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District Of Columbia

Dalecarlia Tunnel – Potomac River loop from Friendship Heights

Routes

Running trails & routes

United States

District Of Columbia

Dalecarlia Tunnel – Potomac River loop from Friendship Heights

Hard

4.6

(4328)

6,407

runners

Dalecarlia Tunnel – Potomac River loop from Friendship Heights

02:34

24.3km

130m

Running

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

Last updated: August 12, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Chesapeake and Ohio Canal National Historical Park

Little Falls Stream Valley Park

Waypoints

Start point

Train Station

Get Directions

6.34 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

10.5 km

Fishing Shore Beach

Highlight • Beach

Nestled beside the Capital Crescent Trail, this cozy fishing beach along the Potomac River invites cyclists to stop and recharge. A perfect spot to take a breather from your ride.

Tip by

13.1 km

The Potomac River, stretching 405 miles from the Potomac Highlands in West Virginia to Maryland's Chesapeake Bay, ranks as the fourth-largest river on the East Coast. Swimming is prohibited in the District of Columbia's portion of the river. George Washington envisioned the Potomac as "the great avenue into the Western Country," and it played a central role in his life, serving as a vital hub during his era. For scenic views of the Potomac River on a bike, follow the Capital Crescent Trail, the Chesapeake and Ohio Canal Trail, or the Potomac Heritage National Scenic Trail.

Tip by

19.8 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

24.3 km

End point

Train Station

Way Types & Surfaces

Way Types

19.2 km

2.81 km

1.05 km

836 m

354 m

Surfaces

16.2 km

3.46 km

2.09 km

2.07 km

265 m

164 m

Elevation

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

Weather

Monday 24 August

28°C

16°C

-- %

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Comments

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Dalecarlia Tunnel – Potomac River loop from Friendship Heights

Dalecarlia Tunnel

Fishing Shore Beach

Potomac River

Dalecarlia Tunnel

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