washington u.s. transportation secretary elaine chao say trump administration would unveil trillion infrastructure plan late year offer detail fund project chao say event department headquarter infrastructure initiative would include strategic target program investment value trillion 10 years proposal cover transportation infrastructure include energy water potentially broadband veterans hospitals well chao comment detail timetable administration plan unveil plan modernize u.s. roads bridge airports electrical grid water systems chao say administration plan offer incentives public-private partnerships rather simply fund improvements clear much new federal fund trump administration would propose say plan would aim speed process government project investors grow skeptical infrastructure plan win approval year dow jones transportation average rise election close record high march 4.3 percent month investors question soon trump pro-growth policies may implement early month trump propose 16.2 billion department transportation discretionary budget fiscal year 2018 reduction 13 percent budget would eliminate 175 million annual fund essential air service program support commercial air service rural airports end subsidies amtrak operate long-distance train service trump budget would also eliminate obama administration tiger grant program save 499 million program use fund variety transportation project include high-speed intracity rail highway construction transit bus systems trump unveil trillion infrastructure plan 2017 official