River LA

Bayou Petite Prairie

Louisiana • 30.7276, -91.9334

Hydrography profile Updated Dec 30, 2025

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USGS and NOAA data is for informational purposes. Source notes

Length

34 mi

54 km

Elevation

38′ → 8′

30 ft drop

Stream Order

Medium River

Slope

0.02%

0.9 ft/mi

Drainage

52 mi²

135 km²

Avg Flow

-- cfs

1.1 mph velocity

Path to Mouth

32 mi

52 km to ocean

Classification

Tributary

Mid-reach

Elevation Profile

Water Quality

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

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

Rain Radar