"It really kind of captured the seasonality." That's how Mimi Graney, Concord's economic vitality manager, described the winning design for a new mural planned inside the Powder Mill Road underpass on the Bruce Freeman Rail Trail. The Select Board approved it in late July after reviewing 54 applications, narrowing the field down to a design from artists Jane Holland and Laura Buscemi.
If you bike or walk that stretch of trail regularly, you already know the tunnel. It's the long, plain concrete underpass where the path dips beneath Powder Mill Road on its way south out of West Concord, roughly 900 square feet of wall that has sat blank since the trail opened there in 2019. What most people riding through it right now don't know is that the tunnel is about to change meaning as much as it changes appearance. For years it marked the end of the line. As of last summer, it doesn't anymore.
A Different Kind of Tunnel
Holland and Buscemi's design was chosen for its scale as much as its subject matter. Graney has described the winning concept as built around a "walk-by scale," meaning the artwork is meant to read clearly to someone moving through at cycling speed rather than standing still to study it. The artists also walked the Select Board through their approach to durability: power-washing the concrete, applying exterior-grade primers and sealants, and making design choices intended to discourage graffiti. The power-washing alone was quoted at around $5,400, funded through the town's remaining ARPA allocation.
One step remains before brushes touch concrete. Because the bridge itself belongs to the state, not the town, the Massachusetts Department of Transportation still has to sign off on the final design, and the town will need to coordinate site preparation and a long-term maintenance plan with the agency. Wall preparation was targeted for September. If you've walked through the underpass this month and noticed scaffolding, hoses, or a crew pressure-washing the concrete, that's the project underway.
None of this would be especially newsworthy on its own. Towns commission trail murals fairly often, and Concord itself has done it before, with a temporary door-painting exhibition further up the trail back in 2020. What makes the Powder Mill Road project different is where it's landing.
The Trail Used to Stop Right Here
For six years, the Powder Mill Road underpass was the literal end of the Bruce Freeman Rail Trail in this part of town. Concord's 2.5-mile section, running from Commonwealth Avenue down to Powder Mill Road, opened in September 2019, and for anyone walking or biking south, this tunnel was where the pavement ran out.
That changed last summer. A new 5-mile southern extension, built as Phase 2D, connects Powder Mill Road to a junction with the Mass Central Rail Trail in Sudbury. The fences came down and the trail opened to public use in June 2025, though the town of Sudbury has been careful to describe it as usable "at your own risk" while a handful of items get resolved, including accessibility upgrades to a parking ramp near Broadacres Farm and invasive species removal along the corridor. An official ribbon-cutting hasn't happened yet. Sudbury's planning department has said it's hoped for later this fall.
So right now, in the fall of 2026, the trail exists in a strange in-between state. It's fully rideable. It just hasn't been formally opened. And the underpass that used to be the terminus is quietly becoming the midpoint of a much longer route, at the exact moment the town is finally giving it a paint job.
What's Actually on the Other Side
If you've never ridden past Powder Mill Road, the new stretch is worth the detour before the weather turns. Heading south, one of the first landmarks is White Pond, visible through the trees to the east. Henry David Thoreau described it as "a lesser twin of Walden," and unlike its more famous neighbor, White Pond still has an undeveloped southern shore reachable by a narrow side path, though the town asks riders to leave bikes on the main trail since the connecting footpaths erode easily.
From there the trail runs through a wetland meadow along Pantry Brook, a tributary of the Sudbury River, before crossing Hudson Road, also known as Route 27, about 5.4 miles south of West Concord. That crossing puts you at the edge of Sudbury's compact town center, with a pizza shop, the town hall, and one of the town's elementary schools within a short walk. The trail itself ends, for now, at what locals call the Sudbury diamond, where it meets the Mass Central Rail Trail near Boston Post Road. That intersection is still technically under construction, but it was already drawing regular foot and bike traffic as of last fall.
None of this was accessible on a single continuous ride two years ago. The Powder Mill Road tunnel was where the options ran out.
Why the Timing Isn't a Coincidence
Public art on a trail is usually a way of marking a place people already pass through. What's happening in West Concord is closer to marking a place that just changed function. The underpass spent six years as an ending. It's now becoming a threshold, the point where an established, well-worn 2.5-mile stretch through Concord hands off to a newer, still-informal 5-mile extension into Sudbury.
The timing lines up with a couple of other changes on the trail that make this moment feel less like routine maintenance and more like the corridor catching up to demand. Minuteman Bikeshare, which started with stations in Concord and Acton, expanded last year into the neighboring towns of Lincoln and Maynard, bringing the system to seven stations total. Three of those docks sit directly along the Bruce Freeman Rail Trail, including one at the West Concord MBTA station, which puts the trail within easy reach of anyone arriving by commuter rail on the Fitchburg Line rather than by car. Between the bikeshare expansion, the new Sudbury mileage, and a mural designed specifically to read well at riding speed, the underpass is being treated less like a leftover piece of infrastructure and more like a gateway worth dressing up.
If you're used to turning around at Powder Mill Road out of habit, this fall is a reasonable time to keep going. The trail south is rideable, the fall meadow along Pantry Brook is worth seeing before the leaves are gone, and the mural project means the tunnel itself is worth a second look, whether that's watching the wall prep happen this month or coming back once MassDOT signs off and paint actually goes up.
Concord has spent years treating this corridor as a work in progress, one phase at a time, dating back to when the original 2.5-mile section opened here in September 2019. The Powder Mill Road tunnel was always going to be a temporary ending. It just took until 2026 for the trail, the town, and the artwork to all catch up to that at once.
If you're weighing what a home near this stretch of trail is actually worth to daily life, not just to a listing sheet, that's the kind of local detail worth talking through. The Nancy Cole Team knows this corridor block by block and is happy to walk you through it, whether you're already riding it every weekend or just starting to picture what that might feel like.