Mill Creek (Philadelphia)
| Mill Creek | |
| River | |
 The bowl in Clark Park was once a mill pond fed by Mill Creek
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| Country | United States |
|---|---|
| State | Pennsylvania |
| Source | |
| - location | Montgomery County, Pennsylvania |
| Mouth | |
| - location | Schuylkill River |
Mill Creek rises in Montgomery County, Pennsylvania; runs southeasterly to West Philadelphia, where it enters 19th-century sewer pipes; and debouches roughly five miles later in the Schuylkill River near The Woodlands Cemetery.
The creek, which drains about 5,000 acres (20 km2), gave its name to a neighborhood in Philadelphia that it flows under.
The creek, called Nanganesey by the Lenape Indians in their patent to white settlers, was renamed Quarn Creek by the Swedish settlers. It later took the names Monson's Great Mill Fall, Mill Creek and Little Mill Creek after the factories it powered at Grays Ferry.
Originally, Mill Creek was fast-flowing (10 miles per hour) and could discharge 300,000 cubic feet per minute into the Schuylkill. It was known to flood, destroying crops and creating seas of mud.
In 1834, merchant and banker John Buckman built a 90-foot dam across Mill Creek just south of Market Street at current-day 46th Street. The dam diverted some of the water into a 12-foot-wide mill race that ran parallel to the Creek for about 1,100 feet and into a 30-by-60-foot "forebay." The water flowed under Market Street and over waterwheels that powered Buckman's mill.
As urban development began in West Philadelphia, the city covered several stream beds with cisterns and a layer of fill deep enough to level the land so that it could be platted into a regular street grid.
In 1866, a land survey determined that Mill Creek should be drained. The covering of Mill Creek began in 1869, encapsulating the watercourse in a 20-foot (6.1 m)-diameter drainpipe said to be the largest sewer pipe in the world at the time. By 1872, the creek was buried south to Baltimore Avenue. Its burial was completed around 1895, allowing the grid of rowhouse development to continue toward the city's western edge at Cobbs Creek.
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Wikipedia