Meramec River near Pacific, MO
River level and flood forecast · Franklin County
Normal-1.7 ftas of Mon 3:30 PM
The river is 16.7 ft below flood stage (15 ft).
Flow: 385 cubic feet per second (USGS).
The last 7 days and the forecast
NWS forecast issued Sun, Dec 31, 6 PM. Forecasts change as rain falls and as upstream water arrives.
Flood stages
| Major flood stage | 27 ft |
| Moderate flood stage | 23 ft |
| Flood stage | 15 ft |
| Action stage | 13 ft |
| Record crest (December 30, 2015) | 33.42 ft |
What floods at each level
From the National Weather Service, highest first.
- 33.8 ftNear this height, the Husky Corporation and the Pro Roller Company along Industrial Drive at Denton Road begin flooding.
- 33.5 ftThe BNSF RR tracks act as a levee protecting the eastern two-thirds of Pacific. Near this height, these tracks may be overtopped.
- 32.8 ftNear this height, Interstate 44 may close in both directions east of mile marker 254.0. This occurred during the December 2015 flood.
- 32.7 ftBackwater from Calvey Creek will force the closure of Missouri State Route O east of Robertsville near this height.
- 31 ftRailroad tracks begin to flood. This did not happen in 2015 as water
- 29.7 ftThe clubhouse at the St. Louis Skeet and Trap Club begins to flood.
- 29.5 ftNear this height, the Graphic Packaging International Company begins flooding at Denton Road and Jefferson Street.
- 28.9 ftThe Olympic Shooting Facility at the St. Louis Skeet and Trap Club is flooded.
- 27.5 ftEast Osage Street (Route 66) is closed.
- 27.2 ftMissouri State Route O west of Robertsville State Park begins flooding near this level.
- 27 ft20 to 30 residences become subject to flooding. Major flooding begins.
- 25.5 ftDenton Road from the Industrial Park south is closed.
- 25 ftEast Congress between Columbus and Olive are flooded in City of Pacific.
- 24.4 ftHighway F & O at Brush Creek is flooded and closed.
- 23.5 ftWater begins flooding the grounds at the St. Louis Skeet and Trap Club east of Pacific.
- 23 ftThe lift station property at East Congress and Elm Street begins flooding near this height.
- 22.6 ftFour houses near the gage begin to flood at this stage.
- 22 ftJefferson Street extension is flooded and closed.
- 18.6 ftHorneker Road begins to flood near this height.
- 18 ftThe left bank begins to overflow.
- 17.5 ftPrivate road under the Highway F bridge begins flooding near this height.
- 17 ftState Highway AK begins flooding near the intersection with State Highway O near this height.
- 16.5 ftOpeechee Beach Road is flooded and closed.
- 16.2 ftOpeechee Beach Road begins flooding.
- 16 ftRoute N begins to flood.
Highest crests on record
- 33.42 ft — December 30, 2015
- 33.05 ft — May 2, 2017
- 32.71 ft — December 6, 1982
- 29.6 ft — March 22, 2008
- 28.91 ft — April 14, 1994
Recent crests: 15.09 ft (March 10, 2026) · 15.77 ft (March 8, 2026) · 16.49 ft (April 22, 2025) · 23.03 ft (April 8, 2025) · 26.4 ft (November 8, 2024)
Up and down the river, and nearby
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (PCFM7); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.