Evitts Creek Aqueduct
The Evitts Creek Aqueduct is the last of the 11 aqueducts on the Canal, and is made of “Fossilferous Tonoloway Limestone” quarried upstream and shipped to the aqueduct via a […]
Town Creek Aqueduct
Town Creek Aqueduct is a single-span aqueduct. Construction began in 1837 and was abandoned in 1838 when the contractor quit during the Canal company’s financial crisis. It was completed during […]
Fifteenmile Creek Aqueduct
The Fifteen Mile Creek Aqueduct is a small, single-arch aqueduct. Built between 1838 and 1850, it is in excellent condition for a century and a half old structure. It was […]
Sideling Hill Creek Aqueduct
The Sideling Hill Creek Aqueduct was built between 1837 and 1840 primarily using Tonoloway Limestone from the quarry at the mouth of the Cacapon River, as well as Pocono sandstone […]
Tonoloway Aqueduct
Constructed between 1835 and 1839 of limestone extracted upstream on Tonoloway Creek, Tonoloway Aqueduct carried canal boats across Tonoloway Creek, a 31-mile tributary of the Potomac River. Cement for the […]
Licking Creek Aqueduct
Built between 1836 and 1838, the Licking Creek aqueduct is the first of six single-arch aqueducts on the line of the canal and the longest of the Canal’s aqueducts. The […]
Conococheague Aqueduct
The Conococheague Aqueduct is a watered and fully operational aqueduct in Williamsport. It has three 60 -foot arches and is 196 feet long, making it the second longest aqueduct on […]
Antietam Creek and Aqueduct
Running south from Pennsylvania, Antietam Creek is another large tributary feeding the Potomac River. Just three miles upstream from its meeting with the Potomac, Antietam Creek passes through the town […]
Catoctin Aqueduct
Known as the “Crooked Aqueduct” because boaters had to make a sharp turn to enter, the Catoctin Aqueduct’s structural integrity was dubious from the beginning. The elliptical center arch was […]
Monocacy Aqueduct
The eleven aqueducts along the C&O Canal are made from different stone – red sandstone, gray limestone, white granite, white and pink quartzite – each reflecting light differently. The Monocacy […]
Broad Run’s Mystery Aqueduct
Culverts and aqueducts both allowed streams and rivers to cross uninterrupted below the C&O Canal. Aqueducts were usually larger—more like bridges. But what else differentiates a culvert from an aqueduct? […]
Lock 24 “Rileys” & Seneca Aqueduct
The C&O Canal had 11 aqueducts and 74 lift locks… but one was both a lift lock and an aqueduct! This engineering marvel is located at mile 22.7, at the […]
Washington Aqueduct
Every day, 158 million gallons of the Potomac River detours into the Washington Aqueduct system and serves the many water needs of the nation’s capital. George Washington devised the plan […]
Alexandria Aqueduct
Built between 1833 and 1843, the Alexandria Aqueduct Bridge stood as a technological marvel of early 19th century engineering. It was designed to connect the Chesapeake and Ohio Canal to […]