Dalecarlia Tunnel – Crossing Over the C&O Canal loop from American University

Routes

Bike touring routes & trails

United States

District Of Columbia

Dalecarlia Tunnel – Crossing Over the C&O Canal loop from American University

Moderate

4.8

(3759)

10,208

riders

Dalecarlia Tunnel – Crossing Over the C&O Canal loop from American University

02:08

35.2km

280m

Cycling

Moderate bike ride. 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 14, 2026

Tips

Includes a segment that goes up or down a series of steps

You may need to carry your bike.

After 34.0 km for 19 m

Waypoints

Start point

Bus stop

Get Directions

2.50 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.

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25.0 km

Tastee Diner

Highlight • Restaurant

Old school diner right in the heart of Bethesda

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27.1 km

Little Falls Stream Valley Unit 2

Highlight • Trail

This small preserved area offers a shaded stretch with Little Falls Trail running along the creek. It’s mostly flat and a nice break from busier roads—great for an easy spin …

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33.1 km

Crossing Over the C&O Canal

Highlight • Bridge

It's just a shame that cycling is only allowed on the paved road. The many earthy trails to the right and left of the road are very tempting for a mountain biker. Unfortunately explicitly forbidden.

Translated by Google •

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