Probably 3 to 10 times the weight you plan for it to carry.
Will the bridge be only for people? For cars? For Trains?
How long and how wide will it be? The longer and wider it is, the more people, cars, etc. that will fit on it.
The maximum weight that a balsa wood bridge can hold depends on its design, construction, and the quality of the materials used. Generally, balsa wood bridges can hold anywhere from a few pounds to several hundred pounds, depending on these factors.
The Golden Gate Bridge can hold up to 38,000 tons of weight.
No
It can not unless the bridge already has a lot of weight on it and the cat would put the bridge over the maximum amount of weight that the bridge can withstand.
From http://www.chiefmfg.com/productdetail.aspx?ProductID=10772 ... the rack will hold a maximum weight of 175 lbs.
The maximum weight capacity of this elevator is 2000 pounds.
The weight limit for a truck crossing the bridge is 18 metric tonnes.
The average weight is around 14tons
Bridges are able to hold so much weight because of the way they are built and the tension that holds them together
You want to find out how much weight your posicle bridge can hold before collpsing. So finding the weight of the bags of weights is very important to test your bridge. Then you will find out how much weight your posicle bridge can hold. ~be happy, life is good:)~
According to product specifications, this stand can hold up to 125 lbs.
The maximum weight capacity that the ceiling support beams can hold in this building is 10,000 pounds.