Inniscarra Headrace

Against the archive

The peak in the last 24 hours, 47.010 m, is the highest since 31 Oct, when it reached 47.400 m.

The latest reading is above the average level on 72% of the 36 days in the archive.

Archive high 47.510 m on 29 Oct. Archive low 46.030 m on 22 Oct.

This record covers 36 days, not a full run of seasons, so “highest” here only means highest so far. It may still be ordinary for this river. One-off spikes are ignored when working out highs and lows, but faults can last longer than that.

This archive holds 3,375 readings over 36 days, back to 28 Sept 2026. Riverbook has been collecting for 5 hours, since 2 Nov 2026. Readings before that come from the OPW’s five-week file.

This gauge reads water held for hydro-electric generation, so levels follow how the scheme is run. It may be reported against a survey datum rather than a local zero.