> edd1974: > I once went through blackwall tunnell truck was 2 inch less than height tunnel was marked as.but never again.had lots stupid yellow pole things hanging down in the tunnel . Got through ok but was a bit neverey in case somebody’s measuments weren’t fully accurate
It is just over 4m going North but the signs etc… are set below that…
Those in the know with 4m trailers have been going through for many years, bit tight on the bends but do-able.
But it’s a few years since I’ve been through
Depends. If I am in rigid that allows me to reduce front and lower suspension in my cab sure.
They lower a LOT. like 6-8 inches I think.
That’s mainly only the ones that have demountable bodies so have much better suspension controls though.
If I am in an artic. Maybe not, maybe my logic is retarded here but I also assumed if you lowered your unit then the ass would rise up a bit.
Maybe, you can get out and lower the rear trailer suspension… But that is hassle and I am pretty sure a lot of them pop back into ride height when you move forward.
My truck is marked 14, 6 there is a bridge on the A470 near Carno at 14ft.6inch.After going on a diversion to my destination the other side. The farmer told me i can fit a truck under the bridge. He has his own truck and showed me. I believed him and went under it no problem
TruckerGuy:
If my truck was posted as 13’ and the bridge said 13’, I would NOT like to try and get under it.
I have a nice 5m tape measure. I know how high my truck is. I know how high it is with the air dropped. When we got a different batch of trailers in I checked a couple, makes it more relaxing to actually know. If anything goes wrong itll be because the bridge is wrongly marked. Bridges Ill nearly always take on trust. I have measured one, unmarked on a back lane, because it looked wrong. It was OK though.
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A bridge UK or France marked at same ht as the vehicle? No problem.
In Italy however the bridges are marked with their actual ht…take care! No room for error.
If tight take it slow: suspension can raise a fair bit on the bounce.
.
I have been under a bridge that was marked at about 20cm less than the actual trailer height, again a very minor road. Tape measure sucked it`s breath in and tutted… anyway drop air unit and trl, stop/start at less than walking pace? No problem. Saved about 30km and a good hours drive.
Makes the day less boring.
know someone that used to a regular drop into an underground loading area never an issue. They then decided to do some repair work and fit a sprinkler system. took several months and was a real pain as he guy had to handball every thing off and take it to the dock with a pump truck.
One night he turned up and the bod on the gate said oh good news the loading bay is finished you can drive down there tonight. when he got down there he heard ■■■■, ■■■■, ■■■■ looked in his mirror and saw water pouring everywhere stoped and he had taken out the sprinklers with the top of th trailer.
Turns out that no one had thought about changing the height markings as the sprinkers were hanging down from the celing. However the guy spent 2 months on suspenstion with all the associated stress and worry. point of the story is dont risk it.
adam277:
Depends. If I am in rigid that allows me to reduce front and lower suspension in my cab sure.
They lower a LOT. like 6-8 inches I think.
That’s mainly only the ones that have demountable bodies so have much better suspension controls though.
If I am in an artic. Maybe not, maybe my logic is retarded here but I also assumed if you lowered your unit then the ■■■ would rise up a bit.
Maybe, you can get out and lower the rear trailer suspension… But that is hassle and I am pretty sure a lot of them pop back into ride height when you move forward.
Most trailers should reset ride height when you go above 15-20mph. The handle just pops back out
Terry T:
So how high has anyone took under the hangar lane gyratory ?
13.6
Pretty sure everything except DDs are ok…
I’ve gone under in a DPD 16 footer. Wouldn’t fancy trying anything higher. And certainly not in a Scania with the lift axle up. There really should be signs inside Scania explaining how much higher they go
Terry T:
So how high has anyone took under the hangar lane gyratory ?
13.6
Pretty sure everything except DDs are ok…
I’ve gone under in a DPD 16 footer. Wouldn’t fancy trying anything higher. And certainly not in a Scania with the lift axle up. There really should be signs inside Scania explaining how much higher they go
That bridge is marked 16ft if i remember correctly
Braver than me
It is indeed marked at 16 feet - which means it has been measured to be at least 16’ 3". It is also marked at 4.9 metres, which means it has been measured to be at least 4.98 metres (or 16’ 4" in old money).
Roymondo:
It is indeed marked at 16 feet - which means it has been measured to be at least 16’ 3". It is also marked at 4.9 metres, which means it has been measured to be at least 4.98 metres (or 16’ 4" in old money).
Sent from my VOG-L09 using Tapatalk
Fair enough if you trust the council to measure correctly
Terry T:
So how high has anyone took under the hangar lane gyratory ?
13.6
Pretty sure everything except DDs are ok…
I’ve gone under in a DPD 16 footer. Wouldn’t fancy trying anything higher. And certainly not in a Scania with the lift axle up. There really should be signs inside Scania explaining how much higher they go
Valid point.
Many trailers are marked “Ht XXm Based on a1250mm Fifth Wheel” or similar.
How many know how high their fifth wheels are?
Use a tape measure, only takes a minute.
No need to get greasy either, pick up trailer, stand along side and measure to base of bodywork if that is level with rubbing plate. You`ll get the idea.
Until recently we could take 16’2" DDs along the A3 at the Hook underpass but they have now put a 16’0" sign on it, though there has been no alteration to the road itself. This was something to do with the leeway that was previously not applied. The really bad thing is that there are no warnings before the underpass, in either direction, and you cannot get off and go back on again, due to the road layout. My up-to-date TomTom still does not note it as a 16’0" bridge despite my filling in a couple of their forms advising them. A copper I spoke to recently said that it was a bit of a grey area because of the lack of warning signs so it will probably have to be tested in court if a driver does get spotted. We’ve been told that because we are aware of the height sign ignorance is not an excuse. The alternative, past Chessington, is only about a mile longer and is more scenic anyway but would be interesting to see how long it takes for locals to get fed up with us trundling past their nice houses.
I have always carried a tape measure but now with the technology I can measure a trailer, pallet, cooker, fridge, beer mat or my leg using an iPhone, its an accurate bit of kit and you can save the measurement.
