Missouri · Steelville, MO

Meramec River float season

Gauge 07013000 on the Bird's Nest and Garrison's accesses near Steelville down to Onondaga Cave. The closest big Ozark float to St. Louis, with cave stops, gravel-bar camps, and raft-loads of weekenders pouring out of Steelville, the self-proclaimed floating capital of Missouri.

canoekayaktubingraft Fullest: Mar–May Leanest: Aug–Oct
Meramec River — typical flow through the year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 200 750 1.5k 2.5k
median flow for the date middle half of years (25th–75th percentile) most years (10th–90th)

Right now at this gauge

loading CFS

Checking the live gauge…

Live reading from the USGS gauge page for Meramec River. Provisional data — subject to revision.

The year on this river

In a typical year at the Steelville gauge, the Meramec River runs fullest Mar–May and leanest Aug–Oct. Where today's reading falls inside that rhythm matters more than the raw number — the same flow that feels thin in spring can be the summer norm. Half of all past April days at this gauge ran above 600 CFS; the October median is 172 CFS.

Median of daily flows in each month across this gauge's full record — half of past days ran above these figures, half below.
Month Typical flow (CFS) Relative volume
January 291
February 373
March 552
April 600
May 559
June 352
July 216
August 183
September 175
October 172
November 215
December 254

Record context

This gauge has measured daily flow since 1923 — 103 years of record. The largest daily average ever logged here was 50,100 CFS, in November 2025. Rivers do that sometimes; it's why the safety panel above isn't decoration.

Planning dates? The trip-window checker shows what flows have historically looked like on any week you pick for this river, or see what a CFS actually looks like.

More Missouri float rivers

Common questions

When is the Meramec River usually at its fullest?

At the Steelville gauge, the fullest stretch of a typical year is Mar–May, with the single highest monthly median in April (about 600 CFS). The leanest months are usually Aug–Oct.

What is a typical summer flow on the Meramec River?

The July median at this gauge is about 216 CFS — half of past Julys ran higher, half lower. Check the ribbon chart above to see how summer compares with the rest of the year here.

Is the Meramec River safe to float right now?

No flow number can answer that, and this site never labels a river safe. What the data can tell you is how today's reading compares with 104 years of this date's history — well above typical means pushier, colder, faster water. Pair that context with a PFD, a look at the river from the bank, and a call to a local outfitter before you commit.

Which USGS gauge does this page use?

USGS gauge 07013000 (Meramec River near Steelville, MO), chosen because it best represents the Bird's Nest and Garrison's accesses near Steelville down to Onondaga Cave. Daily records here reach back to 1923.

Data: USGS gauge 07013000, approved daily records 1923–2026, retrieved 2026-08-07. Live readings are provisional and subject to revision. U.S. Geological Survey data is public domain.