River LA

Threemile Branch

Louisiana • 30.8334, -93.7061

Hydrography profile Updated Dec 30, 2025

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USGS and NOAA data is for informational purposes. Source notes

Length

12 mi

19 km

Elevation

303′ → 99′

204 ft drop

Stream Order

Stream

Slope

0.34%

17.7 ft/mi

Drainage

15 mi²

38 km²

Avg Flow

-- cfs

0.7 mph velocity

Path to Mouth

168 mi

271 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