@TASIP, totally agree, most bridge collapses are caused by the bridge itself not being able to support it's own weight. If you were to compare the actual weight of a bride to the things on it you would be surprised at the ratios.
It'd be nice if you could qeue in things and turn off the animation so that the training happens instantly... waiting around for a hour or so simply clicking and watching is kind of boring.
Casual Collective is down for the moment. Please hold on. It should be back up soon. Some scheduled maintenance is taking place on all the games. Bug issues are being fixed along with the Minions maps.