River MO IL

Meramec River

Missouri • 38.2518, -90.9824

Length

229 mi

369 km

Elevation

1,395′ → 376′

1,020 ft drop

Stream Order

Large River

Slope

0.08%

4.4 ft/mi

Drainage

3,958 mi²

10,252 km²

Avg Flow

3,804 cfs

2.2 mph velocity

Path to Mouth

1,370 mi

2,204 km to ocean

Classification

Headwater

Source Stream

Elevation Profile

Data from USGS & NOAA for informational purposes only. More

Monitor

Water Level Gauges on Meramec River

There are 8 USGS water level monitoring stations on Meramec River providing real-time flow and stage data.

There are 17 boat ramps, launches, and public access points on Meramec River.