3 ms·

Surely the weight increases, the displaced water needs to go somewhere right?

• brazzy 7y ago
  It (mostly) doesn't stay on the bridge.
  • trianglem 7y ago
    As in it overflows over the sides?
    • RandallBrown 7y ago
      It would overflow out the ends of the bridge
• mannykannot 7y ago
  1. When a boat enters a section of canal (i.e. between lock gates), the water level rises equally along that section, and consequently the weight of the boat is spread over the bed of that section. 2. ...Except that, if the level is maintained by water flowing over a weir, the weight of the boat is compensated for by a decrease in the water content of the canal. 3. Water level changes from launching a boat, or the lock operations to bring it into a section, propagate as waves, so do not take effect throughout the section immediately. 4. A moving boat creates waves in a canal. When the boat occupies a significant part of the canal's cross-section, water flowing around the boat's hull from stem to stern lowers the water level alongside the boat. I guess that it is possible for boats crossing an aqueduct to reduce the load on that aqueduct (while the bow wave may increase it.) https://www.youtube.com/watch?v=_5StcSKWTkA https://www.youtube.com/watch?v=_5StcSKWTkA