Pennsylvania Route 112 was a 4.75 miles (7.6 km) long state highway

State highway

State highway, state road or state route can refer to one of three related concepts, two of them related to a state or provincial government in a country that is divided into states or provinces :#A...

 located in Delaware

Delaware County, Pennsylvania

Delaware County is a county located in the U.S. state of Pennsylvania. As of 2010, the population was 558,979, making it Pennsylvania's fifth most populous county, behind Philadelphia, Allegheny, Montgomery, and Bucks counties....

 and Chester

Chester County, Pennsylvania

-State parks:*French Creek State Park*Marsh Creek State Park*White Clay Creek Preserve-Demographics:As of the 2010 census, the county was 85.5% White, 6.1% Black or African American, 0.2% Native American or Alaskan Native, 3.9% Asian, 0.0% Native Hawaiian, 1.8% were two or more races, and 2.4% were...

 counties in Pennsylvania

Pennsylvania

The Commonwealth of Pennsylvania is a U.S. state that is located in the Northeastern and Mid-Atlantic regions of the United States. The state borders Delaware and Maryland to the south, West Virginia to the southwest, Ohio to the west, New York and Ontario, Canada, to the north, and New Jersey to...

. Running along current day Cheyney Road, PA 112 began at an intersection with U.S. Route 1

U.S. Route 1 in Pennsylvania

U.S. Route 1 is a major north–south U.S. Highway, extending from the Florida Keys in the south to the Canadian border in the north. In the U.S. state of Pennsylvania, US 1 runs for from the Maryland state line near Oxford to the New Jersey state line near Trenton.-Maryland to Interstate...

 in Markham, headed northward, and terminated at an intersection with Pennsylvania Route 926

Pennsylvania Route 926

Pennsylvania Route 926 is a long state route located west of Philadelphia in Chester County, Pennsylvania. The western terminus of the route is at Pennsylvania Route 10 in Upper Oxford Township. The eastern terminus is at the West Chester Pike in the Philadelphia suburb of Willistown Township,...

 in the community of Tanguy.

PA 112 was assigned in the commonwealth's numbering of state highways in 1928. The route remained intact for thirteen years, when, in 1941, the highway was extended southward to U.S. Route 322

U.S. Route 322

U.S. Route 322 is a long, east–west United States Highway, traversing Ohio, Pennsylvania, and New Jersey. The road is a spur of U.S. Route 22 and one of the original highways from 1926...

 south of Markham. The route remained for another five years, when the route was removed from the state highway system completely.

Route description

Pennsylvania Route 112 began at an intersection with U.S. Route 322

U.S. Route 322

U.S. Route 322 is a long, east–west United States Highway, traversing Ohio, Pennsylvania, and New Jersey. The road is a spur of U.S. Route 22 and one of the original highways from 1926...

 (now an intersection with Concord Road) in the community of Markham. The route progressed northward as Cheyney Road, intersecting with several local roads before passing the Newlin Grist Mill Park

Newlin Mill Complex

The Newlin Mill Complex, a water powered gristmill on the west branch of Chester Creek near Concordville, Pennsylvania, USA, was built in 1704 by Nathaniel and Mary Newlin and operated commercially until 1941. During its three centuries of operation, the mill has been known as the Lower Mill, the...

 near the intersection with U.S. Route 1

U.S. Route 1

U.S. Route 1 is a major north–south U.S. Highway that serves the East Coast of the United States. It runs 2,377 miles from Fort Kent, Maine at the Canadian border south to Key West, Florida. U.S. 1 generally parallels Interstate 95, though it is significantly farther west between...

 (the Baltimore Pike). After that intersection, PA 112 turned to the northeast, passing through Markham before leaving the community.

PA 112 went through the community of Thornton, intersecting with Glen Mills Road. At an intersection with Thornton Road, the route crossed into Chester County

Chester County, Pennsylvania

-State parks:*French Creek State Park*Marsh Creek State Park*White Clay Creek Preserve-Demographics:As of the 2010 census, the county was 85.5% White, 6.1% Black or African American, 0.2% Native American or Alaskan Native, 3.9% Asian, 0.0% Native Hawaiian, 1.8% were two or more races, and 2.4% were...

, but left quickly for Delaware County again. North of the community of Cheyney, Route 112 crossed the county line, passing the Cheyney University of Pennsylvania

Cheyney University of Pennsylvania

Cheyney University of Pennsylvania is a public, co-educational historically black university that is a part of the Pennsylvania State System of Higher Education. Cheyney University has a campus that is located in the Cheyney community within Thornbury Township, Chester County and Thornbury...

 before the terminus at an intersection with Pennsylvania Route 926

Pennsylvania Route 926

Pennsylvania Route 926 is a long state route located west of Philadelphia in Chester County, Pennsylvania. The western terminus of the route is at Pennsylvania Route 10 in Upper Oxford Township. The eastern terminus is at the West Chester Pike in the Philadelphia suburb of Willistown Township,...

in the Chester County community of Tanguy.

History

Route 112 was first assigned in the 1928 state numbering of state highways in Pennsylvania. The route, when originally assigned, did start in Markham, but at an intersection with U.S. Route 1. The route's northern terminus remained the same in the route's entire lifetime. In 1941, the southern terminus was adjusted from the intersection with U.S. Route 1 (the Baltimore Pike) to an intersection with U.S. Route 322 near Markham. Although they made the adjustment, PA 112 ended up becoming one of the many routes decommissioned in 1946, when the commonwealth of Pennsylvania removed several hundred miles from their system. The designation has not been re-used since the 1946 removal.

Major intersections