Report on America's Infrastructure

摘要

Every four years,the American Society of Civil Engineers (ASCE) releases its report card on Americas infrastructure which examines current conditions and needs,assigns grades and makes recommendations to raise them.An assessment of the nations 16 major infrastructure categories,the report card is a useful benchmark to track the progress of US infrastructure and serves as a periodic reminder to everyone just how important infrastructure is to the nation.The 16 categories are aviation,bridges,dams,drinking water,energy,hazardous waste,inland waterways,levees,ports,public parks,rail,roads,schools,solid waste,transit,and waste water.