Boulder Bridge Loop (Rock Creek Park) Hiking Guide
Boulder Bridge is a rustic stone arch that carries Beach Drive over Rock Creek. The Park Service's suggested loop reaches it from the Nature Center by a bridle trail, the rapids at the fall line and Rapids Bridge, then climbs back on the Western Ridge Trail. Theodore Roosevelt walked this part of the park often.
How Long Is It?
The sources differ slightly. The Park Service's summary calls it a 3.5-mile loop while its own overview says 4 miles, and Hiking Project measures 3.1 miles with 270 feet of climbing and rates it intermediate. The park estimates 90 to 200 minutes. Most of the gap comes from which side paths you use near the bridges.
The Route
Walk from the Nature Center lot into the Horse Center and find the White Horse Trail to the left of the corral fence. It descends about half a mile to Ross Drive at Picnic Grove #22. Cross, follow the path toward Beach Drive and turn right before the road bridge to walk downstream beside the rapids. Cross Rapids Bridge, then follow Beach Drive downstream for the view of Boulder Bridge, cross it, and continue to the gates at Broad Branch Road. From there the Western Ridge Trail leads north to Picnic Grove #13, and a short climb returns you to the start. That Beach Drive stretch is on the road itself, which the park closes to cars on weekends and holidays.
What You'll See
The rapids mark the fall zone, where the Park Service explains that the hard rock of the Piedmont Plateau meets the softer sediments of the Atlantic Coastal Plain. Hiking Project dates Boulder Bridge to 1902, calls it an example of rustic 'parkitecture' meant to blend into the landscape, and repeats the story that Roosevelt lost a ring there. Rapids Bridge is a narrow concrete and metal footbridge, about four feet wide and sixty feet across.
Parking and Getting There
The start is the Rock Creek Park Nature Center, 5200 Glover Road NW. When its lot is full, the park suggests Picnic Grove #13 at the Ridge and Glover Road split or the maintenance yard lot at 5000 Glover Road NW. The Nature Center building is closed until further notice, so there are no indoor restrooms at the start. Without a car, the park's directions use the C81 bus from Tenleytown-AU or Fort Totten Metro to Military Road and Glover Road.
Footing, Dogs and Water
The bridle trail is about six feet wide and fairly smooth, with occasional roots and rocks on a sustained half-mile descent. Dogs may walk the whole loop on a leash under the park's B.A.R.K. Ranger rules. The rapids look inviting on a hot day, but the park does not permit swimming or wading anywhere in Rock Creek.
Hiking tips for Boulder Bridge Loop (Rock Creek Park)
- Go on a weekend or holiday if you want the Beach Drive stretch free of cars.
- Have a backup lot in mind; the Nature Center lot fills on nice days.
- Pause on Rapids Bridge for the view, then keep moving so others can cross.
- Wear shoes with grip for the White Horse Trail descent after rain.
- Use a restroom before you arrive, since the Nature Center building is closed.
Nearby trails to explore
- Milkhouse Ford Loop (Rock Creek Park)
- Western Ridge and Valley Trail Loop (Rock Creek Park)
- Glover-Archbold Trail
Hike this trail with TrailMates
Boulder Bridge is an easy meeting point for a mixed-pace group. Plan a Rock Creek Park walk on TrailMates, settle the parking lot and start time in the event's group chat, and hike the loop together. TrailMates is on the App Store or Google Play.