The state of the nation’s roads, bridges, water systems and other fixed assets remains poor, according to the American Society of Civil Engineers new infrastructure report card, which shows an overall grade of D+, the same as in ASCE’s last rating, in 2013.

Rail scored the highest grade among infrastructure categories, with a B, thanks to private-sector railroads’ strong capital investment, Greg DiLoreto, chair of ASCE’s committee on America’s infrastructure, said at a March 9 Washington, D.C., event to release the report.