Creek CA

Walnut Creek

California • 37.9415, -122.0527

Hydrography profile Updated Dec 30, 2025

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USGS and NOAA data is for informational purposes. Source notes

Length

9 mi

14 km

Elevation

149′ → 7′

142 ft drop

Stream Order

Medium River

Slope

0.31%

16.5 ft/mi

Drainage

101 mi²

262 km²

Avg Flow

-- cfs

1.1 mph velocity

Path to Mouth

12 mi

19 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