Our Interstate Highway System just celebrated its 60 anniversary. How concerned are you about the condition of our nation's highways, rail lines, bridges and dams?

The U.S. Interstate Highway System celebrated its 60th anniversary on June 29. Initially, the system of highways was called the Dwight D. Eisenhower National System of Interstate and Defense Highways, since President Dwight Eisenhower championed its formation. Many have called it the single greatest engineering feat ever attempted by mankind.

Every four years, the American Society of Civil Engineers issue a report card on America's infrastructure. The most recent report card grade was a D+. Their report called for an estimated investment of $3.6 trillion into our national infrastructure by 2020. Few expect that to happen.

Experts are very concerned our leaders are not leading the way to maintain and improve the condition of our highways, ports, rail and electrical grid. What do you think? We'd like to read your responses.