<Table> <Tr> <Th_colspan="2"> First Transcontinental Railroad </Th> </Tr> <Tr> <Td_colspan="2"> The ceremony for the driving of the "Last Spike" at Promontory Summit, Utah, May 10, 1869 </Td> </Tr> <Tr> <Th_colspan="2"> Overview </Th> </Tr> <Tr> <Th> Locale </Th> <Td> United States </Td> </Tr> <Tr> <Th> Termini </Th> <Td> Omaha, Nebraska (Council Bluffs, Iowa) Oakland Long Wharf (San Francisco Bay) </Td> </Tr> <Tr> <Th_colspan="2"> Operation </Th> </Tr> <Tr> <Th> Opened </Th> <Td> May 10, 1869; 148 years ago (1869 - 05 - 10) </Td> </Tr> <Tr> <Th> Owner </Th> <Td> U.S. Government </Td> </Tr> <Tr> <Th> Operator (s) </Th> <Td> Central Pacific Union Pacific </Td> </Tr> <Tr> <Th_colspan="2"> Technical </Th> </Tr> <Tr> <Th> Line length </Th> <Td> 1,912 km (1,188 mi) </Td> </Tr> <Tr> <Th> Track gauge </Th> <Td> 1,435 mm (4 ft 8 ⁄ in) standard gauge </Td> </Tr> <Tr> <Td_colspan="2"> <Table> <Tr> <Th> Map of the line </Th> </Tr> <Tr> <Td> </Td> </Tr> </Table> </Td> </Tr> </Table> <Tr> <Th_colspan="2"> First Transcontinental Railroad </Th> </Tr> <Tr> <Td_colspan="2"> The ceremony for the driving of the "Last Spike" at Promontory Summit, Utah, May 10, 1869 </Td> </Tr>

Who made sure that transcontinental railroad would be built