Big Muddy Adventures at the Boathouse
Gravois Creek near Big Muddy Adventures at the Boathouse
About this river
Gravois Creek is a 2.2 mile stream near Big Muddy Adventures at the Boathouse in Missouri. Streamflow is measured at the USGS gauge Gravois Creek near Mehlville, MO (site 07010180). The National Hydrography Dataset places it at stream order 4. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1996 to 2026
Gravois Creek typically runs highest in May, at a median 7.9 cfs, and lowest in October, at 2.0 cfs. The highest flow on record for any single day is 2,180 cfs, in 2025.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 4.6 | 2.7 to 9.2 | |
| February | 5.8 | 3.5 to 11 | |
| March | 7.2 | 4.3 to 16 | |
| April | 7.7 | 5.0 to 19 | |
| May | 7.9 | 4.5 to 21 | |
| June | 5.4 | 2.9 to 13 | |
| July | 3.9 | 2.1 to 8.6 | |
| August | 2.8 | 1.6 to 6.3 | |
| September | 2.2 | 1.1 to 4.5 | |
| October | 2.0 | 1.3 to 4.5 | |
| November | 3.5 | 1.8 to 6.4 | |
| December | 4.1 | 2.4 to 7.6 |
Typical is the median of each month’s daily median values, and the usual range runs from the median 25th to the median 75th percentile, across about 30 years of record. Statistics published by the US Geological Survey for Gravois Creek near Mehlville, MO (site 07010180). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
Embed this gauge on your site
Paste this snippet anywhere, an outfitter page, a club site, a trip report, to show Gravois Creek's live streamflow, water level and 7-day trend. It reads the USGS gauge directly, updates itself, and links back here.
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