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Encyclopedia > Mahoning River

The Mahoning River is a river located in eastern Ohio and western Pennsylvania. It joins the Shenango River to form the Beaver River and is part of the Ohio River watershed. Official language(s) None Capital Columbus Largest city Columbus Largest metro area Cleveland Area  Ranked 34th  - Total 44,825 sq mi (116,096 km²)  - Width 220 miles (355 km)  - Length 220 miles (355 km)  - % water 8. ... Official language(s) English, Pennsylvania Dutch Capital Harrisburg Largest city Philadelphia Area  Ranked 33rd  - Total 46,055 sq mi (119,283 km²)  - Width 280 miles (455 km)  - Length 160 miles (255 km)  - % water 2. ... The Shenango River, flowing from the dam of Shenango River Lake in Mercer County, Pennsylvania The Shenango River is a principal tributary of the Beaver River, about 100 mi (160 km) long,[1] in western Pennsylvania in the United States. ... The Beaver River is a tributary of the Ohio River, approximately 21 mi (34 km) long, in western Pennsylvania in the United States. ... The Ohio River is the largest tributary by volume of the Mississippi River. ... A drainage basin is the area within the drainage basin divide (yellow outline), and drains the surface runoff and river discharge (blue lines) of a contiguous area. ...

Contents

Physical properties

It is formed near Winona in Columbiana County, Ohio, and extends for a length of approximately 113 miles (182 km) with a watershed area of approximately 1,132 square miles (2,932 km²). It joins the Shenango River near New Castle, Pennsylvania to form the Beaver River. The river traverses five Ohio counties, Columbiana, Stark, Portage, Trumbull, and Mahoning, and as well as Lawrence County, Pennsylvania. The watershed area also includes parts of Ashtabula and Geauga Counties in Ohio. Winona is an unincorporated community in Columbiana County, Ohio, United States. ... Columbiana County is a county located in the state of Ohio. ... New Castle is a city in Lawrence County, Pennsylvania, 50 miles (80 km) northwest of Pittsburgh, Pennsylvania; in 1910, the total population was 36,280; in 1920, 44,938; and in 1940, 47,638. ... Columbiana County is a county located in the state of Ohio. ... Stark County is a county located in the state of Ohio. ... Portage County is a county located in the state of Ohio. ... Trumbull County is a county located in the state of Ohio. ... Mahoning County is a county located in the state of Ohio. ... Lawrence County is a county located in the state of Pennsylvania. ... Ashtabula County is a county located in the state of Ohio. ... Geauga County is a county located in the state of Ohio. ...


The three main tributaries are Mosquito Creek, West Branch, and Eagle Creek, all in Ohio. There are 15 dams on the river course. The river has a course of 97.1 miles (156.3 km) in Ohio with the remainder in Pennsylvania.


The river supports over 72 species of fish and 15 species of freshwater mussels. Subclasses Pteriomorpha (marine mussels) Palaeoheterodonta (freshwater mussels) Heterodonta (zebra mussels) The term mussel is used for several families of bivalve mollusks inhabiting lakes, rivers, and creeks, as well as intertidal areas along coastlines worldwide. ...


The river is roughly divided into two sections. The “upper elevation” extends roughly from Winona to Leavittsburg and is generally rural in nature. The mainstem (lower elevation) extends roughly from Leavittsburg to the river’s mouth near New Castle, Pennsylvania and is heavily populated and is heavily industrialized. The mainstem area has a population of over 500,000 and has a long history of steel making, coke production, and other industries. Leavittsburg is a census-designated place located in Trumbull County, Ohio. ... Coke is a solid carbonaceous residue derived from low-ash, low-sulfur bituminous coal. ...


Environmental concerns

The industrial nature of the mainstem area has caused considerable pollution in the river. Much of the pollution has left the ecosystem via the natural river flow, but it is estimated that 750,000 cubic yards (573,416 ) of river bed and shoreline sediment over a 30 mile (48.2 km) stretch of the mainstem from Leavittsburg to the Pennsylvania border is so heavily polluted that it will need to be remediated. Approximately 45% of this material is located in the vicinity of the Girard Dam near Girard, Ohio which has acted as a trap for much of the contaminated sediment. The cubic metre (symbol m³) is the SI derived unit of volume. ... Girard is a city located in Trumbull County, Ohio. ...


Petroleum hydrocarbons, benzo(a)pyrene (polynuclear aromatic hydrocarbons), and mercury have all been found in quantities several times the maximum safe levels. Since 1988, the Ohio Department of Health has maintained an advisory against swimming or wading in the river between Leavittsburg and the Pennsylvania border and advises against eating fish caught there. The Corps of Engineers estimates that the remediation will take up to 15 years to complete and cost in excess of US$100 million. If approved, the dredging project will begin in the late 2000s. General Name, Symbol, Number mercury, Hg, 80 Chemical series transition metals Group, Period, Block 12, 6, d Appearance silvery Atomic mass 200. ... United States Army Corps of Engineers logo The United States Army Corps of Engineers, or USACE, is made up of some 34,600 civilian and 650 military men and women. ...


Cities and towns along its course include:

Winona is an unincorporated community in Columbiana County, Ohio, United States. ... Alliance is a city in Mahoning and Stark counties in Ohio. ... Newton Falls is a city located within Newton Township in Trumbull County, Ohio, United States. ... Leavittsburg is a census-designated place located in Trumbull County, Ohio. ... Warren is a city in Trumbull County, Ohio, United States. ... Niles is a city located in Trumbull County, Ohio. ... McDonald is a village located in Trumbull County, Ohio. ... Girard is a city located in Trumbull County, Ohio. ... Location within the state of Ohio Coordinates: Country United States State Ohio Counties Mahoning Founded 1796 Incorporated 1848 (village) - 1867 (city)  - Mayor Jay Williams (I) Area    - City  34. ... Campbell is a city located in Mahoning County, Ohio. ... Struthers is a city in Mahoning County, Ohio, United States. ... Poland is a village in Mahoning County, Ohio, United States. ... New Castle is a city in Lawrence County, Pennsylvania, 50 miles (80 km) northwest of Pittsburgh, Pennsylvania; in 1910, the total population was 36,280; in 1920, 44,938; and in 1940, 47,638. ...

See also

This is a list of rivers in the state of Ohio in the United States Alum Creek Ashtabula River Auglaize River Bad River Big Darby Creek Blanchard River Cuyahoga River Duck Creek Flatrock River Great Miami River (Miami River) Grand River Huron River Kokosing River Little Auglaize River Little Darby... This is a list of rivers in the U.S. state of Pennsylvania Allegheny River Clarion River Conemaugh River Delaware River Juniata River Lehigh River Monongahela River Ohio River Schuylkill River Susquehanna River West Branch Susquehanna River Youghiogheny River See also List of rivers in the United States This list...

External links

  • Mahoning River Watershed Project
  • Mahoning River Consortium

  Results from FactBites:
 
Mahoning River Ecological Restoration Project - Environmental Planning | EASTGATE COG (1095 words)
In 1988 the Ohio Department of Health issued a contact and fish consumption advisory for the lower Mahoning River beginning at the City of Warren and extending to the Ohio Pennsylvania State line.
This portion of the Mahoning River flows through eight municipalities - the City of Warren, the City of Niles, the Village of McDonald, the City of Girard, the City of Youngstown, the City of Campbell, the City of Struthers, and the Village of Lowellville.
The Mahoning River Environmental Dredging Project is the second largest USACE restoration project, second only to the restoration of the Everglades.
  More results at FactBites »

 
 

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