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Kelly Run (Sewickley Creek tributary) facts for kids

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Kelly Run
Map of Kelly Run mouth location
Map of Kelly Run mouth location
Map of Kelly Run mouth location
Map of Kelly Run mouth location
Location of Kelly Run mouth
Other name(s) Tributary to Sewickley Creek
Country United States
State Pennsylvania
County Westmoreland
Physical characteristics
Main source Little Sewickley Creek divide
about 0.5 miles south of Herminie, Pennsylvania
1,175 ft (358 m)
40°14′59″N 079°42′30″W / 40.24972°N 79.70833°W / 40.24972; -79.70833
River mouth Sewickley Creek
Hutchinson, Pennsylvania
798 ft (243 m)
40°13′30″N 079°44′42″W / 40.22500°N 79.74500°W / 40.22500; -79.74500
Length 2.83 mi (4.55 km)
Basin features
Progression southwest
River system Monongahela River
Basin size 1.88 square miles (4.9 km2)
Tributaries
  • Left:
    unnamed tributaries
  • Right:
    unnamed tributaries
Bridges Balentine Road, Herminie-West Newton Road, Apples Mill Road

Kelly Run is a small stream, about 2.83 mi (4.55 km) long, located in Westmoreland County, Pennsylvania. It's like a small branch that flows into a bigger stream called Sewickley Creek. Scientists call it a '1st order tributary' because it's one of the smallest streams that doesn't have other streams flowing into it before it joins a larger one.

Where Kelly Run Flows

Kelly Run starts its journey about 0.5 miles south of a town called Herminie, Pennsylvania. From there, it flows towards the southwest. Its path ends when it joins Sewickley Creek in a place known as Hutchinson.

Starting Point and End Point

The source of Kelly Run is quite high up, at an elevation of about 1,175 ft (358 m) (that's like being on top of a tall building!). When it reaches Sewickley Creek, its elevation is much lower, around 798 ft (243 m). This drop in elevation helps the water flow downhill.

Understanding the Watershed

A watershed is like a giant bowl where all the rain and snow that falls eventually drains into a specific stream or river. Kelly Run has its own watershed, which covers an area of about 1.88 square miles (4.9 km2).

Rainfall and Forest Cover

This area gets a good amount of rain, about 40.0 inches every year. A healthy watershed often has lots of trees, and about 26% of the Kelly Run watershed is covered by forests. These forests help keep the water clean and prevent erosion.

Other Streams Joining In

Kelly Run doesn't have any named streams flowing into it. However, it does have some smaller, unnamed streams that join it from both the left and right sides as it flows. These tiny streams also contribute water to Kelly Run.

Bridges Over Kelly Run

There are a few bridges that cross over Kelly Run. These include Balentine Road, Herminie-West Newton Road, and Apples Mill Road. These bridges help people and vehicles travel across the stream.

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