How to know bridge clearances on route?

Bill001 wrote:
Hi,

What (map?) resources do folks use to determine whether the bridges on one's route has adequate clearance?

Thanks,
Bill

Lowclearances.com has a database called Route-1 you can buy that you can install as a POI d.b. in many common GPS units, a number of common mapping apps, (including Google Earth) and various phone apps. For $75 you get their entire U.S. and Canadian d.b. with lifetime updates. The largest d.b. of its kind, so they claim, with nearly 6,000 low clearances listed. No, I don't work for 'em, but I'm a very interested potential customer looking at this when I get my new, taller, FW. :-)

Also, there are several "trucker" books and apps that do the same thing as well as RV-specific GPS units that have these built in to their d.b. From what I've read, Route-1 seems to have many more datapoints, though.

Lyle