The Allegheny Portage Railroad was the first railroad constructed through the Allegheny Mountains in central Pennsylvania. It operated from 1834 to 1854 as the first transportation infrastructure through the gaps of the Allegheny that connected the midwest to the eastern seaboard across the barrier range of the Allegheny Front. Approximately 36 miles (58 km) long overall, both ends connected to the Pennsylvania Canal, and the system was primarily used as a portage railway, hauling river boats and barges over the divide between the Ohio and the Susquehanna Rivers. Today, the remains of the railroad are preserved within the Allegheny Portage Railroad National Historic Site operated by the National Park Service.
The National Register of Historic Places is a United States federal official list of places and sites considered worthy of preservation. In the state of Massachusetts, there are over 4,300 listings, representing about 5% of all NRHP listings nationwide and the second-most of any U.S. state, behind only New York. Listings appear in all 14 Massachusetts counties.
The Blackstone Canal was a manmade waterway, linking Worcester, Massachusetts, to Providence, Rhode Island, and Narragansett Bay, through the Blackstone Valley, via a series of locks and canals in the early 19th century. Construction started in 1825, and the canal opened three years later. After the opening of the Boston and Providence Railroad (1835), the canal struggled for business. Its transportation role was taken over by the Providence and Worcester Railroad, which completed a parallel line in 1847. The canal shut down in 1848. Several segments of the canal are preserved, and the canal alignment and remains are on the National Register of Historic Places.
The Carrollton Viaduct, located over the Gwynns Falls stream near Carroll Park in southwest Baltimore, Maryland, is the first stone masonry bridge for railroad use in the United States, built for the Baltimore and Ohio Railroad, founded 1827, and one of the world's oldest railroad bridges still in use for rail traffic. Construction began in 1828 and was completed in 1829. The bridge is named in honor of Charles Carroll of Carrollton (1737–1832), of Maryland, known for being the last surviving signer of the Declaration of Independence, the only Roman Catholic in the Second Continental Congress (1775–1781), and wealthiest man in the Thirteen Colonies of the time of the American Revolutionary War (1775–1783).
The Patterson Viaduct was built by the Baltimore and Ohio Railroad (B&O) as part of its Old Main Line during May to December 1829. The viaduct spanned the Patapsco River at Ilchester, Maryland. It was heavily damaged by a flood in 1868 and subsequently replaced with other structures. In 2006, it was restored to limited service when a footbridge was built atop the surviving arch and abutments.
Starrucca Viaduct is a stone arch bridge that spans Starrucca Creek near Lanesboro, Pennsylvania, in the United States. Completed in 1848 at a cost of $320,000, it was at the time the world's largest stone railway viaduct and was thought to be the most expensive railway bridge as well. Still in use, the viaduct is listed on the National Register of Historic Places and is designated as a National Historic Civil Engineering Landmark.
The Moseley Wrought Iron Arch Bridge, also known as the Upper Pacific Mills Bridge, is a historic, riveted, wrought iron bowstring arch bridge now located on the campus of Merrimack College in North Andover, Massachusetts. It was added to the National Historic Civil Engineering Landmark list in 1998 and was originally part of the North Canal Historic District on the National Register of Historic Place. It is the oldest iron bridge in Massachusetts, and one of the oldest iron bridges in the United States. It was the first bridge in the United States to use riveted wrought iron plates for the triangular-shaped top chord.
The Watertown Arsenal was a major American arsenal located on the northern shore of the Charles River in Watertown, Massachusetts. The site is now registered on the ASCE's List of Historic Civil Engineering Landmarks and on the US National Register of Historic Places, and it is home to a park, restaurants, mixed use office space, and formerly served as the national headquarters for athenahealth.
Stoughton station is an MBTA Commuter Rail station in downtown Stoughton, Massachusetts. It is the current terminus of the Stoughton Branch of the Providence/Stoughton Line. The station has a parking lot to serve local riders and those driving from further south, as Stoughton is close to the Massachusetts Route 24 expressway. Stoughton currently has one platform serving one track; the platform has a mini-high section for accessibility.
The Georgia State Railroad Museum is a museum in Savannah, Georgia located at a historic Central of Georgia Railway site. It includes parts of the Central of Georgia Railway: Savannah Shops and Terminal Facilities National Historic Landmark District. The complex is considered the most complete antebellum railroad complex in the United States. The museum, located at 655 Louisville Road, is part of a historic district included in the National Register of Historic Places.
Central of Georgia Depot and Trainshed is a former passenger depot and trainshed constructed in 1860 by the Central of Georgia Railway (CofG) before the outbreak of the American Civil War. This pair of buildings was declared a National Historic Landmark in 1976, a listing that was expanded in 1978 to the old Central of Georgia Railway Savannah Shops and Terminal Facilities.
The Lowell Power Canal System is the largest power canal system in the United States, at 5.6 miles in length. It is operating through six major canals on two levels, controlled by numerous gates. The system was begun in the 1790s, beginning its life as a transportation canal called the Pawtucket Canal, which was constructed to get logs from New Hampshire down the Merrimack River to shipbuilding centers at Newburyport, Massachusetts, bypassing the 30-plus-foot drop of the Pawtucket Falls.
The Ponakin Bridge is a historic Post truss bridge spanning the Nashua River in northern Lancaster, Massachusetts. The bridge was built in 1871, and originally carried the main north–south road, which was bypassed by the construction of Massachusetts Route 70. It is now unsafe and closed even to pedestrians. The bridge, with a design once common but now extremely rare, was listed on the National Register of Historic Places in 1979.
Bartlett's Bridge is a historic stone arch bridge carrying Clara Barton Road over the French River in Oxford, Massachusetts. Built in 1889, it is a rare example of late 19th-century stone bridge construction in the state. It was originally built to provide improved capacity for vehicles servicing a nearby textile mill complex. The bridge was listed on the National Register of Historic Places in 2000.
The Middlefield–Becket Stone Arch Railroad Bridge District is a historic district extending through parts of the towns of Chester, Middlefield, and Becket, Massachusetts. The district encompasses a 3.7-mile (6.0 km) stretch of railroad right of way in which there are ten bridge crossings, including nine over the west branch of the Westfield River. The bridges were built in four time periods: 1840, 1866, 1912, and 1928. Nine of the ten bridges are stone or concrete masonry work, and one is a truss girder bridge. All are, with only minor exceptions, in excellent and original condition. The bridges were built to carry the Western Railroad through on its run from the Connecticut River to the Hudson River. This section of railroad was the most expensive the company had to build, costing over $1 million in 1840.
The North Chester Historic District is a historic district encompassing the rural village center of North Chester in the town of Chester, Massachusetts. One of the rural community's early settlement nodes, it thrived into the early 19th century around a stagecoach tavern, a few small mills, and farming, and retains buildings and archaeological remains representative of this history. The district was listed on the National Register of Historic Places in 1998.
Choate Bridge (1764) is a historic stone arch bridge carrying Route 1A/Route 133 over the Ipswich River in Ipswich, Massachusetts. It is one of the oldest surviving bridges in North America, and is probably the oldest in Massachusetts. It was listed on the National Register of Historic Places in 1972 and also has been designated as a National Historic Civil Engineering Landmark.
The Pennsylvania Railroad Old Bridge over Standing Stone Creek, also known as the Conrail Old Bridge over Standing Stone Creek, is an historic, American, multi-span, stone arch bridge that spans Standing Stone Creek and is located in Huntingdon, Huntingdon County, Pennsylvania.
Bridge in Portage Township is a historic stone arch bridge located at Portage Township in Cambria County, Pennsylvania. It was built by the Allegheny Portage Railroad in 1832, and is an 18-foot-long (5.5 m) bridge, with a semi-circular arch. It is built of coursed ashlar and crosses Bens Creek.
Lilly Bridge is a historic stone arch bridge located at Lilly in Cambria County, Pennsylvania. It was built by the Allegheny Portage Railroad in 1832, and is an 18-foot-long (5.5 m) bridge, with an elliptical shape and curved wingalls. It is built of roughly squared ashlar and crosses Burgoon Run.
