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02-10-2020, 04:29 AM
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#61
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Montana Master
Join Date: Jan 2018
Location: Austin
Posts: 2,390
M.O.C. #21044
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...or if you have Google Earth pro I believe you can use it to do vertical measurements.
I have google earth pro and it would not let me measure vertical dimensions. Daingit!
__________________
MikenDebbie Aggie 77 in the sticks near Austin TX
2019 Chevy 3500 High Country DRW
2018 Montana 3921FB
Aussie Gus + Texas Heeler Jimmy
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02-10-2020, 07:19 AM
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#62
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Montana Master
Join Date: Oct 2014
Location: Hagerstown
Posts: 862
M.O.C. #16013
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??
Quote:
Originally Posted by Barzee
Most marked bridge heights in the US have a leeway of at least 6 inches, some states allow for 12 inches of leeway. You should measure the exact height of your unit to know exactly where you are.
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Given the number of bridges and overpasses I have gone under in my life time, it seems many many people have tested that theroy and failed. It would be nice if a county, state, local employee with direct knowledge of this would chime in. We know your out there but just don`t want to get involved, just do an anonymous post.
Don`t worry we won`t sue.
This guy tested your theroy and lost by only a couple of inches.
__________________
2018.5 3791 Rear Den Montana, on the lake no 3rd A/C, Mini Split, just do it
Electric Brakes ..... Disk Brakes, it`s the only way
F350 Ford Dually 4:10`s w/bags (payload 5595 lbs) Sumo Springs 63 gal aux tank
Reese Goosebox Mor/Ryde SRE 4000 X Factors Monroe shocks.... real smooth ride
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02-10-2020, 07:59 AM
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#63
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Montana Master
Join Date: Mar 2016
Location: Catoosa
Posts: 772
M.O.C. #18384
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I would think that finding a bridge that has less clearance than marked is extremely small, you’re probably going to get hit by lighting first. Since semi trailers are built to 13’6” you can bet that any bridge anywhere close to that height gets careful scrutiny. One thing to be very careful of when going under a bridge with low clearance is that you don’t run over any debris that could reduce your clearance.
__________________
2015 3100RL legacy...2005 Ford F-250 CC SB. Tows like a charm! 4/19 Updated to 2017 Chevy 3500 CC SB SRW -hope it tows as well as my F 250 did!
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02-10-2020, 07:59 AM
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#64
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New Member
Join Date: Feb 2019
Location: Waller
Posts: 5
M.O.C. #23459
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That bridge has been there many years. anyone going on the east side of Glacier has to either go under it or you can go around by a few miles. I have done both. if your coming from the east no problem. if you dont want to measure, go around.
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02-10-2020, 08:33 AM
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#65
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New Member
Join Date: Apr 2011
Location: Athens
Posts: 9
M.O.C. #11315
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We stayed at West Glacier KOA in 2018 and really enjoyed it. I recommend changing campgrounds. RVing can be stressful enough without adding these type of unknowns.
David Tidwell
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02-10-2020, 04:21 PM
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#66
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Established Member
Join Date: Oct 2017
Location: Woodburn
Posts: 27
M.O.C. #20698
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You should be able clear it . Most semi trailers are 13.6. Is your axles turned over ? Mine is 12.5 .
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02-10-2020, 07:41 PM
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#67
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Established Member
Join Date: Mar 2019
Location: Denver
Posts: 32
M.O.C. #23554
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Clearance 13 6
I went under that bridge in 2015. Had a 13 6 high Cardinal. It is arched and intimidating but if you stay in the middle of the arch there is plenty of room.
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02-10-2020, 08:44 PM
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#68
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Montana Master
Join Date: Sep 2019
Location: lake stevens
Posts: 504
M.O.C. #24938
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Quote:
Originally Posted by tidwellfarms
We stayed at West Glacier KOA in 2018 and really enjoyed it. I recommend changing campgrounds. RVing can be stressful enough without adding these type of unknowns.
David Tidwell
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We have stayed there before however it is already books all summer for 40'+ It is also a very expensive KOA, This new Park is walking distance to the village the river and short bike ride to the lake.
Location, Location, Location
Quote:
Originally Posted by birdphotos
That bridge has been there many years. anyone going on the east side of Glacier has to either go under it or you can go around by a few miles. I have done both. if your coming from the east no problem. if you dont want to measure, go around.
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That bridge only accesses the Highway to the Sun road which you would NEVER take and 5er/RV over you might be mistaken. The main Road used to go East/West is to the south. The only real commercial that goes under that bridge is for the small village on the other side of the bridge.
What I have done is I bought a Magnetic spring antenna, I will adhere a metal plate to the roof, I Cut the antenna coax/wire off the antenna base and cut the antenna to 1" above the A/C it is located near the front so my wife can look out the sunroof of the truck and see the antenna as I go under bridges, trees and other objects. Being magnetic I can quickly put it on and take off as needed.
Look driving around is an option however a very last option as I have full body paint and the roundabout way is 36 miles of which is 10 miles of washboard/potholed gravel road so it wold be a long 36 miles with potential for paint chips/damage.
My gut tells me I will be fine. I re-measured today with the new truck (2019 Ram 3500) and I got the height down to 13'4.75".
I have already booked the RV park and will get there one way or another
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02-11-2020, 05:42 AM
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#69
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Montana Fan
Join Date: Oct 2017
Location: Fulton
Posts: 456
M.O.C. #20688
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When we had IS added in September MORryde guys measured the Montana.
One on the roof with a 6 level one on the ground with a steel tape.
I had done the same when we bought the camper both times it measured 134
MORryde raised the back 2 so we are now level , made no difference on the front .
On the bridge concern, dont you think semis go under that bridge everyday to supply the area.
As stated earlier its not listed as a restricted road in the Truckers Atlas.
__________________
Wayne & Malinda
2018 Montana 3731FL
MORryde IS/DiscBrakes
2017 F450 DRW KR 4x4
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02-11-2020, 06:25 AM
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#70
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Established Member
Join Date: May 2013
Location: St Albans
Posts: 12
M.O.C. #13453
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Another Thought
We have 18 wheeler get stuck under bridges often here in Vermont. To free them up often times they take air out of the trailer tires. Then when on the other side they re inflate the tires. Could take 4 inches or so off the height of the trailer. You would have to have a way to re-inflate the tires once you cleared the bridge.
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Joe & Eddy
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02-11-2020, 07:28 AM
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#71
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Montana Master
Join Date: Oct 2014
Location: Hagerstown
Posts: 862
M.O.C. #16013
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??
Quote:
Originally Posted by Mikendebbie
This is a pic from the campgrounds website - there is a Montana in the pic! I would say things are looking up! You can do this and let us all know how it went. I have searched several other forums and find no other discussion of this bridge.
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Don`t see an Air Conditioner. This is the same unit we had before the new one. It was 12` something to the top of the A/C cause the back sloped down and this is where the A/C was. But if you looked else where and found nothing ( and there certainly would be some kind of warning) It`s just a close shave then, no pun intended, yes it was LOL LOL.
__________________
2018.5 3791 Rear Den Montana, on the lake no 3rd A/C, Mini Split, just do it
Electric Brakes ..... Disk Brakes, it`s the only way
F350 Ford Dually 4:10`s w/bags (payload 5595 lbs) Sumo Springs 63 gal aux tank
Reese Goosebox Mor/Ryde SRE 4000 X Factors Monroe shocks.... real smooth ride
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02-11-2020, 09:59 AM
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#72
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Montana Fan
Join Date: Feb 2020
Location: Hawkins - Tx
Posts: 142
M.O.C. #25774
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Look inside that Sundance window. Looks like a whole lotta mess inside.
__________________
Gunther, Sheri and Calvin
2020 Montana 3812 MS with a Reese Goosebox
2006 Dodge 3500 Dually, LB, 6 Sp, 5.9 Cummins with Flashpaq Super Chip Tuner
South Bend Flywheel and Clutch, Loadlifter 5000 Rear Air Bag Kit
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02-11-2020, 11:00 AM
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#73
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Montana Master
Join Date: Jan 2018
Location: Austin
Posts: 2,390
M.O.C. #21044
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I went thru this overpass in Fort Worth the first day we took possession of the unit from the dealership. This was before I knew to be aware of bridge clearances! I had no idea how high the Monte was. I have learned a lot on this forum!
__________________
MikenDebbie Aggie 77 in the sticks near Austin TX
2019 Chevy 3500 High Country DRW
2018 Montana 3921FB
Aussie Gus + Texas Heeler Jimmy
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02-11-2020, 11:07 AM
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#74
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Montana Master
Join Date: Sep 2019
Location: lake stevens
Posts: 504
M.O.C. #24938
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Quote:
Originally Posted by MidMOTraveler
On the bridge concern, dont you think semis go under that bridge everyday to supply the area.
As stated earlier its not listed as a restricted road in the Truckers Atlas.
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Hence the questionable concerns as there is really NO commercial traffic needs on the other side of that bridge, just giftshop, restaurant, 1-gas station, tour companies, post office and Forest Service, that is it for commercial access needs, none that require large Semis other then Fuel and those fuel trailers are low profile anyway..
I am likely just fine just a bit nerve-racking with 1 inch clearance a bridge even at slow speed can cause significant damage. Plan for the worst hope for the best.
I now have an early height warning system plan so should be OK.
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02-11-2020, 11:15 AM
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#75
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Montana Master
Join Date: Sep 2019
Location: lake stevens
Posts: 504
M.O.C. #24938
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Quote:
Originally Posted by Mikendebbie
I went thru this overpass in Fort Worth the first day we took possession of the unit from the dealership. This was before I knew to be aware of bridge clearances! I had no idea how high the Monte was. I have learned a lot on this forum!
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I would have not even known about or considered this bridge had I not read reviews of others planning to stay at this park last year who also had tall 5th Wheels that showed up not knowing and refused to go under and just turned around and left, That was my red flag moment with this RV park. I also called the park and they admitted they have had some that showed up and refused to try the bridge thus canceling the reservation last second. So the RV park is aware of the height challenge of this bridge also.
Quote:
Originally Posted by Pat2002
You should be able clear it . Most semi trailers are 13.6. Is your axles turned over ? Mine is 12.5 .
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On the 2019's the axels are below from the factory. I could flip however the Hill I go up at Home is so steep (12%) that the transition from the flat to the hill is so aggressive I end up with only 2-3" clearance from scraping the rear hitch receiver (and that is entering the hill at an angle to avoid scraping), in fact I was contemplating a 2" lift however that is now a non starter as I am finding there are too many 13'6" bridges out there.
Quote:
Originally Posted by Vermonters
We have 18 wheeler get stuck under bridges often here in Vermont. To free them up often times they take air out of the trailer tires. Then when on the other side they re inflate the tires. Could take 4 inches or so off the height of the trailer. You would have to have a way to re-inflate the tires once you cleared the bridge.
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I have Vi-air on board so I have the ability to air down , that is a last resort as I will try aired up first. I also have airbags I can deflate to drop the front a little as well...
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02-13-2020, 12:57 PM
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#76
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Seasoned Camper
Join Date: Oct 2019
Location: Colorado Springs
Posts: 72
M.O.C. #25159
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Here in the United States bridges are required to have the height shortened by 12". This is so trailers of similar heights to the bridge can make it under them. It takes in account the height of the road changing due to paving. This is according to the MUTCD. Manual of Uniform Traffic Control Devices. Nobody sue me!
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02-13-2020, 01:06 PM
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#77
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Montana Master
Join Date: Apr 2017
Location: 1000 oaks
Posts: 949
M.O.C. #19630
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Quote:
Originally Posted by Igoo65
Here in the United States bridges are required to have the height shortened by 12". This is so trailers of similar heights to the bridge can make it under them. It takes in account the height of the road changing due to paving. This is according to the MUTCD. Manual of Uniform Traffic Control Devices. Nobody sue me!
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Here?
https://safety.fhwa.dot.gov/geometri...lclearance.cfm
__________________
2011 2955RL Gen-Y Executive Kingpin
2022 GMC 2500HD Duramax/Alison
4X4 Crew Cab/Standard bed.
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02-13-2020, 01:13 PM
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#78
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Montana Master
Join Date: Sep 2019
Location: lake stevens
Posts: 504
M.O.C. #24938
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Quote:
Originally Posted by Igoo65
Here in the United States bridges are required to have the height shortened by 12". This is so trailers of similar heights to the bridge can make it under them. It takes in account the height of the road changing due to paving. This is according to the MUTCD. Manual of Uniform Traffic Control Devices. Nobody sue me!
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I think this may be the rule you are referring to which does not apply to non Highway or Interstate roads
"The adopted criteria provide vertical clearance values for the various highway functional classifications (Table 19). These criteria are set to provide at least a 1-foot differential between the maximum legal vehicle height and the roadway, with additional allowances for future resurfacing. These clearances apply to the entire roadway width (traveled way and shoulders). A formal design exception is required whenever these criteria are not met for the applicable functional classification".
This is not to say there is not any other clarifications. These standards went into play in 1967 so older low clearances would simply avoid this rule by applying for " A design exception is required if this standard is not met"
So unfortunately the rule is not hardened and is subjective and mostly applies to the Highways and Interstates for National Defense purposes.
This Bridge is primarily access for the small West Glacier village with very little commercial access needs other than the Forest and Parks Dept which those entities deal with low bridges all the time and I am sure all their vehicles are well under 13'6".
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02-14-2020, 05:18 AM
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#79
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Montana Master
Join Date: Jan 2018
Location: Austin
Posts: 2,390
M.O.C. #21044
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The West Glacier bridge was built in 1936.
I love this thread...learning a lot about low clearance bridges.
__________________
MikenDebbie Aggie 77 in the sticks near Austin TX
2019 Chevy 3500 High Country DRW
2018 Montana 3921FB
Aussie Gus + Texas Heeler Jimmy
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02-14-2020, 10:45 AM
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#80
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Montana Master
Join Date: Sep 2019
Location: lake stevens
Posts: 504
M.O.C. #24938
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Quote:
Originally Posted by Mikendebbie
The West Glacier bridge was built in 1936.
I love this thread...learning a lot about low clearance bridges.
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Nice find, thank you, that adds more perspective to the actual clearance statements whereas the new RV park told me specifically there is no grace on the height (not even an inch) they said they verified 3 times during the permit and building process of the RV park that the bridge was indeed 13'6". So the age of the Trestle/bridge suggest that it is not bound by any road compliance..
That may also explain why there is little commercial development on the other side of that bridge...
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