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Routes
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United States
Maryland
Montgomery County
Bethesda

Dalecarlia Tunnel – Dalecarlia Tunnel loop from Brookmont

Routes
Running trails & routes
United States
Maryland
Montgomery County
Bethesda

Dalecarlia Tunnel – Dalecarlia Tunnel loop from Brookmont

Moderate

3.5

(27)

84

runners

Dalecarlia Tunnel – Dalecarlia Tunnel loop from Brookmont

01:31

13.8km

100m

Running

Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels. The starting point of the route is accessible with public transport.

Last updated: April 24, 2026

Tips

Temporary access restrictions

Includes segments with temporary access restrictions.

After 7.03 km for 1.22 km

Discouraged

Waypoints

A

Start point

Bus stop

Get Directions

1

4.44 km

Little Falls Dam

Highlight • Monument

The Little Falls Dam is a low dam built in the Potomac in 1959. It now separates the Upper Potomac River and Lower Potomac River, forming the Little Falls Reservoir. …

Translated by Google •

Tip by

2

5.02 km

Lock 6, Chesapeake and Ohio Canal

Highlight • Monument

One of the locks (#6 of 75) on the Chesapeake and Ohio Canal. These should ensure the shipping traffic between Cumberland and Washington to transport coal.
The lock keeper's houses …

Translated by Google •

Tip by

5.33 km

Chesapeake and Ohio Canal

Lake

4

5.64 km

Lock 5 of the C & O Canal

Highlight • Monument

The cornerstone of Lock #5 was put in place by President John Quincy Adams in 1829. In the 19th century flooding damaged the lock so the upper red sandstone stones were added.

Tip by

5

7.40 km

Chesapeake and Ohio Canal Trail

Highlight (Segment) • Trail

The Chesapeake and Ohio Canal aka the C&O Canal operated for nearly 100 years. This canal was an important crossing for communities around the Potomac River. Things were shipped like …

Tip by

6

11.7 km

Dalecarlia Tunnel

Highlight • Structure

The Dalecarlia Tunnel runs the Capital Crescent Trail under the Washington Aqueduct and MacArthur Boulevard. It was built in 1910 as a railway tunnel and is now over 100 years old.

Translated by Google •

Tip by

7

11.7 km

Dalecarlia Tunnel

Highlight (Segment) • Structure

The Dalecarlia Tunnel, completed in 1910, is part of the Capital Crescent Trail and was originally built as a railroad tunnel. This is a very popular destination for walkers, runners, and cyclists, so be prepared to share the path.

Tip by

B

13.8 km

End point

Bus stop

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Way Types & Surfaces

Way Types

4.36 km

3.20 km

2.90 km

2.34 km

1.01 km

Surfaces

4.88 km

3.01 km

2.47 km

1.90 km

1.52 km

< 100 m

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Elevation

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (80 m)

Lowest point (10 m)

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Weather

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Today

Saturday 4 July

39°C

27°C

60 %

Additional weather tips

Max wind speed: 20.0 km/h

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Description

If you're searching for popular trails for jogging near Brookmont that offer a blend of history and nature, the Dalecarlia Tunnel – Dalecarlia Tunnel loop from Brookmont is an excellent choice. This moderate 8.6-mile (13.8 km) route, with its gentle 325 feet (99 metres) of elevation gain, can be completed in about 1 hour and 31 minutes. It's a perfect pick for anyone looking for a refreshing and accessible workout that feels far from the city.

What to expect on Dalecarlia Tunnel – Dalecarlia Tunnel loop from Brookmont

This route offers a diverse journey, primarily along the smooth, paved surface of the Capital Crescent Trail. You'll experience lushly wooded areas that provide a natural escape, making it easy to forget you're so close to urban life. The standout feature is undoubtedly the historic Dalecarlia Tunnel, a brick-lined Roman arch tunnel built in 1910, which offers a unique, cool experience with its modern LED lighting. Along the way, you'll cross bridges, run alongside streams, and pass by the Dalecarlia Reservoir. Keep an eye out for spectacular views over Rock Creek Park from a trestle. The moderate difficulty makes it suitable for most joggers, walkers, and bikers.

Planning your visit

The trail is easily accessible from the Brookmont area, offering a convenient starting point for your jog. While specific parking details aren't provided, the area is well-known for its connectivity. The Capital Crescent Trail is a busy urban path, so consider visiting during off-peak hours if you prefer a quieter experience. The trail is well-maintained and generally suitable for year-round use, though conditions can vary with weather.

Trail details

  • Distance: 8.6 miles (13.8 km)
  • Elevation gain: 325 feet (99 metres)
  • Difficulty: moderate
  • Estimated time: 1 hours and 31 minutes

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