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.
According to the 1991 amendment to the 1978 Russian Constitution, the President of Russia was the head of the executive branch and headed the Council of Ministers of Russia. According to the current 1993 Constitution of Russia, the President is not a part of the Government of Russia, which exercises executive power. But, the President does appoint the Prime Minister.