Why the Glover-Archbold Walk Still Stops Short of the River This Fall, Even After the Trestle Agreement

The southern end of the Glover-Archbold Trail is still closed this fall. A string of July headlines made it sound like the reopening was close. In fact, the agreement the National Park Service announced on July 15 settled whether the Foundry Branch trestle comes down. It did not settle when. Without a date, the gap under the bridge has no end in sight, even though the trail has been fenced there since 2016.

For anyone in Spring Valley or Wesley Heights who walks the park, that changes how to plan a fall outing. The park is open from Van Ness Street down through its middle stretches. The final link to the Potomac stays closed, and nothing in the public record yet says for how long.

What the Sign at the South End Says Right Now

The Park Service's Rock Creek Park alerts page, last updated September 18, 2026, lists the southern end of the Glover Archbold Trail as under "an emergency closure until further notice due to aerial hazards." The posted detour uses Foxhall Road, 44th Street NW, and P Street NW. The separate detour page has turn-by-turn directions, but it was last updated in 2022 and lists 45th Street for one leg. Where the two disagree, follow the signs on site.

The "aerial hazard" is the trestle itself. WTOP describes it as a 280-foot bridge built in 1896 that carried the Glen Echo Line from Georgetown past Glen Echo Park until 1960. Over the years the mostly wooden structure became overgrown and weathered. The trail beneath it was cordoned off in 2016, when debris began to fall.

The bridge belongs to WMATA, but it sits on federal parkland. It is the last streetcar bridge left in the District, and it counts as a contributing resource to Glover-Archbold Park, which is on the National Register of Historic Places. Those overlapping layers explain why years of debate came before the July agreement.

Years of Dead Ends, Then an Agreement Without a Date

WUSA9 traces the timeline. A 2014 engineering study commissioned by WMATA found the bridge structurally unsound and dangerous to walk under. Later studies of reuse went nowhere. In 2023 the Mayor's Office approved WMATA's raze permit, and the D.C. Court of Appeals dismissed the D.C. Preservation League's effort to keep the bridge in place.

What remained was the federal side. WMATA needs the Park Service's permission to stage equipment on parkland and reach the site. The Memorandum of Agreement released on July 15 documents the Park Service's review under Section 106 of the National Historic Preservation Act. It also lists the required mitigation: historic documentation, interpretive signs, keeping the concrete footers, and landscape work.

"Losing a historic structure like the trestle bridge is not something we take lightly," Rock Creek Park Superintendent Brian Joyner said in the release quoted by The Georgetowner. "We remain committed to honoring the site's history while restoring safe access for everyone who enjoys the park."

That same July 20 article explains why the reopening is not imminent. It reported that the agreement was "still waiting to be finalized." Once it is, the Park Service will issue the special use permit that lets WMATA remove the bridge. Neither agency had announced a demolition start date.

The Six-Month Clause That Sets the Pace

The most useful detail for local walkers is in WUSA9's report. Historians and photographers will document the trestle thoroughly at least six months before demolition begins. The agreement does not say when WMATA has to start, and it stays in effect for ten years.

Put those terms next to the calendar and the timeline gets clearer. The steps between today and a reopened trail run in this order:

1. The agreement is finalized and signed.
2. The Park Service issues WMATA a special use permit to work on parkland.
3. The trestle is documented, at least six months before any demolition.
4. WMATA removes the bridge and keeps the concrete footers in place.
5. The site is cleared, replanted with native vegetation, and the trail under the bridge reopens.

None of the public sources reviewed for this piece name a contractor, a demolition length, or a reopening date. Even if documentation started this week, the six-month minimum would push demolition to April 2027 at the earliest, and the replanting and reopening would come after that. A ten-year agreement with no start date allows a much longer wait than that. For now, the river end of the trail is closed indefinitely.

Why This Particular Gap Matters

When the work is done, the Park Service plans to replant the site with native vegetation and reopen the trail "after years of closure," which it says will restore "an important pedestrian connection." WTOP quotes the agreement itself, which says the reopening will let the park "continue to function as a critical greenway that extends from upper Northwest Washington, D.C., to the Potomac River."

The Georgetowner adds that this trail is the only non-motorized path connecting Georgetown University and MedStar Georgetown University Hospital to the Palisades. That is why the closure matters beyond weekend hikers. Once the trestle is gone, the history will be marked by interpretive signs along Canal Road NW and by the concrete footers left standing.

The Park That Is Open This Fall

Most of Glover-Archbold is open and walkable. The Park Service describes a 183-acre park with a nearly 2.5-mile trail that is rugged, unpaved, and open to foot traffic only. It runs from Van Ness Street down to Foundry Branch Park. The agency also cautions that major streets cut across the park. A birding guide for the area lists entrances at Massachusetts Avenue and Macomb Street, at 44th Street and Reservoir Road, and at Van Ness Street and 40th Place. Those listings predate this year, so check access in person.

The open stretches are also being worked on. Rock Creek Conservancy says it has removed invasive plants from about six acres of Glover-Archbold since summer 2024 and plans native planting in early 2027. If the trestle schedule moves as slowly as its terms allow, the Conservancy's plantings could arrive before the southern trail reopens.

To reach the river this season, use other routes:

• Fletcher's Cove. As of the C&O Canal conditions page updated September 29, 2026, the parking lot, access road, and restrooms are open.
• Capital Crescent Trail near the Potomac Aqueduct. There is a local detour. DC Water said in May that the trail would shift north around its work zone and stay open to pedestrians and cyclists.
• Battery Kemble Park, 3035 Chain Bridge Road NW. The Park Service notes a visible, fairly well-preserved parapet and gun positions.
• Fort Bayard Park, River Road and Western Avenue NW. The Park Service describes it as a place for picnics and ball games.

Before or After a Walk, Close to Home

On the Spring Valley end, the shopping center on Massachusetts Avenue makes an easy start or finish. Wagshal's lists its deli at 4855 Massachusetts Avenue NW and its market at 4845. Chef Trini's shares the 4855 address and has a second entrance at 4838 Yuma Street NW. Millie's is at 4866 Massachusetts Avenue NW. Playa Bowls is also on the center's current roster.

Closer to the Wesley Heights entrances, 3201 New Mexico Avenue NW has Chef Geoff's, which offers lunch, brunch, dinner, and patio dining. The same address has Wagshal's on New Mexico and Pitmasters Back Alley BBQ. Hours change by season, so check each business before you go.

The trestle agreement still needs final signatures, and it has no timeline. Until a demolition date appears on the Park Service project page, the southern detour is a fixed part of any Glover-Archbold walk this fall.

At Pryor Residential & Co., we follow Northwest DC the same way we followed this trestle story, from the announcement through to the actual schedule. If you would like to know which local changes have firm dates and which are still waiting on approvals, we are glad to talk it through. Let's Connect.