. American engineer and railroad journal . 8,700 lbs. on thetruck. The tender is carried on two four-wheeled trucks ; thetender axle journals are 4^ in. in diameter and 8 in. tank will hold 3,850 gallons of water. The engine is an excellent type of recent practice forheavy freight work. THE PALATINE BRIDGE AT ROME. In the improvements made by the Italian Governmentsince Rome became the capitil of the kingdom, it hasbeen necessary to replace some very ancient structuresby modern ones. Among these is the Palatine Bridgeacross the Tiber, which was lately completed, and whichis described
. American engineer and railroad journal . 8,700 lbs. on thetruck. The tender is carried on two four-wheeled trucks ; thetender axle journals are 4^ in. in diameter and 8 in. tank will hold 3,850 gallons of water. The engine is an excellent type of recent practice forheavy freight work. THE PALATINE BRIDGE AT ROME. In the improvements made by the Italian Governmentsince Rome became the capitil of the kingdom, it hasbeen necessary to replace some very ancient structuresby modern ones. Among these is the Palatine Bridgeacross the Tiber, which was lately completed, and whichis described in a very interesting paper read by the En- concerned with the plans. In 1575, and again in 1598, itwas necessary to rebuild the structure in part after heavyfloods in the Tiber, but from the last-named year until1854 it stood unharmed. In that year part of the ancientstructure fell, and was replaced by an iron suspensionbridge. In readjusting the streets of Rome, however, it wasfound best to remove the eld bridge and replace it the new structure being upon a slightly different site, in order to open up a more direct line of communication be- l tween the streets on the opposite sides of the Tib«r. The ii8 THE RAILROAD AND [March, 1892. change in site is shown in fig. i herewith, which is a mapgiving the position of the bridge. As shown in this map, the bridge crosses the river at anangle, although ils general direction is nearly at rightangles to the course of the stream below the bend, thebeginning of which is indicated. In order to present theleast possible resistance to the floods for which the Tiberis noted, and also to interfere as little as possible withboat navigation, the piers were placed at a considerableangle to the axis of the bridge. In order to keep the piers as nearly as possible at rightangles with the current, each was placed at a differentangle. The angles made by the axis of the bridge withthe axes of the several piers is : Right abutment, 41° 38
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
