Bridge Formula Math Check

with 140 gross the truck weighs 18,072 and the trailer 25and change. That would put me right around 43000 so i'm guessing around 97 like you said. But thats in the 12' span. So you think the most i'd be able to haul until i get the drop axle would be about 82-85ish? How much would a 4th drop axle add? Not much with the bridge formula right due to the length and span? Thanks for your help by the way

 

And i heard Ohio only allows 60,000 max with my setup, is that true?

 

With your six axles you have now, I see permited 20,000 maybe a little more depending on state, 40,000-45,000 on your tandem and then 60,000 on the trailer triple. That would be 77,000 to 82,000 roughly depending how much is allowed on steer and tandems. The drop axle would bring the tandems up to a triple at 60,000 lbs which would gross at 140,000 with a net of 97,000.

 

Thanks i feel like no matter how many formulas i run and how much math i do i'll never figure this out. I'll just keep everything under 80 to be safe until i get a ticket.

 

You give me a headache with all those numbers. Feel like I'm back in algebra class and the teacher is speaking greek.

 

We bid a job to haul and stockpile near 300 loads of 12" pipe to Ross, ND for a line that will tie in to the Alliance pipeline near the ND Manitoba border. Plains is building a gas plant just a couple miles out of Ross that should be completed for early 2013.

 

The max in ND is 105,500 lbs. (For divisible loads of course).

http://www.nd.gov/ndhp/sites/nd.gov.ndhp/files/docs/ndhp921.pdf

 

NORTH DAKOTA WEIGHT LIMITATIONS CHART
NORTH DAKOTA HIGHWAY PATROL. Computed to nearest foot by the weightformula in Section 39-12-05 and Section 39-12-05.3 of the .... Note: On highways other than the Interstate System, only the exterior bridge measurement shall be ...
www.nd.gov/ndhp/sites/nd.gov.ndhp/f...ndhp/sites/nd.gov.ndhp/files/docs/ndhp921.pdf

BRIDGE FORMULA WEIGHTS
tandem-axle weight limits supersede the Bridge Formula limits for all ... "N AB »'"' '*~ \ ND /' ... Bridge Formula weight limit on axles not more than 40 inches ...
dps.alabama.gov/Documents/Documents/MCSU-InterstateBridgeLawWeights.pdfdps.alabama.gov/Documents/Documents/MCSU-InterstateBridgeLawWeights.pdf

North Dakota Strategic Freight Analysis North Dakota Department of ...
Aug 24, 2005 ... NORTH DAKOTA TRUCK SIZE AND WEIGHT REGULATIONS ............................. 2. Bridge Formula and State Maximum Gross Vehicle Weight .
www.ugpti.org/conference/pdf/NDReport.pdf

Federal Bridge Laws
N = the number of axles being considered. ... However, the single-axle weight limit replaces the Bridge Formula weight limit on .... North Dakota (701) 328-2621 ...
www.ntda.org/LinkClick.aspx?filetic...kClick.aspx?fileticket=NiMFqXy27gw=&tabid=115

Bridge Formula Weights Calculator - FHWA Freight Management ...
The Bridge Formula Weights Calculator provides a convenient way to determine the maximum ... N = the number of axles in the group under consideration.
www.ops.fhwa.dot.gov/freight/sw/brdgcalc/calc_page.htm

Road Weight and Size limitations: By State
TRUCK SIZE AND WEIGHT, ROUTE DESIGNATIONS -- LENGTH , WIDTH AND ... 43200, 38800, 44200, Reference Bridge Law Formula, 80000, Will not Permit, n/a .... North Dakota, 53-0, 38200, 43500, 43900, 43600, 42400, 40800, 43900 ...
www.cargoagents.net/resources/state.../resources/stateroadweightsizelimitations.htm

I. Overdimensional Vehicles - City of Fargo
Axle weights may also be reduced by the bridge load limitations map. ... formula in Section 39-12-05 and Section 39-12-05.3 of the North Dakota Century Code.
www.cityoffargo.com/CityInfo/Depart...VehiclePolicyManual/IOverdimensionalVehicles/

Annual and Seasonal Permit Chart
weight chart or federal bridge formula and with MN tire law, M.S. 169.823. Only on routes: TH175 Hallock to North Dakota border, TH11 Donaldson to North ...
www.dot.state.mn.us/cvo/oversize/an...us/cvo/oversize/annualseasonalpermitchart.pdf

Truck Costing Model for Transportation Managers (MPC-03-152)
North Dakota highways and interstates use Bridge Formula B to determine the allowable gross weight on bridges. State highways and Interstates use the same ...
www.mountain-plains.org/pubs/pdf/MPC03-152.pdf