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Chesapeake & Ohio Canal National Historical ParkPhoto of park employees portraying Irish laborers along the canal
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Chesapeake & Ohio Canal National Historical Park
Canal Construction
Drawing of canal construction

NPS Drawing

Construction lasted about 22 years along the canal.

Canal Construction 1828-1850

On July 4, 1828, President John Quincy Adams began "The Great National Project" by turning over the canal's first shovel full of earth near Little Falls, five miles west of Washington, DC. The rocky ground embarrassed the president with three false starts, and foreshadowed how difficult construction would be. The high cost of labor, materials, and land far exceeded original estimates. Rough terrain, labor unrest, disease, and legal battles over land consistently delayed work on the canal. When the canal finally reached Cumberland 22 years later, the original plan to extend the canal to the headwaters of the Ohio River in Pittsburg had long since been abandoned.

 
Photo of a stone mason working on a lock wall

NPS Photo

Masons often claimed their work was not a procedure but an art.

Construction scenes were often described as a dizzy stir of activity. Irish, German, Dutch, and English immigrants, promised a better life in America, worked long hours for little pay using primitive tools to dig the canal. Masons, stonecutters, carpenters, and blacksmiths were employed to create the engineering marvels along the canal. These included 11 multi-arched aqueducts and a 3118-foot long brick-lined tunnel. Seventy-four lift locks raised and lowered water levels, working like a staircase to adjust for a 605-foot difference in elevation between Georgetown and Cumberland. Sections opened for navigation as they were completed: Georgetown to Seneca in 1830, then to Harpers Ferry in 1833, to near Hancock in 1839, and finally to Cumberland in 1850. In October of that year, the first five boats filled with coal traveled the distance of the canal.

Photo canal boat exiting lock 20.  

Did You Know?
Most freight boats on the C&O Canal were approximately 95 feet long and 14.5 feet wide while most locks were 100 feet long and 15 feet wide. This left boat captains little margin for error as they steered their boats into the locks, trying to avoid the $5.00 fine for damaging lock masonry.

Last Updated: July 23, 2006 at 15:42 EST