The Dongting Lake Bridge
is a bridge with cable-stayed bridge
section over Dongting Lake
in northeastern Hunan
. The bridge was completed in 2002
at a cost of $920 million. Cable-stayed section consists of three tower supporting a center spans of 310 m each and two identical side spans of 130 m each.
The Dongting Lake bridge is one of a handful of "next generation" bridges, world-wide, and includes cable dampers that use magnetorheological fluid which have the capability to change viscosity in response to an electromagnetic field. The bridge includes four lanes of traffic—two lanes in each direction.