River IA

Middle Branch Big Nemaha River

Iowa • 40.4846, -96.5308

Hydrography profile Updated Dec 30, 2025

Checking mapped path coverage…

USGS and NOAA data is for informational purposes. Source notes

Length

32 mi

52 km

Elevation

1,481′ → 1,166′

315 ft drop

Stream Order

Medium River

Slope

0.19%

9.8 ft/mi

Drainage

95 mi²

245 km²

Avg Flow

-- cfs

1.1 mph velocity

Path to Mouth

1,742 mi

2,803 km to ocean

Classification

Tributary

Mid-reach

Elevation Profile

Water Quality

Data from EPA Water Quality Portal (USGS, EPA, state agencies).

Loading the interactive map…

Data from USGS & NOAA for informational purposes only. Read source and safety notes

Rain Radar