Windsor Creek is an 8.8 miles (14.2 km) southward-flowing stream

Stream

A stream is a body of water with a current, confined within a bed and stream banks. Depending on its locale or certain characteristics, a stream may be referred to as a branch, brook, beck, burn, creek, "crick", gill , kill, lick, rill, river, syke, bayou, rivulet, streamage, wash, run or...

 in Sonoma County, California

Sonoma County, California

Sonoma County, located on the northern coast of the U.S. state of California, is the largest and northernmost of the nine San Francisco Bay Area counties. Its population at the 2010 census was 483,878. Its largest city and county seat is Santa Rosa....

, USA, which rises near Healdsburg, California

Healdsburg, California

Healdsburg is a city located in Sonoma County, California, in the United States. As of the 2010 United States Census, the city had a population of 11,254...

 and feeds into Mark West Creek

Mark West Creek

Mark West Creek is a stream that rises in the Mayacamas Mountains of Sonoma County, California, USA. Tributaries of Mark West Creek include Porter Creek and Hummingbird Creek, both of which originate in the same mountain range. Discharge waters of Mark West Creek reach the Russian River after a...

 west of the Sonoma County Airport

Charles M. Schulz - Sonoma County Airport

Charles M. Schulz – Sonoma County Airport is a county-owned public-use airport located 6 nautical miles northwest of downtown Santa Rosa, a city in Sonoma County, California, United States. It serves the county and surrounding areas of Wine Country in California.The airport is named after Charles M...

. Its waters reach the Pacific Ocean

Pacific Ocean

The Pacific Ocean is the largest of the Earth's oceanic divisions. It extends from the Arctic in the north to the Southern Ocean in the south, bounded by Asia and Australia in the west, and the Americas in the east.At 165.2 million square kilometres in area, this largest division of the World...

 by way of the Russian River

Russian River (California)

The Russian River, a southward-flowing river, drains of Sonoma and Mendocino counties in Northern California. With an annual average discharge of approximately , it is the second largest river flowing through the nine county Greater San Francisco Bay Area with a mainstem 110 miles ...

.

Course

Windsor Creek rises about 5 miles (8 km) southeast of Healdsburg

Healdsburg, California

Healdsburg is a city located in Sonoma County, California, in the United States. As of the 2010 United States Census, the city had a population of 11,254...

. It descends southward into the town of Windsor

Windsor, California

Windsor is an incorporated town in Sonoma County, California, United States. The population was 26,801 as of the 2010 census.-Geography:Windsor is located on U.S. Route 101 in the Russian River valley, about southeast of Healdsburg, California....

, paralleling Brooks Road to Hiram Lewis Park. It parallels Brooks Road South to U.S. Route 101

U.S. Route 101

U.S. Route 101, or U.S. Highway 101, is an important north–south U.S. highway that runs through the states of California, Oregon, and Washington, on the West Coast of the United States...

, crossing under the freeway at milepost 29.5. It continues southwest through farmland to a confluence with Pool Creek east of Pratt Road. From there, it flows south to empty into Mark West Creek about 3 miles (5 km) northeast of Forestville

Forestville, California

Forestville is a census-designated place in Sonoma County, California, United States. The town came into existence during the late 1860s and was originally named Forrestville, after one its founders, but the spelling long ago became standardized with one "r". The population was 3,293 at the 2010...

.

Pollution

The Community Clean Water Institute (CCWI) monitors pollutants in Windsor Creek and other Sonoma County streams. Their sampling showed that Windsor creek exceeded the North Coast Basin Plan Objectives for conductivity and dissolved oxygen in 2006. CCWI has also issued alerts for nitrates in Windsor Creek.

Bridges

Windsor Creek is crossed by at least five bridges:

• at Old Redwood Highway, a 72 feet (22 m) prestressed concrete span built in 1995,
• at Windsor Road north of Wilson Lane, a 67 feet (20 m) concrete slab built in 1967,
• at Mark West Station Road, an 38 feet (12 m) concrete slab built in 1976,
• at U.S. Route 101, a 35 feet (11 m) concrete culvert built in 1962, and
• at Conde Lane east of Bell Avenue, a 26 feet (8 m) concrete culvert built in 1995.