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Broad River in NC/SC at Ninety Nine Islands Dam

Highest listed crest 108.41 ftFlood stage 108.0 ft16 crests since 2000

The Broad River in NC/SC at Ninety Nine Islands Dam crested above flood stage 1 time among the 16 crests the National Weather Service lists from 2000 to 2024. The highest, 108.41 ft on September 28, 2024, was minor flooding, 0.41 feet above flood stage. 1 other gauge on the Broad River in NC/SC crested above flood stage within a week of it, 1 at its own highest listed crest.

The gauge

Highest listed crest
108.41 ft
September 28, 2024
Flood stage
108.0 ft
Major flooding from 118.0 ft
Crests at major
0
1 above flood stage
Most recent flood crest
September 28, 2024
108.41 ft, minor flooding
Location
Cherokee County
Near Gaffney (9.9 mi), York (14.9 mi)

Flood stages

The thresholds the National Weather Service uses for this gauge today, and how many listed crests reached each.

Flood categories, Broad River in NC/SC at Ninety Nine Islands Dam
Action stage104.07Feb 7, 2020The level at which the NWS or its partners begin to take action
Flood stage (minor)108.01Sep 28, 2024Minimal or no property damage, but possibly some public threat
Moderate flood stage112.00—Some inundation of structures and roads near the stream
Major flood stage118.00—Extensive inundation of structures and roads

Every listed crest

16 crests from 2000 to 2024. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the Broad River in NC/SC at Ninety Nine Islands Dam, 2000 to 2024 100105110115120ft Flood stage 108.0 ftMajor 118.0 ft Mar 21, 2000: 103.55 ft, below flood stageMar 30, 2001: 102.09 ft, below flood stageSep 9, 2004: 107.29 ft, action stageOct 8, 2005: 105.50 ft, action stageMar 2, 2007: 104.65 ft, action stageAug 27, 2008: 101.99 ft, below flood stageApr 11, 2009: 102.38 ft, below flood stageJan 25, 2010: 105.81 ft, action stageMar 7, 2011: 103.15 ft, below flood stageMay 15, 2012: 103.10 ft, below flood stageMay 6, 2013: 106.12 ft, action stageDec 3, 2015: 103.08 ft, below flood stageDec 25, 2015: 103.21 ft, below flood stageDec 30, 2015: 104.88 ft, action stageFeb 7, 2020: 107.59 ft, action stageSep 28, 2024: 108.41 ft, minor flooding Highest, 108.41 ft, Sep 28, 2024 200020052010201520202025

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, Broad River in NC/SC at Ninety Nine Islands Dam 2000s: 0 2010s: 0 2020s: 1 1 2000s2010s2020s
  1. These are the crests the local National Weather Service office lists for the gauge: the highest on record and recent crests. Lesser floods between them may be missing, so counts by decade are a floor.
  2. Categories use today's flood stages. Levees, dams and channel changes since a crest can make old and new stages not directly comparable.

Highest crests

Highest listed crests, Broad River in NC/SC at Ninety Nine Islands Dam
1Sep 28, 2024108.41+0.41Minor—
2Feb 7, 2020107.59−0.41Action—
3Sep 9, 2004107.29−0.71Action—
4May 6, 2013106.12−1.88Action—
5Jan 25, 2010105.81−2.19Action—
6Oct 8, 2005105.50−2.50Action—
7Dec 30, 2015104.88−3.12Action—
8Mar 2, 2007104.65−3.35Action—
9Mar 21, 2000103.55−4.45Below flood stage—
10Dec 25, 2015103.21−4.79Below flood stage—
11Mar 7, 2011103.15−4.85Below flood stage—
12May 15, 2012103.10−4.90Below flood stage—
13Dec 3, 2015103.08−4.92Below flood stage—
14Apr 11, 2009102.38−5.62Below flood stage—
15Mar 30, 2001102.09−5.91Below flood stage—
16Aug 27, 2008101.99−6.01Below flood stage—

The worst floods along the Broad River in NC/SC

For this gauge's highest crests, the other gauges on the Broad River in NC/SC that crested above flood stage within a week.

September 28, 2024: 108.41 ft here, minor flooding

  • AlstonSC · Sep 30, 2024 · 29.48 ft · Moderate · its highest

Gauges on the Broad River in NC/SC

In USGS station-number order, which runs downstream within a river basin.

Flood gauges on the Broad River in NC/SC
GaffneySC16.019.80 ft, Aug 14, 19400
Ninety Nine Islands Dam this gaugeSC108.0108.41 ft, Sep 28, 20240
Neal Shoals ReservoirSC340.0340.91 ft, Feb 8, 20200
CARLISLESC30.031.51 ft, Oct 10, 19760
AlstonSC20.029.48 ft, Sep 30, 20240

Other gauges in Cherokee County

Flood gauges in Cherokee County
Gaston Shoals Reservoir and Dam, 5 WNW Blacksburg104.8108.60 ft, Aug 16, 19280
Shelby Hwy (SC 18), 4 W Blacksburg16.026.23 ft, Sep 28, 20241
Gaffney16.019.80 ft, Aug 14, 19400
Possum Trot Rd, 5 E Blacksburg13.513.62 ft, Dec 30, 20150

Cherokee County: every hazard · River floods across the country · South Carolina

NOAA National Water Prediction Service, gauge NNRS1, retrieved October 30, 2026. Stages in feet on the gauge's own datum, not elevation. Crests are as the National Weather Service lists them; preliminary values may be revised.