The American Society of Civil Engineers (ASCE) gives a grade of D+ to infrastructure in the United States, reflecting both delayed maintenance and underinvestment. An estimated one out of every nine US bridges is structurally deficient, and 42% of urban roads are congested, costing the economy an estimated $101 billion a year in wasted time and fuel consumption.
美国公共基础设施投资已降至GDP的2%以下，为1992年联邦政府开始追踪该数据以来的最低水平。美国土木工程师协会（American Society of Civil Engineers，ASCE）给美国基础设施的评分是 D+，反映了维护拖延和投资不足两大问题。据估计，美国有九分之一的桥梁具有结构缺陷，42%的城市道路存在拥挤，每年浪费掉的时间和能源成本据估计高达1,010亿美元。有缺陷又维护不力的交通体系每年也会带来900亿美元的经济成本。