| Mill Creek | |
| Pushpin Map: | USA Pennsylvania |
| Pushpin Map Size: | 250 |
| Pushpin Map Alt: | pushpin map showing location of |
| Subdivision Type1: | Country |
| Subdivision Name1: | United States |
| Subdivision Type2: | State |
| Subdivision Name2: | Pennsylvania |
| Subdivision Type3: | County |
| Subdivision Name3: | Bucks |
| Subdivision Type4: | Township |
| Subdivision Name4: | Doylestown Warrington |
| Length: | 6.08miles |
| Source1: | Lahaska Creek, Watson Creek |
| Source1 Elevation: | 217feet |
| Mouth Elevation: | 120feet |
| Progression: | Mill Creek → Neshaminy Creek → Delaware River → Delaware Bay |
| River System: | Delaware River |
| Basin Size: | 4.88sqmi |
| Basin Landmarks: | Lookaway Golf Club, Briarwood Day Camp |
| Tributaries Right: | Robin Run (4.39) |
| Custom Label: | Slope |
| Custom Data: | 15.95ft/mi |
Mill Creek is a tributary of Neshaminy Creek, one of three tributaries of the Neshaminy which all share the same name, and one of six in Bucks County, Pennsylvania which share the name.[1] The Geographic Name Information System I.D. is 1181118,[2] U.S. Department of the Interior Geological Survey I.D. is 02596.[3]
Mill Creek begins with the confluence of Watson Creek and Lahaska Creek in the central portion of Buckingham Township a short distance south-southeast of the village of Buckingham, flows generally southeast for almost 2.5miles to the southwest of Buckingham Mountain where it turns to the east. At the confluence with an unnamed tributary from the left, Mill Creek turns southward for a little more than 0.5mile. Meeting with another unnamed tributary from the left, it now flows southwestward about another 0.5mile until Robin Run joins at Mill Creek's 4.39 river mile from the right where it runs south-southwest for 1.33mile to its confluence at Neshaminy Creek's 23.65 river mile just south of Rushland.[4]
At Mill Creek's headwaters, at the confluence of Lahaska Creek and Watson Creek, is the Allentown Formation, a sedimentary layer of rock deposited during the Cambrian. Mineralogy includes dolomite, limestone, chert, siltstone, oolite, stromatolites, and sharpstone conglomerate.
After a very short distance, it flows into the Leithsville Formation, a sedimentary layer also deposited during the Cambrian. Mineralogy includes dolomite, some containing sand or shale, calcareous shale, and chert.
It then flows into the Brunswick Formation, a sedimentary layer laid down during the Jurassic and Triassic. Mineralogy includes shale, mudstone, siltstone, green and brown shale.
Shortly before it reaches the Neshaminy, it flows into the Lockatong Formation, another formation of sedimentary rock. Mineralogy includes a dark-gray to black argillite, some zones of black shale, and some limestone and calcareous shale.
| Crossing | NBI Number | Length | Lanes | Spans | Material/Design | Built | Reconstructed | Latitude | Longitude | |
|---|---|---|---|---|---|---|---|---|---|---|
| Swamp Road | 40820 | 22m (72feet) | 2 | 1 | Steel stringer/multi-beam or girder | 2000 | - | 40°15'34.1"N | 75°1'33.3"W | |
| Forest Grove Road | 7346 | 129.9feet | - | 6 | masonry arch-deck | 1905 | - | 40°16'54"N | 75°1'18"W | |
| Smith Road (373) | 7523 | 84feet | - | 6 | Prestressed concrete box beam or girder, concrete cast-in-place deck | 2000 | - | 40°17'11"N | 75°1'32"W | |
| New Hope Road | 70815 | 48.9feet | - | - | Prestressed concrete box beam or girder, concrete cast-in-place deck | 1983 | - | 40°17'21"N | 75°2'4"W | |
| Lower Mountain Road | 7532 | 68.9feet | - | - | Prestressed concrete box beam or girder, concrete cast-in-place deck | 1982 | - | 40°18'5"N | 75°2'56"W | |
| Upper Mountain Road | 7533 | 66.9feet | - | - | Prestressed concrete box beam or girder | 1995 | - | 40°18'33"N | 75°3'7"W |