# Bridges

Hokuriku Shinkansen Tsuruga Extension Project Vol.1 ~ Okura Yoza Bridge ~

The Shinkansen, which travels at a speed of 260km per hour, requires extremely high precision in its bridge piers. The allowable deflection is only a few millimeters. This is why engineers who aspire to be civil engineers think, "I want to work on the Shinkansen someday." Furthermore, the Okura Yoza Bridge had to be built on soft ground with a maximum pier's height of about 30m. This was one of the most difficult projects in the long history of Shinkansen construction.