Farmers depend on cheap and flexible labor to pick fragile crops like oranges, peaches, blueberries and more. Phillippe Diederich/Getty Images hide caption

itoggle caption Phillippe Diederich/Getty Images

State legislator John Martin advises people in northern Maine to drive down the middle of the road at night so they have a little more time to react to moose crossings. Carl D. Walsh For NPR hide caption

itoggle caption Carl D. Walsh For NPR

Ray McNair rests under I-95 in Overtown, a historic black neighborhood in Miami that was nearly wiped out during the construction of the interstate. Tom Ervin For NPR hide caption

itoggle caption Tom Ervin For NPR

Some call the Port of Savannah "The Quiet Giant."  About 80 percent of the freight unloaded at the Port will travel on I-95 for at least some part of the journey to retail stores across the country. Courtesy Port of Savannah hide caption

itoggle caption Courtesy Port of Savannah

A stretch of I-95 near the Newark Airport in New Jersey. Timothy Bell For NPR hide caption

itoggle caption Timothy Bell For NPR