| McKee Run | |
| Name Other: | McKee Creek |
| Source1 Location: | valley in Anthony Township, Montour County, Pennsylvania |
| Mouth Location: | County Line Branch in Anthony Township, Montour County, Pennsylvania |
| Mouth Coordinates: | 41.0887°N -76.7017°W |
| Progression: | County Line Branch → West Branch Chillisquaque Creek → Chillisquaque Creek → West Branch Susquehanna River → Susquehanna River |
| Length: | 4.1miles |
| Source1 Elevation: | between 940and |
| Mouth Elevation: | 525feet |
| Basin Size: | 2.68sqmi |
| Tributaries Left: | one unnamed tributary |
| Tributaries Right: | one unnamed tributary |
McKee Run (also known as McKee Creek) is a tributary of County Line Branch in Montour County, Pennsylvania, in the United States. It is approximately 4.1miles long and flows through Anthony Township. The watershed of the stream has an area of 2.68sqmi. The stream is designated as impaired by siltation and removal of vegetation due to agriculture. Land uses in the watershed include forested land, croplands, and pastures. A number of bridges cross the stream.
McKee Run begins in a valley in Anthony Township. It flows south for several tenths of a mile before turning south-southwest for a short distance and leaving the valley. The stream then turns south again for about a mile before turning southwest for several tenths of a mile. It then turns south for several tenths of a mile and crosses Pennsylvania Route 44 and receiving an unnamed tributary from the left before turning southwest. A few tenths of a mile further downstream, it receives an unnamed tributary from the right and turns south-southeast. After several tenths of a mile, the stream reaches its confluence with County Line Branch.
McKee Run joins County Line Branch 2.4miles upstream of its mouth.
McKee Run has no named tributaries. However, it does have two unnamed tributaries. These are known as UNT 18829 and UNT 18830.
There are a total of 5.84miles of streams in the watershed of McKee Run. All of these are impaired by siltation and removal of vegetation due to agriculture. However, the stream has good water quality.
The HEC-1 peak 2-year discharge of McKee Run is 272cuft/s. The 5-year peak discharge is 416cuft/s, the 10-year peak discharge is 572cuft/s, and the 25-year peak discharge is 851cuft/s. The 50-year peak discharge of the stream is 1115cuft/s, the 100-year peak discharge is 1418cuft/s, and the 500-year peak discharge is 2413cuft/s.
The elevation near the mouth of McKee Run is 525feet above sea level. The elevation of the stream's source is between 940and above sea level.
The width of the channel of McKee Run can be as high as 18feet or as low as 8feet. The bank height is 3feet in some reaches. In this area, the stream slope is 0.063ft/ft. The roughness coefficient of the stream's channel at the Pennsylvania Route 44 bridge is 0.045.
The watershed of McKee Run contains rolling hills with croplands and pastures, as well as forested mountains. The stream does not experience streambank erosion near the Pennsylvania Route 44 bridge.
The watershed of McKee Run has an area of 2.68sqmi. A total of 1.3sqmi drains into the stream upstream of the Pennsylvania Route 44 bridge. This part of the watershed is irregular in shape. The mouth of the stream is in the United States Geological Survey quadrangle of Washingtonville. However, its source is in the quadrangle of Hugesville. The watershed of the stream is in the northern part of Montour County.
The main land uses in the watershed of McKee Run above Pennsylvania Route 44 are forests, cropland, and pasture. A total of 6 percent of this part of the watershed is forested.
McKee Run was entered into the Geographic Names Information System on August 2, 1979. Its identifier in the Geographic Names Information System is 1180740. The stream is also known as McKee Creek.
A concrete bridge carrying State Route 1006 was constructed across McKee Run in 1913. It is 40feet long and is located 3miles north of Washingtonville. A bridge carrying Pennsylvania Route 44 also crosses the stream.
In 1979, The State Water Plan proposed a hypothetical reservoir known as Small Potential Reservoir #020-3 on McKee Run 1500feet upstream of Pennsylvania Route 44. Its dam was to have a height of 29feet and it was to drain an area of 1.3sqmi. The reservoir would have had a volume of 1063acre-ft if built.
The vegetation along the streambanks of McKee Run consists of grasses in some reaches. Parts of the stream could benefit from additional riparian buffering.