Speaking of the water bridge by the Contemporary, bioreconstruct posted several wonderful aerial photos that show it in good perspective.
In the upper right of this one:
In the center of this one:
The left bottom of this one:
And at the very bottom center of this one:
Besides what @marni1971 said about this being a different Disney from the one of the era that engineered this small marvel, the case is different in that the canal isn't frequently navigated like this one between Bay Lake and the Seven Seas Lagoon, which is navigated at least every 10 minutes by the water shuttle from the FW and WL to the MK.
Only realized on my last visit a water bridge at International Gateway.