Rapid Creek below Pactola Dam, SD

River level and flood forecast · Pennington County

Normal7.2 ftas of Mon 1:15 PM

The river is 6.8 ft below flood stage (14 ft).

Flow: 18 cubic feet per second (USGS).

The last 7 days and the forecast

6810121416TueWedThuFriSatSunMonAction 11.5 ftFlood 14 ftModerate 15 ftMajor 16 ftNowObserved (ft)NWS forecast

NWS forecast issued Sun, Dec 31, 5 PM. Forecasts change as rain falls and as upstream water arrives.

Flood stages

Major flood stage16 ft
Moderate flood stage15 ft
Flood stage14 ft
Action stage11.5 ft
Record crest (May 19, 1965)9 ft

What floods at each level

From the National Weather Service, highest first.

  • 16 ftMajor Flood Stage. Extensive flooding along Rapid Creek with extensive inundation of structures and roads.
  • 15 ftModerate Flood Stage. Parking lot below the dam becomes flooded. Some inundation of structures and roads along Rapid Creek are possible.
  • 14 ftMinor Flood Stage. Minor flooding along the river.
  • 12 ftWater touches the bottom of the bridge downstream from Pactola Dam.
  • 11.5 ftRapid Creek begins to overflow the lower banks near the creek.

Highest crests on record

  1. 9 ft — May 19, 1965
  2. 8.98 ft — May 29, 2015
  3. 8.93 ft — July 18, 2019
  4. 8.86 ft — June 7, 1996
  5. 8.85 ft — July 2, 1998

Recent crests: 7.76 ft (July 31, 2024) · 8.34 ft (July 3, 2023) · 7.96 ft (June 6, 2022) · 8 ft (April 29, 2021) · 8.4 ft (May 4, 2020)

Up and down the river, and nearby

Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (RCBS2); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.