US Low Clearance POI

The author is very specific not to use this file as a 'warning' system, only as a 'Guide'. He also specifies "Nor do I claim that this file is/will be all inclusive." I'd consider this as "very good advice"!

RT

cool

re: how complete...

I have found both missing bridges AND bridges that are in the POI file but gone from the highway. Still... with that caveat -- I have yet to find a better collection of data for this.

Also... wrt to giving this to a technology averse person -- make sure they have common sense! If there is a sign that says "low bridge" but the GPS is silent... BELIEVE THE SIGN. Also, if the GPS is chirping at you but there are no signs - proceed with caution.

to polish this the new file off before the year's out. You'd be suprised how much time it takes to verify locations, etc. Time hasn't been easy to aquire for the past few months. I've had many e-mails inquiring if it's done yet. Quite frankly, this file will never actually be "done."

As has been noted in other posts, some spots are missing, some aren't quite where they should be, some aren't listed at all, some heights may be wrong.

Someone asked if it could be used in its current state as a general planning tool. Yes, but it may not be all that accurate.

Someone else asked if it's totally up to date and all inclusive. No. It never will be. Nor would I ever state that it would. Things change. Old stuff comes down, new stuff goes up. It's next to impossible for one person to keep track of all of it.

For those of you who've set the file up with the alarm feature turned on. If you get a warning, it's already too late. You're probably already in a situation where you can't turn around and re-route. The file should be used as a planning tool ONLY! And yes, It's possible that the underpass below the one you're on is the actual "low" underpass.

If you want to be totally sure that the route you're going to take is "Tall Vehicle" friendly, I highly reccommend that you check your route against the Motor Carriers Road Atlas published by Rand-McNally. BTW the new POI will have the most current MCRA listings included wherever possible. Even those are tough to decipher at times.

It turns out that I may have someone to help me with the file as well. Will have more on that later.

So with that, keep your eyes peeled for the new file.

Happy Holidays!

The best source that I'm aware of for low clearance is the truckers guide. Never depend upon any file for your high boat. It's likely that the file was never complete or accurate (that does not mean that it's not valuable or useful). Plus reading through the posts will reveal that part of the data was lost and there was no backup.

I think the low POI file would be great for truckers.

Driven1,

Good news about the pending update. I was validating an address that I had never been to through satellite images, etc. and it did take time so I can appreciate your effort. In my case the location was on the back of the property which caused the GPS to route across other buildings. With a street entrance location the routing would have been on normal streets.

Has this file been updated yet? If so, where is it located so I can download? I am interested in using it as a planning tool for planning a trip with my 13ft high 5th wheel.

Thanks

Has this file been fixed?

I posted a comment on tunnels, propane, and other road height restrictions. I hadn't searched for bridges and overpasses so I missed this information. As RV'ers this is a constant concern for us.
Regards
Bill and Carole

Hi
Is present file the revised file or not? After reading all the posts I am thoroughly confused.
Thanks
Bill

So do I. I confused too.

Me to. Is the file on the main page the new updated one?

I just downloaded this file and installed it on my Nuvi 660. I got an error message that stated there was a formatting error on line 13, all data after that line will be ignored. I checked the file and found a lot of formatting errors involving quote marks ("). A lot of the files had a single quote mark (") after the inches number and needed a double quote mark there (""). Others had a double quote mark followed by a comma ("",) but needed a triple quote mark followed by a comma (""",). Both of these errors cause errors in the way the file is loaded and displayed. The double quote marks just insert a quote mark in the displayed text but are otherwise ignored.

I have corrected this particular error and can upload the corrected file if you like.

I cleaned the (") out of the file. I loaded it onto my nuvi 750 via poi loader manually, no errors found. As always, if you have update please don't hesitate to email me.

I was doing a search and haven't found anything so far... Has anyone put together a POI file for steep grades (>6%) and runaway truck ramps? Again, not as a warning, but for trip planning purposes.

You like to visit runaway truck ramps during your trips? LOL LOL

I never saw that when I wrote it You know what I was thinking... If there's a runaway ramp, it's a good indicator that's a long grade; whatever goes up has to come down, you know?

Are you interested only in the down grades or are the long, slow upgrades of interest as well?

As the same hill would qualify for both depending on direction of travel would you put a POI at each end?

Is this file correct? Can we download it ?

in Zanesville,Ohio.

Invalid format for line 312. This is the added line. I open the file in Excel and saved it as .CSV and now it is happy.

FYI

JUst try first.

There is a missing apostrophe in the update:

-82.014335,39.941636,"9' 7"","Linden Ave,Zanesville OH "

should be

-82.014335,39.941636,"9' 7""","Linden Ave,Zanesville OH "

This train overpass is 13'2" on the signage.

1149 Oakwood Blvd, Dearborn, MI 48124, USA
street address: 1149 Oakwood Blvd
ZIP/postal code: 48124
city: Dearborn
state/province: MI
country: USA
latitude, longitude: 42.3051983, -83.2422205

42.3051983 -83.2422205

N42° 18.3119', W083° 14.5332'

(precision: address)

The file has been updated, thanks onestep.

Here is another one I just remembered. It is a great old stone train viaduct and is extremely narrow. http://www.aadl.org/node/1292

8235 Island Lake Rd, Dexter, MI 48130, USA
street address: 8235 Island Lake Rd
ZIP/postal code: 48130
city: Dexter
state/province: MI
country: USA
latitude, longitude: 42.339654, -83.8921078

42.339654 -83.8921078

N42° 20.3792', W083° 53.5265'

the location is Ma worcester west boylston st & #2 brooks st clearance is 11'0

Has the low clearance height for this poi been established, I did not see it when I scanned this thread.

I have a few 14'+ that I have not contributed as of yet see as I do not know if people are concerned with anything higher than that.

edited for: miss spelling of height.

my friend is a truck driver and was waiting for this

13'6" is the national standard. Anything less is appreciated for the list.

Low Clearances in N.Y. State are (Usually) off by appx 1 ft..
i.e.. If you see a low bridge marked at 12'-4", It is (probably) or actually 13'4".

2 low clearances NOT listed

1st is:
13'-5" R.R. Bridge on E. 93rd. 1 block east of S. Cottage ave.
located at appx 901 e 93rd st. (-87.60314 / 41.72570)
Chicago, Ill. 60619

2nd is:

13'-4" R.R. Bridge on 33rd Between Damen & Archer

located at appx. 1913 W. 33rd.
(-87.67332 / 41.83405)
Chicago, Il. 60608

Hope this helps,
Barry Gundlach

Low Clearance 2 Alert Sound

http://www.poi-factory.com/node/23066

Bob are any of those L.C. alerts someone yelling "Duck!"?

updated file posted, contributer thanked

Error on line 316 when trying to load CSV version using POI Loader.

fixed I think! LOL

love your posts and all of your hard work, is there an email i can contact you on? i have a few questions regarding something I'm developing, i think you would possibly have the right answers I'm searching for...
THANKS!!
loki890

Answered

I was researching Gas Stations, when I accidently discovered a low clearance bridge that I could not locate in the low clearance file. I do not know how low it is, but here is the information:

1066 Quinnipiac Ave, New Haven, CT 06513

-72.87718,41.31611

Curt

I added and will update soon. If you get the height let me know.

This has been added, If anyone is in the area, an exact height would be appreciated. For now its listed as a low bridge.

1066 Quinnipiac Ave, New Haven, CT 06513

-72.87718,41.31611

Also remove a duplicate in Groton CT. Thank you Curt!

Always looking for anything that will make the POI files more accurate and usable.

Curt

I am an Over The Road truck driver using MS Streets and Trips and the POIFactory as been awesome, i use the logitudes and latitudes and import them in to it, and I use my laptop for my logbook, gps, and email my paperwork to get paid. Here is a web page (no logitude and latitude info tho) that i use for checking my routes for low clearences along with the Rand McNally Motor Carriers Road Atlas and restricted routes for us OTR Drivers. Maybe it will be helpful or not, thought I would share something since I have used this site so much now...

http://www.aitaonline.com/Info/Road/Low_Clearances.html

Otherwise here are some in Indiana I have gotten the log. and lats. for:

Name, Latitude, Longitude, Location, Height, Referenced From

IN 1, 39.64661, -85.13554, Connersville-0.47 mi. North of IN 44, 11'2", Motor Carriers' Road Atlas '07

IN 17, 41.33864, -86.31031, Plymouth-1.7 mi. South of US 30, 11'0", Motor Carriers' Road Atlas '07

IN 43 NB, 39.08372, -86.75634, Solsberry-4.13 mi. North of IN 54, 11'4", Motor Carriers' Road Atlas '07

IN 43 SB, 39.08365, -86.75652, Solsberry-4.13 mi. North of IN 54, 11'3", Motor Carriers' Road Atlas '07

thx Patrick

Yes I have used that site to help verify some of the locations. Thank you for your input, locations have been added.

-83.450405 41.809104
13'3" N.B. Right hand lane
i-75 & luna pier road

-76.254054, 40.043850
10'6" stone underpass single lane narrow
Greenfield Rd.

sites added, thank you for your input.

I found a new area with low wires. My CB antenna hit them and it is around 13' high.

The wires are on Green street between Rose Ave and Summit street.

Rose loc.
Rose Ave & Green St, New Haven, IN 46774, USA
street address: Rose Ave & Green St
ZIP/postal code: 46774
city: New Haven
district: Allen
state/province: IN
country: USA
latitude, longitude: 41.077693, -85.011143

41.077693 -85.011143

N41° 4.6616', W085° 0.6686'

(precision: intersection)

Summit street loc.
Green St & Summit St, New Haven, IN 46774, USA
street address: Green St & Summit St
ZIP/postal code: 46774
city: New Haven
district: Allen
state/province: IN
country: USA
latitude, longitude: 41.073096, -85.011061

41.073096 -85.011061

N41° 4.3858', W085° 0.6637'

(precision: intersection)

thank you for the input, file has been updated. Low hanging wires are traditionally not included in this file, but if you feel its a true low clearance hazard it will be added.