clearance January 02, 2019, 11:44:42 pm How wide do you suppose the posted height applies? Could it be only the peak, or the sides of the lane? I don't want to bet my LabCab! But, couldn't help but wonder! Happy Trails and TailsWendy Harris 1 Likes
Re: clearance Reply #1 – January 03, 2019, 08:21:41 am Typically clearance is measured at the lowest point inside the driving lane. I would be very comfortable proceeding slowly down the center of that lane. Listen for the antenna; it’s a bit like a curb feeler up there.Rich‘03 MB in NC. 1 Likes
Re: clearance Reply #2 – January 03, 2019, 10:11:42 am With enough momentum stuff will self clearance.... 2 Likes
Re: clearance Reply #3 – January 03, 2019, 10:15:29 am "Typically clearance is measured at the lowest point inside the driving lane."----I think that the "lowest point inside the driving lane" is the same as what I have always used to calculate tunnel clearance, i.e., the posted height of the tunnel is measured from the curb side of the lane. This height can vary if the road surface has been repaved, but probably not by much. The apex of the tunnel is higher than the posted height, so I'd also "take my half out of the middle" when driving through it. A side note: I happened to be behind three large class C rental rigs (traveling in a pod, wallowing along the jammed park roads about 5' from each other's rear ends) going through the tunnel in Zion this past September. They did not seem to grasp the fact that traffic through the tunnel is controlled to allow one-way passage, and that straddling the center was the protocol; they all attempted to stay within the right lane, and at least one of the rigs actually clipped the tunnel edge. 3 Likes
Re: clearance Reply #4 – January 04, 2019, 12:20:42 am Is that one on the Blue Ridge Parkway? I've seen some overpasses listing both the middle and the edge heights. I'd hope the listed was the minimum, but wouldn't want to bet the bedroom on it. I found a NPS listing for the tunnels on the parkway here. . Tunnels should be open, even in the shutdown.
Re: clearance Reply #5 – January 04, 2019, 09:46:58 am This is not in the Blue Ridge Parkway. It's a one and a half railway bridge in the Philadelphia suburbs. All traffic has to use the center of the road when using.Daviddavehrrs@gmail.com (408) 206-8800On Thu, Jan 3, 2019, 9:23 PM joel wiley via LDOQuoteIs that one on the Blue Ridge Parkway? I've seen some overpasses listing both the middle and the edge heights. I'd hope the listed was the minimum, but wouldn't want to bet the bedroom on it. I found a NPS listing for the tunnels on the parkway[here.](Tunnel Heights - Blue Ridge Parkway (U.S. National Park Service)) . Tunnels should be open, even in the shutdown.Joel & dogs Dora, Sam & Zeke2013 31 IB Orwan / 2011 CRV Towd LWEROVE
Re: clearance Reply #6 – January 04, 2019, 11:45:07 am This "low bridge and tunnel" information is from Coach Net:https://member.coach-net.com/members/pdfs/LowClearanceBridgeInfo.pdf 3 Likes
Re: clearance Reply #7 – January 04, 2019, 08:28:49 pm That's a very useful resource, Joan. Thanks for posting it!
Re: clearance Reply #10 – January 05, 2019, 02:19:19 am Quote from: Lazy Bones - January 04, 2019, 09:26:21 pm"Glad it's useful! "Where was Texas? Last I saw it, south of Oklahoma, east of New Mexico, west of Louisiana... Lynne 2 Likes
Re: clearance Reply #11 – January 05, 2019, 10:53:31 am "Last I saw it, south of Oklahoma..."Thanks Lynne, I needed that! I was remembering back to a day when I was enroute from Fredericksburg to New Braunfels. Just before you reach the 'Circle' in town you encounter a very low railroad underpass. Low enough to ring the daylights out of my two antennae as I passed under the center of it. 1 Likes
Re: clearance Reply #12 – January 05, 2019, 04:28:56 pm Looks like there are no low bridges in Texas. Hmmmm guessing it's against the law.......
Re: clearance Reply #13 – January 05, 2019, 06:22:57 pm Quote from: colddog - January 05, 2019, 04:28:56 pmLooks like there are no low bridges in Texas. Hmmmm guessing it's against the law....... 'Cause everything's big in Texas.. Lynne 2 Likes
Re: clearance Reply #14 – January 06, 2019, 09:36:49 pm Just in case anyone would be following their GPS out of Needles to the 10, mine took me to a low, low overpass that only a small van could hardly go through. As I was turning around on a small piece of real estate another rv coming the other way was doing the same thing on the other side. I will have to add that the cars on both sides were very patient with us both. If it had been at night it would have been awful.
Re: clearance Reply #15 – January 06, 2019, 10:44:57 pm Ouch!Were you coming down US95 into and thru Needles? Going down US95 toward Vidal Jct or AZ 95 thru Lake Havasu City?
Re: clearance Reply #16 – January 07, 2019, 01:07:21 pm Maybe this underpass? Needles City Council to address underpass low clearance warning signs |...
Re: clearance Reply #17 – January 07, 2019, 01:23:16 pm Many years ago, in the parking structures at LAX, we hung PVC pipes, horizontally, in front the entrances that would hit the top of over-height vehicles, before entering. This usually convinced them to stop and reconsider.Before doing this, it was frequent occurrence to have a cabover camper, or similar, crash into the entrances.I meet some very unhappy people.Larry
Re: clearance Reply #18 – January 07, 2019, 02:19:44 pm I mentioned this in a previous thread awhile back but this thread is a good place for a reminder. Be careful of the railroad bridge at Highland Drive on the Cal Poly, SLO campus. It has been hit many times in year's past:Cal Poly’s quest: Stopping trucks from being decapitated by bridge | The Tribune
Re: clearance Reply #19 – January 07, 2019, 04:44:30 pm Quote from: HalfMile20 - January 06, 2019, 09:36:49 pmJust in case anyone would be following their GPS out of Needles to the 10, mine took me to a low, low overpass that only a small van could hardly go through. As I was turning around on a small piece of real estate another rv coming the other way was doing the same thing on the other side. I will have to add that the cars on both sides were very patient with us both. If it had been at night it would have been awful.I decided to see what you're talking about, by going to Google Street View, which shows a clearance height of 8' 6":Google Maps I think I'll avoid that part of Needles!
Re: clearance Reply #20 – January 07, 2019, 04:57:45 pm Seriously? OK, while I can understand someone getting caught encountering a low overpass on an unfamiliar road with no advance warning of a possible clearance problem (and, YMMV, but I would not rely on a GPS to determine this for me), I don't understand why anybody driving a large/high vehicle could miss the clearly posted in really big numbers height limit and just bash on through. To me, that's just flat stupid. Do drivers, including truckers, not know how high their rigs are? If they do, do they not associate the posted clearance limit with their rig's height? Do they simply think, "Hmmm, maybe that posted clearance limit is wrong; let's find out!" Nobody (that I know, anyway) is immune to doing a few careless moves with our rigs, and I'm certainly aware that oversize rigs of all sorts peel chunks off the roofs and sides of their vehicles in limited clearance bridges, roadways, underpasses, and overhangs pretty frequently, but I would hope that everyone on this board knows the height of his/her LD, pays close attention to the posted clearances, and doesn't "aerate" their rig! 2 Likes
Re: clearance Reply #21 – January 07, 2019, 09:20:08 pm Quote from: Jan Forseth - January 07, 2019, 04:44:30 pmI decided to see what you're talking about, by going to Google Street View, which shows a clearance height of 8' 6":Google Maps I think I'll avoid that part of Needles!I looked up JCT's post from the Mohave Daily News. They mentioned signage saying low overehead on K St. I ran street view from the north end of town and the only signs I found were on the underpass itself. The signs are well past the last turnoff, and the only turnaround is in the dirt on the East side. I'd think they would have a bit more signage where US95 turns right off K. Street. Still, something akin to Caveat Emptor does apply.
Re: clearance Reply #22 – January 07, 2019, 10:01:26 pm Came across this web site. Haven't used their product so can't recommend them or not:Low Clearance POI - GPS Data
Re: clearance Reply #24 – January 08, 2019, 12:13:27 pm Quote from: Joan - January 07, 2019, 04:57:45 pmDo drivers, including truckers, not know how high their rigs are? If they do, do they not associate the posted clearance limit with their rig's height? Andy once gave me a tip: Determine the height and weight of your rig (be sure to allow for all the stuff on the roof like the air conditioner). I rounded off to the next bigger foot and ton. Print the measurements on a label and put it on the visor. This way, when you come across a potential low clearance site, or a bridge with a weight limit, you can glance at the measurements and you will know if you should be going under/over or not. 1 Likes
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