Broad River Below Ninetynine Island Reservoir, SC

USGS Site No: 02153551Broad River • Cherokee County, SC

Broad River Below Ninetynine Island Reservoir, SC on the Broad River is currently at 740 cfs (Low — 16th percentile for this date) . Gage height: 26.46 ft.

Reading from

740
CFS Discharge
26.46
Gage Height (ft)
Low
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 641
25th Low threshold 903 Today: 740 cfs
50th (Median) Normal (median) 1,420
75th High threshold 2,150
95th Very High threshold 7,670

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.

32k 16k 0 cfs Apr 7 May 29
10th–95th historical Day-of-year median Recent discharge

30-Day Flow History

Date Discharge (CFS) Gage Ht (ft)
May 29, 2026 1,280
May 28, 2026 1,870 27.06
May 27, 2026 2,700 27.43
May 26, 2026 1,650 26.96
May 25, 2026 1,530 26.91
May 24, 2026 1,780 27.02
May 23, 2026 921 26.57
May 22, 2026 616 26.36
May 21, 2026 501 26.26
May 20, 2026 437 26.18
May 19, 2026 481 26.23
May 18, 2026 563 26.33
May 17, 2026 565 26.33
May 16, 2026 678 26.41
May 15, 2026 647 26.39
Apr 21, 2026 887 26.29
Apr 20, 2026 990 26.35
Apr 19, 2026 881 26.29
Apr 18, 2026 974 26.34
Apr 17, 2026 890 26.29
Apr 16, 2026 973 26.34
Apr 15, 2026 986 26.35
Apr 14, 2026 1,000 26.36
Apr 13, 2026 1,120 26.42
Apr 12, 2026 1,040 26.38
Apr 11, 2026 1,040 26.38
Apr 10, 2026 1,040 26.38
Apr 9, 2026 1,060 26.39
Apr 8, 2026 1,060 26.39
Apr 7, 2026 1,180 26.46

Station Information

USGS Site No
02153551
State
SC
Coordinates
35.0312, -81.4926
Drainage Area
1,550 mi²
Datum (ft)
410.6
HUC Code
03050105
View on USGS NWIS →

Flood Stage Thresholds

Action Stage
104.0 ft
Flood Stage
108.0 ft
Moderate Flood
112.0 ft
Major Flood
118.0 ft

Currently 81.54 ft below flood stage.

Recent Extremes

Max discharge
11,000 cfs
Aug 12, 2025
Min discharge
437 cfs
May 20, 2026
Days at flood stage
0

Computed from the local daily-values archive.

Nearby Gauges