[Junior Guru]

Near my storage unit where I store our coach there is a two lane road with a bridge about 12' long over a small creek.  I just noticed a sign that says 11 ton weight limit.  Does anyone know if weight limit signs are per axle limit or total vehicle weight limit?  Or is it neither and a weight limit that the bridge "sees" such as both rear axles on bridge at the same time but not front axle as it would be off the bridge by the time the rear axles cross?   

A 300' bridge with weight limit sign seems like it would be total vehicle weight limit vs a small bridge that doesn't accompdate all axles.  

I have incidentally driven over the bridge a few times with no issue but now that I've noticed the sign I'm concerned a little.