Highlight • Monument
Mountain biking
3.8
(9)
Gravel riding
5.0
(1)
Running
5.0
(1)
The Little Falls Dam, also known as Brookmont Dam, is a significant man-made monument located on the Potomac River, approximately two miles above Chain Bridge and just below the scenic Mather Gorge. Constructed in 1959 by the U.S. Army Corps of Engineers, this low dam plays a crucial role in the water supply system for Washington, D.C., diverting a substantial portion of the river's flow into the Washington Aqueduct. It effectively separates the Upper Potomac River from the Lower Potomac River, creating the Little Falls Reservoir.
Visitors often appreciate the dam's historical and functional importance to the region, recognizing it as a key landmark in the Potomac River landscape. While not a traditional viewpoint for panoramic vistas, its presence marks a distinct transition point along the river, offering a unique perspective on the engineering efforts that support the capital city's infrastructure. The area around the dam provides opportunities to observe the powerful flow of the Potomac.
It is essential for anyone visiting the Little Falls Dam area to exercise extreme caution. Due to its design and the powerful undercurrents it creates, the dam is known to be very dangerous for swimmers and boaters. Hikers and those exploring the riverbanks should remain aware of these hazards and avoid entering the water near the dam's base. Always prioritize safety when enjoying the natural features near Little Falls Dam.
The dam can be observed year-round, with different seasons offering varied perspectives on the Potomac River's flow and surrounding foliage. While direct access to the dam itself is restricted for safety, the surrounding parklands and trails provide opportunities for walking and enjoying the river environment. Many visitors come to appreciate the dam's role in the local ecosystem and its contribution to the region's water resources.
Hikers exploring the area often share vivid accounts of the powerful river currents and the sheer scale of the dam's structure. The sound of the rushing water is a constant reminder of the dam's function and the immense force of the Potomac. It's a place that evokes a sense of both human ingenuity and the raw power of nature, particularly when observing the river's flow from a safe distance.
Whether you're interested in the engineering marvels of the region or simply seeking a unique spot along the Potomac River, the Little Falls Dam offers a compelling destination. You can discover various walking routes and explore the natural features of the surrounding area. With komoot, you can plan your visit and find trails that offer safe and engaging ways to experience this significant man-made monument.
This Highlight is in a protected area
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Tips
September 11, 2021
Mountain biking
January 16, 2025
Hiking

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Nearby routes
Best routes near Little Falls Dam

23
riders
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

22
riders
This mountain biking loop from Dupont Circle quickly transports you to the historic Chesapeake & Ohio Canal Towpath, offering a refreshing escape from city life. You'll ride on a mostly flat path of crushed gravel and hard-packed clay, shaded by a dense tree canopy, with glimpses of the Potomac River and historical canal structures. Keep an eye out for wildlife, from deer to various birds, as you pedal through this tranquil corridor.
To begin your adventure, you'll navigate from Dupont Circle to Georgetown, where you can pick up the Capital Crescent Trail for a smoother connection to the C&O Canal Towpath at Fletcher's Boathouse. While the 19.2-mile (30.9 km) route is generally easy with only 231 feet (71 metres) of elevation gain, taking about 2 hours and 5 minutes, its moderate rating comes from the variable surface conditions, especially after rain. A hybrid or mountain bike with wider tires is recommended for the best experience.
The C&O Canal Towpath is a remarkable piece of American history, preserving the route where mules once pulled canal boats. It's a car-free pathway that stretches for 184.5 miles, offering a unique blend of natural beauty and historical significance. This particular loop provides a convenient way to experience a section of this iconic trail right from the heart of Washington D.C., making it a popular choice for local mountain biking enthusiasts.

12
riders
65.2km
04:36
360m
360m
The "Locust Grove Nature Center – Fishing Shore Beach loop from Street" is a Komoot route that, on paper, looks like a moderate 40.5-mile (65.2 km) mountain bike ride with 1192 feet (363 metres) of elevation gain, taking about 4 hours and 35 minutes. However, it's important to note that mountain biking is strictly prohibited on the natural surface trails within the Locust Grove Nature Center itself. These trails are reserved for pedestrians, offering a peaceful journey through diverse scenery like meadows, wetlands, and mature forests along the Cabin John Stream Valley corridor.
If you're planning a visit, be aware that the Locust Grove Nature Center trails are for hiking and nature walks only. You'll find over 10 miles of pedestrian-friendly paths, perfect for observing wildlife and enjoying the natural sanctuary. Parking is available at the center, which is part of Cabin John Regional Park in Bethesda, Maryland; always check for current park hours and regulations before heading out.
The Locust Grove Nature Center provides a vital green space, showcasing towering white oaks and tulip trees, and serving as a habitat for monarch butterflies, box turtles, and various bird species. It's an excellent spot for a family-friendly outing or a quiet escape, offering a natural contrast to the urban environment, even if the full mapped Komoot route isn't suitable for mountain biking.
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Elevation -10 m
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The Little Falls Dam is known for its extremely dangerous undercurrents, often referred to as a "drowning machine." Its design creates powerful recirculating flows at its base that can trap swimmers and boaters, making escape very difficult. While alterations were made in 2000 to reduce these risks, the area remains highly hazardous. It is crucial to avoid entering the water near the dam's base for any activity.
While the immediate vicinity of the dam itself is not designed for direct access, the surrounding parklands and the Potomac Heritage Trail offer numerous opportunities for hiking. Popular routes often follow the river upstream or downstream from access points like the C&O Canal Towpath, providing views of the river and the dam from a safe distance. These trails vary in length and difficulty, catering to different preferences.
Trails in the area, such as sections of the Potomac Heritage Trail and the C&O Canal Towpath, generally feature relatively flat to gently rolling terrain, especially along the canal. However, some paths leading down to the river or through wooded areas can involve moderate inclines and uneven surfaces. Significant elevation gain is not a primary characteristic of most trails directly adjacent to the dam.
Yes, the surrounding parklands and trails can be family-friendly, provided that extreme caution is exercised regarding water access. The C&O Canal Towpath, for example, offers a wide, flat surface suitable for strollers and younger children. It's important to keep children away from the river's edge near the dam due to the dangerous currents. Focus on walks on established trails and enjoy the views from safe vantage points.
Yes, many trails in the vicinity, including the C&O Canal Towpath, are dog-friendly. Dogs should be kept on a leash at all times to ensure their safety and the comfort of other visitors, especially given the potential hazards near the river. Always remember to clean up after your pet.
Parking is typically available at various access points along the C&O Canal Towpath or in nearby park areas that provide access to trails leading towards the dam. Specific parking lots can be found at locations like the Brookmont parking area or further downriver towards Chain Bridge. It's advisable to check local park service websites for the most current parking information and any potential fees.
Beyond the dam itself, the area is rich in natural beauty. You can observe the powerful flow of the Potomac River, especially from safe viewpoints. The dam is located just below Mather Gorge, a scenic section of the river known for its dramatic cliffs. The surrounding parklands are home to diverse flora and fauna, offering opportunities for birdwatching and enjoying the natural environment.
The Little Falls Dam originally blocked fish migration routes several miles below their natural end at the Great Falls of the Potomac River. To mitigate this, the dam was altered in 2000 to improve fish passage, allowing certain species to move upstream. This modification was part of ongoing efforts to support the river's ecosystem.
While there isn't direct public transport to the dam itself, several bus routes operate in the surrounding neighborhoods of Washington D.C. and Maryland. Visitors can often take public transport to areas like Georgetown or near Chain Bridge and then access the C&O Canal Towpath, which leads towards the dam. Planning your route with a public transport app is recommended.
The area around Little Falls Dam can be visited year-round. Spring offers lush greenery and blooming wildflowers, while autumn provides stunning fall foliage along the Potomac. Summer is popular but can be hot and humid, so early mornings or late afternoons are best. Winter offers a stark, serene beauty, though trails can be icy or muddy, requiring appropriate footwear.
The immediate vicinity of the dam is primarily natural parkland, so there are no cafes or restaurants directly adjacent. However, if you venture a short distance into nearby neighborhoods like Brookmont, Palisades, or Georgetown, you will find a variety of dining options, from casual cafes to full-service restaurants.