Bridge weight limits
Okay, I THINK I know the answer to this.... but I want to check with you "experts." :wink:
There are many bridges I run across, say around K.C., that say "weight limit 50 tons." (or 60.... whatever.)
A loaded CMV weighs about 40 tons. These bridges are sometimes 3 lanes wide in one direction.
If THREE loaded CMV's are side by side on the bridge, that's 120 tons. How do they figure these LIMITS?
If, as I suspect, they are for each LANE, what about 3 CMV's in an "elephant train" (all in one lane) and all on the bridge at one time? Is it by "spans?"
Obviously, they don't fall down like the I-35W in MPLS!! So, how is the rating based? What is SAFE?
Not worried..... just wondering!
Hobo
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