Ninety-Nine Islands Reservoir water level
Source: waterdata.usgs.gov/monitoring-location/USGS-02153550, accessed October 1, 2026. Updated every 6 hours.
Ninety-Nine Islands Reservoir's elevation is 99.14 ft as of September 29, 2026. Ninety-Nine Islands Reservoir is near Unknown, South Carolina.
Ninety-Nine Islands Reservoir level history
Highs and lows are daily readings in the published data, not official records. Source: USGS daily data.
Elevation, ft, since 2005
Ninety-Nine Islands Reservoir is falling: 99.38 ft, down 0.41 ft since September 27, 2026.
On this same date last year (September 28, 2025), Ninety-Nine Islands Reservoir was 99.36 ft, about the same as today's reading.
Weekly averages of the source's daily readings; older years may be monthly or sparser where that is all the source published. Download the charted data (JSON).
Ninety-Nine Islands Reservoir map
Ninety-Nine Islands Reservoir is at 35.0318, -81.4934. Open in OpenStreetMap.
The dam
- Hydropower
Sources: nid.sec.usace.army.mil, accessed September 29, 2026
On the water
No campgrounds, boat ramps, or swim spots linked to Ninety-Nine Islands Reservoir yet.
Common questions
- Ninety-Nine Islands Reservoir's elevation is 99.14 ft as of September 29, 2026.
- In USGS daily data since October 1, 2005, Ninety-Nine Islands Reservoir's highest elevation was 107.51 ft on September 28, 2024. Its lowest since October 1, 2005 was 94.73 ft on November 2, 2017. These are the highest and lowest daily readings in the published data, not official records.
- Ninety-Nine Islands Reservoir is near Unknown, South Carolina (35.0318, -81.4934).
- Utility operates the dam at Ninety-Nine Islands Reservoir.
- Ninety-Nine Islands Reservoir's dam is used for Hydropower.