Beam bridges are often only used for relatively short distances because, unlike truss bridges, they have no built in supports. The only supports are provided by piers. The farther apart its supports, the weaker a Beam bridge gets. As a result, Beam bridges rarely span more than 250 feet.
Russia Government type. Factbook > Countries > Russia > Government. Government type: semi-presidential federation. Definition: This entry gives the basic form of government. Definitions of the major governmental terms are as follows.
In 1991, after the Union of Soviet Socialist Republics' dissolution, Russia began transitioning to self rule as the Russian Federation. The new government adopted its constitution on Dec. 12, 1993. However, the exact distribution of authority among local leaders, regional leaders and the central government continues to evolve.