The cantrip Shape Water can freeze a 5' by 5' by 5' cube of water. The water unfreezes in 1 hour.
I've often read or hear that this can be used to make an ice bridge across water, by continuously freezing 5' of water.
However, the spell has stipulation:
If you cast this spell multiple times, you can have no more than two of its non-instantaneous effects active at a time.
To me this implies that the spell can at most make a 10' long bridge of ice.
Am I missing something, or is the cantrip Shape Water unable to build ice bridge longer than 10'?