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Active Directory (AD) is a directory service developed by Microsoft for Windows domain networks. Windows Server operating systems include it as a set of processes and services. [1][2] Originally, only centralized domain management used Active Directory. However, it ultimately became an umbrella title for various directory-based identity-related ...
The Thomas Viaduct spans the Patapsco River and Patapsco Valley between Relay, Maryland and Elkridge, Maryland, USA. It was commissioned by the Baltimore and Ohio Railroad (B&O); built between July 4, 1833, and July 4, 1835; and named for Philip E. Thomas, the company's first president. [3] Some claim it to be the world's oldest multiple arched ...
The Bollman Truss Railroad Bridge across the Little Patuxent River at Savage, Maryland, is one of the oldest standing iron railroad bridges in the United States and the sole surviving example of a revolutionary design in the history of American bridge engineering. [ 5 ] The 160-foot (48.8 m) double-span was built in 1852 at an unknown location ...
The average population of Ohio's counties was 133,931; Franklin County was the most populous (1,326,063) and Vinton County was the least (12,474). The average land area is 464 sq mi (1,200 km 2). The largest county by area is Ashtabula County at 702.44 sq mi (1,819.3 km 2), and its neighbor, Lake County, is the smallest at 228.21 sq mi (591.1 ...
The Old Main Line Subdivision is a railroad line owned and operated by CSX Transportation in the U.S. state of Maryland. The line runs from Relay (outside Baltimore) west to Point of Rocks, and was once the main line of the Baltimore and Ohio Railroad, one of the oldest rail lines in the United States. At its east end, it has junctions with the ...
Bellaire is a village in Belmont County, Ohio, United States, along the Ohio River. The population was 3,870 at the 2020 census, having peaked in 1920. It is part of the Wheeling metropolitan area. The Bellaire Bridge (now abandoned and closed) was filmed in the 1991 motion picture The Silence of the Lambs.
The S Bridge is a historic stone arch bridge, spanning Salt Fork about 4 miles (6.4 km) east of Old Washington, Ohio. Built in 1828, it is one of the best-preserved surviving bridges built for the westward expansion of the National Road from Wheeling, West Virginia to Columbus, Ohio. S bridges derive their name from the sharply curving ...
Ashtabula lift bridge. The Ashtabula lift bridge (also known as the West Fifth Street bridge) is a Strauss bascule bridge that carries Ohio State Route 531 over the Ashtabula River in the harbor of Ashtabula, Ohio. Besides its importance as a major transportation route in Ashtabula, the bridge occupies a crucial location in the city's built ...