Maacama Creek is a 7.3-mile-long (11.7 km)[4] stream in northern Sonoma County, California, U.S.A., which empties into the Russian River near the city of Healdsburg.

From there, it flows south, paralleling Briggs Ranch Road almost to State Route 128, where it turns westward.

It parallels the highway for about 0.7 miles (1.1 km) before passing under to meet Redwood Creek.

Upon entering the Alexander Valley, it turns southward again and parallels Chalk Hill Road until it meets Franz Creek.

[5] Two bridges span Maacama Creek: The Chalk Hill Road bridge is a 170-foot (52 m) concrete arch built in 1915, and State Route 128 crosses the creek at milepost 17.25 on a 147-foot (45 m) concrete continuous tee beam built in 1931.