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South Dakota Lake Levels Today

Water levels and distance to full pool for 1 South Dakota lake and reservoirs, updated every day from the US Army Corps of Engineers.

Updated Nov 8, 2026 · Source: US Army Corps of EngineersUSACE

  • 1lake tracked
  • 0at or above full pool
  • 1rising this week
  • 0falling this week

All South Dakota lakes

South Dakota lakes and reservoirs. Column headers sort the table.
Lake OaheShared with North Dakota1,592.661,607.5−14.84+0.321,600.54 ftNov 8, 12:00 AM CST
1 lake · “1 yr ago” is % full when the source gives it, otherwise the level

South Dakota lakes on the map

MinnesotaNorth DakotaWyomingIowaMontanaNebraska
Lake Oahe14.84 ft below full poolView lake
  • < 25%
  • 25–50%
  • 50–75%
  • 75–90%
  • 90–100%
  • Above full pool
  • Percent full not published
  • No lakes tracked

River chains

Missouri River chain

UpstreamMissouri RiverDownstream
  1. Fort Peck Lake2,221.31 ft −12.69 ft vs full pool
  2. Lake Sakakawea1,823.93 ft −13.57 ft vs full pool
  3. Lake Oahe1,592.66 ft −14.84 ft vs full pool

South Dakota operators

Neighboring states

Quick answers

What does “percent full” mean for a reservoir?
It is the water stored in the conservation pool divided by the capacity of that pool. Water above full pool is flood storage and does not count, so a lake can be “100% full” and still rising. See Full pool and ft msl.
Where does this data come from?
From US Army Corps of Engineers. Each lake page names its gauge and the time of the reading. See Sources.

Where this data comes from

Official gauges: US Army Corps of Engineers. Sources

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.