Port Deposit is a town in Cecil County, Maryland, United States. It is located on the east bank of the Susquehanna River near its discharge into the Chesapeake Bay. The population was 653 at the 2010 census.
The Susquehanna River is a major river located in the northeastern and mid-Atlantic United States. At 444 miles (715 km) long, it is the longest river on the East Coast of the United States. It drains into the Chesapeake Bay. With its watershed, it is the 16th-largest river in the United States, and the longest river in the early 21st-century continental United States without commercial boat traffic.
The Columbia–Wrightsville Bridge, officially the Veterans Memorial Bridge, spans the Susquehanna River between Columbia and Wrightsville, Pennsylvania, and carries Pennsylvania Route 462 and BicyclePA Route S. Built originally as the Lancaster-York Intercounty Bridge, construction began in 1929, and the bridge opened September 30, 1930. On November 11, 1980, it was officially dedicated as Veterans Memorial Bridge, though it is still referenced locally as the Columbia–Wrightsville Bridge.
The Conowingo Dam is a large hydroelectric dam in the lower Susquehanna River near the town of Conowingo, Maryland. The medium-height, masonry gravity dam is one of the largest non-federal hydroelectric dams in the U.S.
Maryland Route 273 is a state highway in the U.S. state of Maryland. Known for most of its length as Telegraph Road, the highway runs 16.58 miles (26.68 km) from U.S. Route 1 near Harrisville east to the Delaware state line near Appleton, where the highway continues east as Delaware Route 273. MD 273 is the main east–west highway of northern Cecil County, connecting Conowingo, Port Deposit, and Rising Sun with Newark, Delaware, via the communities of Calvert and Fair Hill, where the highway intersects MD 272 and MD 213, respectively. The state highway also provides access to the Fair Hill Training Center.
Maryland Route 222 (MD 222) is a state highway in the U.S. state of Maryland. The highway runs 11.36 miles (18.28 km) from MD 7 in Perryville north to U.S. Route 1 (US 1) near Conowingo. MD 222 connects Perryville, Port Deposit, and Conowingo along its route paralleling the Susquehanna River in western Cecil County. Due to limitations in the highway in Port Deposit, including a steep hill and a low railroad bridge, trucks are directed to use MD 275, MD 276, and US 1 through Woodlawn and Rising Sun to connect Interstate 95 (I-95) with US 222 in Conowingo.
Conowingo is a community in western Cecil County, Maryland, United States.
The Port Deposit Bridge was the earliest bridge crossing of the Susquehanna River below Columbia, Pennsylvania, providing the first reliable link between the northern and southern United States. The bridge was also the fifth and last of Theodore Burr's Susquehanna crossings. The wooden covered bridge was constructed just north of Port Deposit, Maryland, between 1817 and 1818 and lasted until 1857. It was built and operated by the Susquehanna Bridge and Bank Company.
The Safe Harbor Dam is a concrete gravity dam on the lower Susquehanna River with an associated hydroelectric power station. It is the most northerly and last of three Great Depression-era public electrification projects' hydroelectric dams and was constructed between 1 April 1930 and 7 December 1931. It created a long and relatively shallow lake along the upper stretch of the Conejohela Valley known as Lake Clarke. The creation of the lake shrank the upper Conejohela Flats in size.
Theodore Burr was an inventor from Torrington, Connecticut, who was credited with the Burr Arch Truss bridge design. Burr was awarded US Patent No. 2769 on April 4, 1817 for his arch and truss bridge design.
Susquehanna State Park is a public recreation area located on the banks of the lower Susquehanna River north of the city of Havre de Grace, Maryland. The state park's main area is on the west bank of the river; the park also manages land on the river islands and east bank. The park offers fishing, boating, camping, and trails for hiking and equestrian use. It is managed as a complex with Rocks State Park and Palmer State Park by the Maryland Department of Natural Resources.
Octoraro Creek is a 22.1-mile-long (35.6 km) tributary of the Susquehanna River, joining it 9 miles (14 km) above the Susquehanna's mouth at Chesapeake Bay. The Octoraro rises as an East and West Branch in Pennsylvania. The East Branch and Octoraro Creek form the southern half of the border between Lancaster and Chester counties until the creek crosses the Mason-Dixon line. It winds through northwestern Cecil County, Maryland before joining the Susquehanna.
U.S. Route 1 (US 1) is the easternmost and longest of the major north–south routes of the older 1920s era United States Numbered Highway System, running from Key West, Florida to Fort Kent, Maine. In the U.S. state of Maryland, an 80.86-mile (130.13 km) segment of the route runs through central Maryland between Mount Rainier and Rising Sun.
Deer Creek is a 52.9-mile-long (85.1 km) river in Maryland and Pennsylvania that flows through the scenic areas of Harford County and empties into the Susquehanna River, roughly halfway between the Interstate 95 bridge and Conowingo Dam. Its watershed area is 171 square miles (440 km2). Its watershed area in MD is 145 square miles (380 km2), with 3% impervious surface in 1994. It serves as a divider between the agricultural and urban/suburban areas of Harford County.
Lapidum is a ghost town in Harford County, Maryland, USA, located at the head of navigation of the Susquehanna River on the west bank across from Port Deposit.
The Susquehanna and Tidewater Canal between Wrightsville, Pennsylvania, and Havre de Grace, Maryland, at the head of Chesapeake Bay, provided an interstate shipping alternative to 19th-century arks, rafts, and boats plying the difficult waters of the lower Susquehanna River. Built between 1836 and 1840, it ran 43 miles (69 km) along the west bank of the river and rendered obsolete an older, shorter canal along the east bank. Of its total length, 30 miles (48 km) were in Pennsylvania and 13 miles (21 km) in Maryland. Though rivalry between Philadelphia, Pennsylvania, and Baltimore, Maryland, delayed its construction, the finished canal brought increased shipments of coal and other raw materials to both cities from Pennsylvania's interior. Competition from railroads was a large factor in the canal's decline after 1855. Canal remnants, including a lock keeper's house, have been preserved in Maryland, and locks 12 and 15 have been preserved in Pennsylvania. A copy of a detailed survey blueprint of the entire canal system including structures and property ownership details was donated by the Safe Harbor Water Power Corporation to Millersville University. The survey consists of 67 pages, 98 x 30 cm. and is undated but the assumption is the original was created while the canal was in use.
Louis Wernwag was a prominent bridge builder in the United States in the early 19th century.
Susquehanna River National Wildlife Refuge is located on a small island 3.79 acres (15,300 m2) in size located at the mouth of the Susquehanna River in Harford County, Maryland. It is a satellite refuge managed by Blackwater National Wildlife Refuge. In the 1920s, the island was used as a fish hatchery to produce such species as shad.
The Conejohela Flats are a group of islands in the flooded Conejohela Valley, a large floodplain along the southernmost 30 miles (50 km) of the Susquehanna River in Pennsylvania and Maryland in the United States. The valley was flooded primarily during the early 1900s by the construction of the Holtwood, Conowingo, and Safe Harbor dams from 1910 to 1931.
