Low Clearance Alert System for GPS

We were in WA north of the Columbia. Sign posted saying low clearance. We just pulled over & called WAdot. Very helpful people. An extra foot is adequate. Low clearance signs are 14 & under.

rjsurfer wrote:
Anything for an Android phone running Google Maps???

Some type of RV or truck data added to Google Maps would be great.

Ron W.

Low Clearances has a file that runs on Google Earth, but not to my knowledge Google Map

Anything for an Android phone running Google Maps???

Some type of RV or truck data added to Google Maps would be great.

Ron W.

rockhillmanor wrote:

interesting. Did you have to add that POI to the GPS or did it come with it?

Added, the very one the OP was asking about.

n7bsn wrote:

rockhillmanor wrote:
All that system does is use the highway departments info on overpasses etc. as a poi. You can get that info for free in RandMcNally truck maps./.....

Take it from someone that has compared the Rand truck atlas with the Low Clearance POI data base.

Rand is incomplete compared to the Low Clearance data base. Rand misses many (many) small side/county/city roads that long distance truckers never take.

I have the Low Clearance POI file on my GPS, it does work. What it does it alert you that you are within say 1/2 mile of the low clearance. What it doesn't tell you is if the low clearance is on the road you are on, or a near by road.

interesting. Did you have to add that POI to the GPS or did it come with it?

WyoTraveler wrote:
aitaonline has a web site listing low clearances. Free web site

Plus data-rate, plus access (assuming you are trying to to this live and not preplaning)

rockhillmanor wrote:
All that system does is use the highway departments info on overpasses etc. as a poi. You can get that info for free in RandMcNally truck maps./.....

Take it from someone that has compared the Rand truck atlas with the Low Clearance POI data base.

Rand is incomplete compared to the Low Clearance data base. Rand misses many (many) small side/county/city roads that long distance truckers never take.

I have the Low Clearance POI file on my GPS, it does work. What it does it alert you that you are within say 1/2 mile of the low clearance. What it doesn't tell you is if the low clearance is on the road you are on, or a near by road.

All that system does is use the highway departments info on overpasses etc. as a poi. You can get that info for free in RandMcNally truck maps.

I'm here to tell you that none of the marked bridges are correct. I lived in Chicago and every single truck/RV that sheared off the top of the vehicle on an overpass was 'well within' the clearance marked on the bridge and the warning sign on the road. The road was higher.

Streets are paved and repaved, and repaved which makes them higher which duh makes the clearance marked incorrect. AND many of those bridges, overpasses on many interstates are 'hundreds of years old'!!!

And they don't change the clearance painted on the bridge they just keep painting over it with fresh paint, and the highway department keeps repaving over and over again.....and your GPS just takes that hundred year old clearance dot number and tells you it's ok. :B

IMHO, JMHO, JMHO RV'ers are getting all wrapped up in electronics telling them clearances and blindly going into them if they are within inches of the RV clearance because an 'electronic' device said it was ok. :(

I don't do any overpass that is less than 2 feet of what my RV height is.

aitaonline has a web site listing low clearances. Free web site