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River WA

Hamma Hamma River

Washington • 47.5465, -123.0582
Length
18 mi
29 km
Elevation
3,756′ → 9′
3,747 ft drop
Stream Order
6
Large River
Slope
3.98%
210.3 ft/mi
Drainage
84 mi²
217 km²
Avg Flow
547 cfs
1.7 mph velocity
Path to Mouth
18 mi
28 km to ocean
Classification
Headwater
Source Stream
Elevation Profile
Water Quality

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

EPA WQP MyWaterway
Data from USGS & NOAA for informational purposes only. More
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Water Level Gauges on Hamma Hamma River

There are 1 USGS water level monitoring stations on Hamma Hamma River providing real-time flow and stage data.

Access Sites on Hamma Hamma River

There are 7 boat ramps, launches, and public access points on Hamma Hamma River.