Lockhouse 8

 

Lock 8, Cabin John, MD 20818

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Apple Maps Note: Please type “lock 8 parking area”  or “Lockhouse 8” for correct parking address. Google maps routes correctly using address above. 

Lockhouse 8 has laid witness to nearly 200 years of DC and Maryland history: Located in the “Seven Locks” portion of the park, the house played a vital role in keeping boats moving along this busy section near Georgetown. Over nearly a century, nine lockkeepers, some with families, tended to the locks. Locals may recall the home’s secondary caretakers, the Potomac Conservancy, whose “River Center” operated from 2005-2019. Today, the house evokes a rustic 1960s aesthetic, representing a period in which the home was used briefly as park ranger housing.

Frequently Asked Questions

Please note: These historic homes will differ from a typical hotel experience. Canal Quarters are intended as unique interpretive opportunities where guests can experience Canal history firsthand.
Overview:

Lockhouse 8 has laid witness to nearly 200 years of DC and Maryland history: Located in the "Seven Locks" portion of the park, the house played a vital role in keeping boats moving along this busy section near Georgetown. Over nearly a century, nine lockkeepers, some with families, tended to the locks. At the Canal's peak, this meant shuttling over 500 boats per day through its narrow waters. Though Lockhouse 8 was named to signify its location at the eighth lock, the building was actually the sixth of its kind constructed along the Canal.

The last lockkeeper, Charles Spong, continued to inhabit the house with his wife Sarah and three daughters, including Myrtle, until his passing in 1934. While Myrtle had moved out with her five children in 1920, they chose to come back soon after their house atop the hill was demolished to make way for the Clara Barton Parkway. After her first husband, John's Field's death, she moved back in to the house with her second husband, Charles Muck, and her children in the 1940s. The house was inhabited by them under a lease agreement with the federal government until the late 1950s.

In the 1960s, soon after the C&O Canal was officially declared a national monument by President Dwight E. Eisenhower, the building was chosen to be rehabilitated to meet demand for new park ranger housing. During this period, a park ranger, Garland Williams, and his family briefly inhabited the house. After 1963, the house lay dormant for many decades...

In the early 2000s, the Potomac Conservancy sought to utilize the house as a visitor center honoring both the history of the lockkeepers, and highlighting the ecological diversity and importance of the Potomac River/Watershed. After rehabilitating the house, the Potomac Conservancy, led by their director, local historian and author Judith Welles, opened the River Center to the public under a 15 year agreement with the National Park Service. Over 350 volunteers helped to restore the lockhouse, and a small but dedicated team kept the program in operation over the coming years. In 2019, the River Center officially closed its doors, and the house once again lay dormant.

In 2025, the Trust and NPS met to discuss suitable lockhouses for a rehabilitation project. It was decided that Lockhouse 8 was a prime candidate for restoration. The house required serious interior rehabilitation; its joists and floors had experienced damage from termites, powder post beetles, and moisture. Masonry repairs were required to stabilize the joist pockets, lintels, and foundation; overall, a full gutting of the interior was required to stabilize the structure. In Spring of 2026, the third rehabilitation of Lockhouse 8 began. Over the next four months, the Trust and NPS oversaw Winner Construction's restoration of the interior. After restoration was completed in July, the Trust implemented their interpretive plan, which was developed in conjunction with the C&O Canal NHP's Interpretation and Visitor Experience team.

Today, the house is themed to represent the 1960s; when the park was first dedicated as a national monument, and the lockhouse's use as park ranger quarters. Inside, you will find a mixture of mid-century and turn-of-the-century furnishings; rangers would be expected to fully furnish the park housing themselves, including all appliances, decorations, and sleeping arrangements. Through photographs, literature, games, and infographics, visitors will learn the full breadth of the house's various inhabitants. This house is considered half amenity; no running water or indoor plumbing is present, but the house includes electricity, baseboard heaters, pedestal fans, and a kitchen with a stove, oven, refrigerator, and other appliances. A porta-john is located along the maintenance path directly off Riverside Drive, about 200 feet from the lockhouse.

All proceeds are used to fund the maintenance and stewardship of these historic structures, along with educational programming and outreach. Thank you for your support!
Guests can use the lockbox, which contains the key (code provided in registration email) to access the lockhouse within these hours:

Check in: 3:00pm or later

Check out: No later than 10:00am.

Note: If driving to the Lockhouse, please note that the Lock 8 parking lot requires walking downhill on a footpath to the house. This may be difficult for guests with mobility issues. 
  • Vintage-style stove and oven.
  • 7.5 cu. ft. refrigerator with freezer and cooler sections.
  • Electric percolator for coffee/tea.
  • Toaster
  • Antique hoosier cabinet with tub for washing dishes.
  • Place settings for 8 guests; dishes, utensils, water glasses.
  • Basic pots, pans, and cooking utensils
  • Cleaning supplies provided (sponges, soap, kitchen spray, disinfectant wipes.)
  • Three electrical outlets
  • Porta-John located on maintenance path (end of Riverside Drive.) Roughly 125 feet past the lockhouse following the path straight past the bench.
  • Serviced by NPS contractors 1-2 times per week.
  • For directions to the porta john, please visit Lockhouse 8's directions page.
  • Two bedrooms: one with two twin beds and two twin trundle mattresses, one with one full bed and one twin trundle mattress.
  • One padded cot available for parties over 7 guests.
  • Two pedestal fans per bedroom.
  • Baseboard heater in each bedroom
  • Two electrical outlets per bedroom.
  • Mid-century loveseat.
  • Record player and  vintage radio
  • Historic games (cards, jacks, marbles, dominoes, chess, monopoly, twister.)
  • Authentic books and magazines circa 1960-69.
  • Brochures, newspapers, guides, and other Canal-related literature.
  • Three electrical outlets.
  • Pedestal fan
  • Water on-site is provided, but limited. 5 gallon jugs and a water dispenser are provided in the kitchen for drinking, washing dishes, etc. Please be judicious with water use!
  • Additionally, there is a potable water pump at Lock 10, just under 1/2 mile walk from Lock 8 at Mile Marker 8.8
  • Electric Baseboard Heating in each room with built-in dials.
  • Six pedestal fans total; two for each bedroom and one each in the living room and kitchen.
  • Fire ring
  • Picnic table
  • Firewood regularly stocked, but levels may vary. Guests are asked kindly to be judicious with firewood use.
  • Linens, such as towels, blankets and sheets are not provided.
  • Fireplaces are not functional. No fires permitted indoors.
  • No central air conditioning (electric baseboard heating and pedestal fans only.)
  • No indoor plumbing; no kitchen sink, shower, or indoor bathroom.
  • This lockhouse is not professionally cleaned between guest visits. Guests are responsible for leaving the house in a clean and livable condition to ensure a positive experience for the next guests.

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