Brio 33683 - Double Suspension BridgeThe 33683 Double Suspension Bridge is the longest bridge in the BRIO World railway system measuring 11. 34cm. Drive above and below: When used on a flat surface, the bridge stands high enough for trains, boats and other vehicles to pass underneath it freely. The six wide integral bridge supports that stand under each bridge section offers great stability so that the bridge can handle even the most heavy handed of traffic. Build your bridge: The bridge