BOSTON -- A New York truck driver got a hard lesson Monday when he hit a Storrow Drive bridge after trusting the data on his global positioning system.

Authorities say the popular GPS items can be misread if a driver doesn't know how to use them.

Most drivers know Storrow Drive is a truck-free zone because of its low bridges.

The signs are there, but more and more truckers are getting stuck, like the commercial box truck that got wedged under the railroad bridge just before the Boston University bridge.

The trucker is from the Bronx and blamed his GPS for the mistake.

"I use GPS but, you know, never get the truck route," the driver said.

"When the GPS tells you the fastest way to get from one point to another, it may not necessarily be telling you low clearances for the trucks," DCR Commissioner Rick Sullivan said.

Experts say that to be on the safe side, drivers should check the GPS for the option that allows programming for specific vehicle types. They say that should steer most motorists clear of any obstacles.