Rapp Creek (Tinicum Creek)

Rapp Creek
	Rapp Creek
Other name(s)	Rapp Run
Country	United States
State	Pennsylvania
County	Bucks County
Township	Nockamixon Township
Physical characteristics
Main source	Pond; Pond near Lake Warren; 530 feet (160 m); 40°32′36″N75°09′26″W / 40.54333°N 75.15722°W
River mouth	Confluence of Rapp Creek and Beaver Creek forming the headwaters of Tinicum Creek; 240 feet (73 m); 40°28′50″N75°08′48″W / 40.48056°N 75.14667°W
Length	5.71 miles (9.19 km)
Basin features
Progression	Rapp Creek-Tinicum Creek-Delaware River
River system	Delaware River
Basin size	6.97 square miles (18.1 km2)
Waterbodies	Lake Warren
Bridges	Lake Warren Road, Lonely Cottage Road, Colonial Way, Marienstein Road, Beaver Run Road, Quarry Road, Bunker Hill Road, Clay Ridge Road

Last updated May 04, 2019

Rapp Creek is a tributary of Tinicum Creek in Nockamixon Township, Bucks County, Pennsylvania in the United States. Rapp Creek is part of the Delaware River watershed.

A tributary or affluent is a stream or river that flows into a larger stream or main stem river or a lake. A tributary does not flow directly into a sea or ocean. Tributaries and the main stem river drain the surrounding drainage basin of its surface water and groundwater, leading the water out into an ocean.

Tinicum Creek is a tributary of the Delaware River in Tinicum Township, Bucks County, Pennsylvania in the United States.

Nockamixon Township is a township in Bucks County, Pennsylvania, United States. The population was 3,441 at the 2010 census.

Statistics

Rapp Creek was entered into the Geographic Names Information System on 2 August 1979 as identification number 1184658. It appears in the Pennsylvania Gazatteer of Streams as identification number 03235 which indicates that Rapp Creek has a watershed of 6.97 square miles (18.1 km²). Rapp Creek and Beaver Creek meet their confluences together at Tinicum Creek's 6.40 river mile.^[1]^[2]

A drainage basin is any area of land where precipitation collects and drains off into a common outlet, such as into a river, bay, or other body of water. The drainage basin includes all the surface water from rain runoff, snowmelt, and nearby streams that run downslope towards the shared outlet, as well as the groundwater underneath the earth's surface. Drainage basins connect into other drainage basins at lower elevations in a hierarchical pattern, with smaller sub-drainage basins, which in turn drain into another common outlet.

Beaver Creek is a tributary of Tinicum Creek in Bridgeton, Nockamixon, and Tinicum Townships in Bucks County, Pennsylvania, in the United States. The creek is part of the Delaware River watershed.

In the United States, a river mile is a measure of distance in miles along a river from its mouth. River mile numbers begin at zero and increase further upstream. The corresponding metric unit using kilometers is the river kilometer. They are analogous to vehicle roadway mile markers, except that river miles are rarely marked on the physical river; instead they are marked on navigation charts, and topographic maps. Riverfront properties are sometimes partially legally described by their river mile.

Course

The headwaters of Rapp Creek rises from an unnamed pond south of Coffman Hill in upper Bucks County and flows into Lake Warren within a few hundred feet. Lake Warren was formed as a result of an earthen dam about 1935 and is owned by the Pennsylvania Fish and Game Commission. The dam is about 10 feet high, 110 feet long which allows Warren to contain a surface area of 15 acres (6.1 ha). After Lake Warren, Rapp continues generally southeastward for about two-thirds of its length receiving a tributary from the left. Then as it turns to flow to the southeast, it picks up a tributary from the right bank next to a quarry. After a short length it meets Beaver Creek to form Tinicum Creek.^[1]

Geology

Appalachian Highlands Division
- Piedmont Province
  - Gettysburg-Newark Lowland Section
    - Brunswick Formation
    - Lockatong Formation
    - Diabase
The Triassic Lockatong Formation is a mapped bedrock unit in Pennsylvania, New Jersey, and New York. It is named after the Lockatong Creek in Hunterdon County, New Jersey.
Diabase or dolerite or microgabbro is a mafic, holocrystalline, subvolcanic rock equivalent to volcanic basalt or plutonic gabbro. Diabase dikes and sills are typically shallow intrusive bodies and often exhibit fine grained to aphanitic chilled margins which may contain tachylite. Diabase is the preferred name in North America, yet dolerite is the preferred name in most of the rest of the world, where sometimes the name diabase is applied to altered dolerites and basalts. Many petrologists prefer the name microgabbro to avoid this confusion.

Appalachian Mountains mountain range in the eastern United States and Canada

The Appalachian Mountains, often called the Appalachians, are a system of mountains in eastern North America. The Appalachians first formed roughly 480 million years ago during the Ordovician Period. They once reached elevations similar to those of the Alps and the Rocky Mountains before experiencing natural erosion. The Appalachian chain is a barrier to east–west travel, as it forms a series of alternating ridgelines and valleys oriented in opposition to most highways and railroads running east–west.

Piedmont (United States) plateau region located in the eastern United States

The Piedmont is a plateau region located in the Eastern United States. It sits between the Atlantic coastal plain and the main Appalachian Mountains, stretching from New Jersey in the north to central Alabama in the south. The Piedmont Province is a physiographic province of the larger Appalachian division which consists of the Gettysburg-Newark Lowlands, the Piedmont Upland and the Piedmont Lowlands sections.

The Geology of Pennsylvania consists of six distinct physiographic provinces, three of which are subdivided into different sections. Each province has its own economic advantages and geologic hazards and plays an important role in shaping everyday life in the state. They are: the Atlantic Coastal Plain Province, the Piedmont Province, the New England Province, the Ridge and Valley Province, the Appalachian Plateau Province, and the Central Lowlands Province.

Rapp Creek begins in a region of diabase, an igneous intrusion rising during the Jurassic and the Triassic which consists of dark and very fine grained labradorite and augite. It then flows into the Lockatong Formation, a sedimentary layer consisting of dark-gray to black argillite, shale, with some limestone and calcareous shale. Shortly before it meets the Tinicum, it passes into the Brunswick Formation, which consists of sedimentary mudstone, siltstone, and shale. Mineralogy includes argillite and hornfels.^[3]

Crossings and Bridges

Crossing	NBI Number	Length	Lanes	Spans	Material/Design	Built	Reconstructed	Latitude	Longitude
Clay Ridge Road	7567	17 metres (56 ft)	1	2	Steel stringer/multi-beam or girder	1917	-	40°28'54.3"N	75°8'49.2"W
Bunker Hill Road	-	-	-	-	-	-	-	-	-
Quarry Road	7573	16 metres (52 ft)	1	2	Masonry Arch-deck	-	-	40°29'49.9"N	75°9'56.4"W
Beaver Run Road	7563	24 metres (79 ft)	2	1	Masonry Arch-deck	1902	1963	40°30'44.8"N	75°9'13.3"W
Marienstein Road	-	-	-	-	-	-	-	-	-
Colonial Way	-	-	-	-	-	-	-	-	-
Lonely Cottage Road	7625	7 metres (23 ft)	2	1	Steel stringer/multi-beam or girder	1960	-	40°31'58.9"N	75°9'14.5"W
Lake Warren Road	-	-	-	-	-	-	-	-	-

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References

1 2 "GNIS Feature Search". TNM download. U.S. Geological Survey, U.S. Department of the Interior. Retrieved 15 January 2018.
↑ http://www.lycoming.edu/cwi/pdfs/paGazetterOfStreams.pdf
↑ "Pennsylvania Geological Survey". PaGEODE. Pennsylvania Department of Conservation and Natural Resources. Retrieved 10 December 2017.

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[NationalMap-1] 1 2 "GNIS Feature Search". TNM download. U.S. Geological Survey, U.S. Department of the Interior. Retrieved 15 January 2018.

[2] ttp://www.lycoming.edu/cwi/pdfs/paGazetterOfStreams.pdf

[3] "Pennsylvania Geological Survey". PaGEODE. Pennsylvania Department of Conservation and Natural Resources. Retrieved 10 December 2017.