [Graph]. In Statista. Retrieved February 06, 2025, from https://www.statista.com/statistics/1231254/japan-share-road-bridge-conditions/?__sso_cookie_checker=failed
MLIT (Japan). "Distribution of inspection results of road bridge conditions in Japan as of March 2024." Chart. August 26, 2024. Statista. Accessed February 06, 2025. https://www.statista.com/statistics/1231254/japan-share-road-bridge-conditions/?__sso_cookie_checker=failed
MLIT (Japan). (2024). Distribution of inspection results of road bridge conditions in Japan as of March 2024. Statista. Statista Inc.. Accessed: February 06, 2025. https://www.statista.com/statistics/1231254/japan-share-road-bridge-conditions/?__sso_cookie_checker=failed
MLIT (Japan). "Distribution of Inspection Results of Road Bridge Conditions in Japan as of March 2024." Statista, Statista Inc., 26 Aug 2024, https://www.statista.com/statistics/1231254/japan-share-road-bridge-conditions/?__sso_cookie_checker=failed
MLIT (Japan), Distribution of inspection results of road bridge conditions in Japan as of March 2024 Statista, https://www.statista.com/statistics/1231254/japan-share-road-bridge-conditions/?__sso_cookie_checker=failed (last visited February 06, 2025)
Distribution of inspection results of road bridge conditions in Japan as of March 2024 [Graph], MLIT (Japan), August 26, 2024. [Online]. Available: https://www.statista.com/statistics/1231254/japan-share-road-bridge-conditions/?__sso_cookie_checker=failed