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Clarks Hill Lake Water Level Today

Also known as J. Strom Thurmond Lake · Lake Thurmond

Daily level, distance to full pool and history for Clarks Hill Lake, on the Savannah River in South Carolina.

Updated · Source: US Army Corps of EngineersUSACE Provisional

Water level Provisional

317.84ft

msl · 6:00 PM EST, Nov 7, 2026

  • 12.16 ftbelow full pool (330.0 ft)
  • 1,758,107acre-ft in storage
  • −0.12 ftin 24 h−0.57 ft in 7 days−1.89 ft in 30 days
320325330335320325330335320325330335
  • Full pool
  • 1 yr ago

Is Clarks Hill Lake full?

No. Clarks Hill Lake is 12.16 ft below full pool (330.0 ft). It is 7.86 ft lower than a year ago (325.70 ft on Nov 7, 2025).

Clarks Hill Lake level history

View data table
DateLevel (ft)% full
Nov 7, 2026317.84—
Nov 6, 2026317.99—
Nov 5, 2026317.98—
Nov 4, 2026318.07—
Nov 3, 2026318.14—
Nov 2, 2026318.18—
Nov 1, 2026318.29—
Oct 31, 2026318.47—
Oct 30, 2026318.52—
Oct 29, 2026318.55—
Oct 28, 2026318.60—
Oct 27, 2026318.66—
Oct 26, 2026318.70—
Oct 25, 2026318.81—
Oct 24, 2026318.98—
Oct 23, 2026319.07—
Oct 22, 2026319.00—
Oct 21, 2026319.20—
Oct 20, 2026319.23—
Oct 19, 2026319.26—
Oct 18, 2026319.40—
Oct 17, 2026319.56—
Oct 16, 2026319.61—
Oct 15, 2026319.58—
Oct 14, 2026319.58—
Oct 13, 2026319.55—
Oct 12, 2026319.52—
Oct 11, 2026319.62—
Oct 10, 2026319.62—
Oct 9, 2026319.64—
Oct 8, 2026319.73—
  • Clarks Hill Lake level
  • Full pool 330.0 ft
  • Above full pool
Source: USACE · Daily averages since 1954

Clarks Hill Lake on Nov 7 in past years

Clarks Hill Lake water level on Nov 7 in past years
YearLevel (ft)vs todayvs full pool
2026today317.84—−12.16 ft
2025325.70+7.86−4.30 ft
2024327.45+9.61−2.55 ft
2023323.19+5.35−6.81 ft
2022324.06+6.22−5.94 ft
2021329.47+11.63−0.53 ft
2020330.80+12.96+0.80 ft
2019324.36+6.52−5.64 ft
2018326.54+8.70−3.46 ft
2017321.36+3.52−8.64 ft
2016320.73+2.89−9.27 ft

Today’s level is the lowest for this date since 2012.

Lake facts

Full pool (conservation pool)
330.0 ft msl
Seasonal target today
328.5 ft−10.65 ft vs target
Summer / winter pool
330.0 / 326.0 ft
Top of flood pool
335.0 ft msl
Bottom of conservation pool
312.0 ft msl
Record high since 1956
336.46 ftApr 10, 1964
Record low since 1956
312.25 ftDec 24, 1956
Data since
Dec 31, 1954
Dam
J. Strom Thurmond Damcompleted 1954
River
Savannah River
Operated by
US Army Corps of Engineers, Savannah District
Dam location
McCormick County, Georgia
Gauge location
33.6613, −82.1999

Dam, river and owner from the National Inventory of Dams (USACE). Records start in 1956, after the first filling of the reservoir.

Savannah River chain

UpstreamSavannah RiverDownstream
  1. Lake Hartwell647.69 ft −12.31 ft vs full pool
  2. Clarks Hill Lake317.84 ft −12.16 ft vs full poolYou are here

Richard B. Russell Lake lies between Hartwell and Clarks Hill and is not tracked here.

Weather on the lake

  1. Tonight50°FLowNE 1–5 mphPartly Cloudy
  2. Sunday70°FHighLow 49°FNE 0–3 mphSunny
  3. Monday72°FHighLow 48°FNW 0–3 mphSunny
  4. Tuesday73°FHighLow 50°FW 2 mphSunny
  5. Wednesday73°FHighLow 53°FW 2 mphMostly Sunny
  6. Thursday70°FHighLow 49°FSW 5–13 mphSlight Chance Light Rain
  7. Friday60°FHighLow 40°FW 9–15 mphMostly Sunny

Forecast: National Weather Service for the dam area (33.66, −82.20). Wind speeds are forecasts, not measurements.

Nearby lakes

Quick answers

What is the full pool level of Clarks Hill Lake?
330.0 ft above mean sea level, the top of its conservation pool. Above it, water is held in the flood pool (up to 335.0 ft) and released through J. Strom Thurmond Dam when conditions downstream allow.
How much does Clarks Hill Lake need to be full?
Clarks Hill Lake needs 12.16 ft more water to reach full pool (330.0 ft), as of Nov 7, 2026.
Is Clarks Hill Lake rising or falling?
It is falling: −0.57 ft in the last 7 days and −0.12 ft in 24 hours, to 317.84 ft on 6:00 PM EST, Nov 7, 2026 (US Army Corps of Engineers).
When was Clarks Hill Lake last full?
It was last at or above full pool (330.0 ft) on Aug 21, 2025. On Nov 7, 2026 it was 12.16 ft below.
What was the highest level ever recorded?
Clarks Hill Lake reached 336.46 ft on Apr 10, 1964. The lowest was 312.25 ft on Dec 24, 1956 (USACE data since 1956).
How much has Clarks Hill Lake changed in the last year?
In the last 12 months it ranged from 317.98 ft (Nov 5, 2026) to 325.52 ft (Nov 8, 2025), a swing of 7.54 ft.
How often is this page updated?
This page is updated several times a day with the latest reading from US Army Corps of Engineers. The last reading is from 6:00 PM EST, Nov 7, 2026.

Where this data comes from

Hourly pool elevation from the US Army Corps of Engineers (water.usace.army.mil). Recent readings are provisional and may be revised. Weather from the National Weather Service. Dam details from the National Inventory of Dams.

Lake Levels Daily is an independent site, not affiliated with TWDB, LCRA, USACE, USGS, NOAA, TVA or any lake operator. Check official sources before making safety decisions.