As of March 31, 2023, prestressed concrete was the most common material for bridge superstructures in Japan, with bridges adding up to approximately thousand cases. When accounted for the accumulated length, however, steel bridges outperformed them.
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MLIT (Japan). (March 31, 2025). Number of road bridges in Japan as of March 2023, by material used for superstructure (in 1,000s) [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 20, 2026, from /statistics/1228933/japan-bridge-number-by-material/
MLIT (Japan). "Number of road bridges in Japan as of March 2023, by material used for superstructure (in 1,000s)." Chart. March 31, 2025. ÌÇÐÄÆƽâ°æ. Accessed July 20, 2026. /statistics/1228933/japan-bridge-number-by-material/
MLIT (Japan). (2025). Number of road bridges in Japan as of March 2023, by material used for superstructure (in 1,000s). ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 20, 2026. /statistics/1228933/japan-bridge-number-by-material/
MLIT (Japan). "Number of Road Bridges in Japan as of March 2023, by Material Used for Superstructure (in 1,000s)." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 31 Mar 2025, /statistics/1228933/japan-bridge-number-by-material/
MLIT (Japan), Number of road bridges in Japan as of March 2023, by material used for superstructure (in 1,000s) ÌÇÐÄÆƽâ°æ, /statistics/1228933/japan-bridge-number-by-material/ (last visited July 20, 2026)
Number of road bridges in Japan as of March 2023, by material used for superstructure (in 1,000s) [Graph], MLIT (Japan), March 31, 2025. [Online]. Available: /statistics/1228933/japan-bridge-number-by-material/
