1989–present

The lake gauge's daily record begins in 1989 (Allatoona Dam closed in 1950) and has a gap from 1991 to mid-2007. The records below come from the Corps' longer record. Allatoona Lake has ranged over 51.90 vertical feet, from a record low of 809.30 ft (Dec 1954) to a record high of 861.20 ft (Apr 10, 1964). Today's 836.96 ft is higher than 51% of the 255 monthly averages since 1989.

Lake elevation history, monthly, Jan 1989 to Sep 2026, today 836.96 ft, full pool 840.00 ft, lowest 818.90 ft in Dec 2007, highest 855.81 ft in Mar 1990. Yearly summary of the monthly record.
Year	Mean (ft)	Low (ft)	High (ft)
1989	837.07	824.16	854.05
1990	836.89	824.10	855.81
2007	826.87	818.90	835.48
2008	833.85	821.64	841.00
2009	837.86	824.95	853.13
2010	835.43	823.28	842.71
2011	833.84	822.95	842.69
2012	834.20	824.40	841.61
2013	836.12	822.81	847.73
2014	835.09	823.70	842.08
2015	836.24	823.93	842.52
2016	836.25	823.69	844.62
2017	835.39	823.63	841.14
2018	835.22	822.75	842.51
2019	835.90	822.42	851.50
2020	837.35	822.68	851.52
2021	835.92	823.86	844.09
2022	834.99	823.98	840.72
2023	835.44	825.41	841.85
2024	837.09	827.30	843.45
2025	835.56	824.61	841.36
2026	835.55	824.44	841.59

Monthly mean (line) with monthly min–max band. Dashed teal line = full pool (840.00 ft).

Record high

861.20 ft

Apr 10, 1964

Record low

809.30 ft

Dec 1954

Flood pool

860.00 ft

last topped Apr 10, 1964

Full pool

840.00 ft

conservation pool

Daily values shown as monthly min, mean and max. Lake level, storage, and streamflow from USGS (Allatoona project data courtesy of USACE Mobile); record elevations from the USACE ACT record-levels table. Historical daily values are agency-reviewed; recent values are provisional.