A recent study focused on road safety, calculating the percentage of rough roads, annual miles driven, and fatal injuries across all 50 states.
Rhode Island had the roughest roads in the country, with 15.3% scoring above 220 on the International Roughness Index (IRI), which is a generally accepted measure of road quality in America. The top ten states with the roughest roads include:
Rhode Island: 15.3%
Massachusetts: 14.6%
California: 12.4%
New Jersey: 9.5%
Hawaii: 9.1%
New York: 8.9%
New Mexico: 8.2%
Maryland: 7.7%
Wisconsin: 6.6%
Louisiana: 6.3%