Lock down(town)

If you live in the R-I-C and haven't been to the Canal Walk recently, you ought to go. Besides the unexpectedly temperate weather of late, there is a new feature worth checking out: A large, working, interactive model of a canal's lock system. Said model is constructed of large slabs of cut stone and bronze. There are two locks - each with their own pair of doors. A subterranean pump keeps the water flowing, and simple, out-of-sight mechanical systems adjust the water levels depending on which way the switches are thrown.

Sadly, the upper lock is already broken, but the model seems otherwise rugged. I hope somebody fixes it soon!