Reserved powers are those powers reserved for not reserved for- but  granted to the states. The definition of reserved powers: All  powers not expressed in the Constitution â¦are granted to the states  and called reserved powers.
While the vast majority of Interstate highways have no tolls, approximately 2,900 miles of Interstates are tolled in 21 states. These tolled facilities range in length from 500-mile New York State Thruway to tolled sections of I-95 in Delaware and Maryland.
The History of Interstate Highways in California. The list of Californiaâs first sections of interstate is quite impressive. California already had more than half a dozen routes by 1947, totaling 1,938 miles, including I-5, I-8, I-10, I-15, US 40, I-80, I-505, and I-580.