South River at Flakes Mill Road near Atlanta, GA

USGS Site No: 02203900South River • DeKalb County, GA

South River at Flakes Mill Road near Atlanta, GA on the South River is currently at 88 cfs (Normal — 48th percentile for this date) . Gage height: 2.68 ft.

Reading from

88
CFS Discharge
2.68
Gage Height (ft)
Normal
Flow Condition
Normal
Flood Status

Historical Percentile Comparison

Today's discharge compared to the long-term record for June 11 at this station. Percentile rank shows what fraction of historical years had lower flow on this date.

Percentile Label CFS Threshold Today's Flow
10th Very Low threshold 32
25th Low threshold 50
50th (Median) Normal (median) 92 Today: 88 cfs
75th High threshold 185
95th Very High threshold 283

30-Day Hydrograph

Recent discharge plotted against the historical 10th–95th percentile envelope for the same calendar days. Source: USGS daily values + long-term statistics.

3.9k 2k 0 cfs Apr 6 May 28
10th–95th historical Day-of-year median Recent discharge

30-Day Flow History

Date Discharge (CFS) Gage Ht (ft)
May 28, 2026 108 2.83
May 27, 2026 318 3.76
May 26, 2026 516 4.31
May 25, 2026 281 3.46
May 24, 2026 106 2.78
May 23, 2026 114 2.84
May 22, 2026 82 2.63
May 21, 2026 93 2.66
May 20, 2026 48 2.21
May 19, 2026 39 2.17
May 18, 2026 88 2.63
May 17, 2026 38 2.14
May 16, 2026 34 2.11
May 15, 2026 35 2.12
Apr 21, 2026 38 2.16
Apr 20, 2026 37 2.15
Apr 19, 2026 38 2.16
Apr 18, 2026 40 2.18
Apr 17, 2026 40 2.19
Apr 16, 2026 41 2.20
Apr 15, 2026 43 2.22
Apr 14, 2026 42 2.22
Apr 13, 2026 44 2.23
Apr 12, 2026 48 2.28
Apr 11, 2026 46 2.27
Apr 10, 2026 46 2.27
Apr 9, 2026 47 2.27
Apr 8, 2026 48 2.29
Apr 7, 2026 51 2.33
Apr 6, 2026 69 2.50

Station Information

USGS Site No
02203900
State
GA
County
DeKalb County
Coordinates
33.6658, -84.2240
Drainage Area
99 mi²
Datum (ft)
717.7
HUC Code
03070103
View on USGS NWIS →

Flood Stage Thresholds

Action Stage
11.0 ft
Flood Stage
13.0 ft
Moderate Flood
19.0 ft
Major Flood
25.0 ft

Currently 10.32 ft below flood stage.

Recent Extremes

Max discharge
1,380 cfs
Aug 3, 2025
Min discharge
27 cfs
Oct 26, 2025
Days at flood stage
0

Computed from the local daily-values archive.