Rock Run is a tributary of Martins Creek in Lower Makefield Township in Bucks County, Pennsylvania in the United States.
Statistics Rock Run was entered into the Geographic Names Information System of the U.S. Geological Survey on 2 August 1979 as identification number 1185276. It is also listed in the Pennsylvania Gazetteer of Streams as identification number 02922.
Course Rock Run rises near Big Oak Road and Stony Hill Road in the southern portion of Lower Makefield Township at an elevation of approximately and is generally east oriented until river mile 2.87 where it makes a 90° turn to the right flowing south as it receives a tributary from the left. After about a mile it then turns east, then south and southwest until it discharges at Martins Creek's 3.20 river mile.
Geology Atlantic Plain Atlantic Coastal Plain Province Lowland and Intermediate Upland Section Trenton Gravel Pensauken and Bridgeton Formations Rock Run rises in the Felsic Gneiss formation laid during the Precambrian, light buff to pink and medium to fine grained rock, mineralogy includes quartz, microcline, pyroxene, and biotite. As it flows east, it runs into the Pensauken and Bridgeton Formations laid down during the Tertiary period, yellow to reddish brown feldspathic quartz sand, coarse gravel, and boulder. Then it finally flows into the Trenton Gravel Formation from the Quaternary, consisting of feldspathic quartz sand which is reddish brown, yellow, and white, with some beds of gravel.
Crossings and Bridges
Crossing NBI Number Length Lanes Spans Material/Design Built Reconstructed LatitudeLongitude Stony Hill Road--------- David Terrace--------- Esther Lane--------- Derbyshire Road--------- Makefield Road--------- Big Oak Road719822Concrete slab1955-40°12'32"N74°49'8.64"W Kent Drive--------- Valley Road--------- Alden Avenue760621Prestressed concrete box beam or girders - multiple1962-40°12'17.1"N74°48'41"W West Trenton Avenue721921Concrete continuous stringer/multi-beam or girder1920194040°12'6.2"N74°48'33.8"W Pine Grove Road731021Concrete Tee beam1957-40°11'57.2"N74°48'10.27"W U.S. Route 1 (Lincoln Highway)674631Prestressed concrete box beam or girders - single or spread1954198540°11'49.1"N74°47'53.25"W SEPTA Railroad--------- Newbold Road735522Concrete Tee Beam1954-40°11'36.7"N74°47'53.93"W Tyburn Road718422Concrete tee beam1954-40°10'50.2"N74°48'24.87"W
See also List of rivers of the United States List of rivers of Pennsylvania List of Delaware River tributaries
References