2017 was, with one exception, a rather dull year regarding hydrology events in Carroll Cave. Two major floods were recorded along with one minor flood.
The major floods occurred on 29 April and 5 May. In both cases Thunder River rose to a bit over 20 feet. This is not the highest level we have seen, but it is not far from it. A minor flood occurred on 6 August with Thunder River rising to just under 3 feet. Otherwise the stream level was normal for the whole year.