How much did the Akashi Kaikyo Bridge itself cost to build?
The Akashi Kaikyō Bridge crosses the Akashi Strait between Kobe and Awaji Island. Its 1,991-metre central span made it the world's longest suspension-bridge span when the bridge opened in 1998.
Final project cost
¥500 billion
Approximately $3.82 billion
Cost basis: 1998
The short answer
¥500 billion
The bridge's reported construction cost was ¥500 billion. Using the recorded 1998 annual-average exchange rate, Clueterra normalises that to approximately $3.82 billion for gameplay comparison.
Cost evidence
Basis of the published figure
What the number includes
Cost scope
This is the reported cost of constructing the bridge, not a current replacement value. The source amount in yen remains the primary answer; the dollar figure exists so projects from different countries can be compared on one game scale.
Project metrics
Key dimensions
- Total lengthHonshu-Shikoku Bridge Expressway Company
- 3,911 m
- Main spanHonshu-Shikoku Bridge Expressway Company
- 1,991 m
Project record
Timeline
Project context
About Akashi Kaiky? Bridge
Construction began in 1988 and the bridge opened in 1998. Its towers rise roughly 283 metres, while the full structure extends 3,911 metres across a busy and seismically active strait.
Reading the data
How to interpret the figure
Clueterra converts ¥500 billion with the 1998 annual-average reference rate of 130.7742 yen per US dollar. The result is a historical nominal-dollar comparison, not an inflation-adjusted present value.