State Information

Interstate Highway System 50th Anniversary

• U.S. Interstate Highway System News Release: "U.S. Interstate System turns 50 years old, remains nation's most critical transportation link, despite growing traffic congestion, which is likely to get worse unless......" (June 29, 2006)
• The Interstate Highway System: Saving Lives, Time and Money - A report on the condition, impact, use and future needs of the nation's Interstate Highway System (June 2006) For information about your state Interstate Highway System, please click on the map below.