September 17, 2026
A woman walks her dog down Piper Mill Road most mornings, past the gate to the Great Salt Bay Sanitary District, onto a trail she assumed was a dead end. The path is flat and wide enough for two people to pass shoulder to shoulder, shaded by hemlock and white pine. It used to stop at a brook. Now it keeps going, and if she followed the plan Coastal Rivers Conservation Trust has been building toward for two years, it would eventually connect her back to Main Street, then out along the river to a working saltwater farm about a mile away.
That's the part most residents haven't clocked yet. Round Top Farm, the Whaleback Shell Midden, Salt Bay Farm, and the newer Castner Brook Community Forest have always registered as four separate destinations, each requiring its own parking spot and its own trip. What Coastal Rivers has quietly been doing since 2018 is erasing the space between them. This year is when the last and hardest section is supposed to close.
Round Top Farm, on Route 1 just south of downtown, is Coastal Rivers' headquarters and the anchor of the whole system. From there, an eight-foot-wide accessible trail already crosses the Pete Noyes Preserve to reach the Whaleback Shell Midden State Historic Site, a shoreline deposit of oyster shells left by generations of Wabanaki fishing camps. Head the other direction from Round Top and the trail reaches Church Street, across from Sullivan Tire, a stretch of accessible path Coastal Rivers finished after a Bangor Savings Bank grant covered the cost.
A crosswalk with flashing lights ties Great Salt Bay Community School into the same network, letting students cross Business Route 1 on foot to reach the shell midden, the Damariscotta Farmers Market, and the student gardens at Round Top without a parent driving them.
Then there's Castner Brook Community Forest, the newest piece. Coastal Rivers opened a 950-foot all-persons trail there in the fall of 2025, reached from a trailhead off Piper Mill Road. It runs through a stand of hemlock, white pine, spruce, and balsam fir to the edge of the brook. On the far side sits a one-mile intermediate mountain bike loop that's been finished for a while but sits mostly unused, because there's no way to cross the water to reach it.
And a few miles north on Belvedere Road, Salt Bay Farm offers its own separate network: mown paths through 146 acres of former hayfield along Great Salt Bay, popular enough with birders that the property ranks second on eBird's species-leader list for the region. The Great Salt Bay School cross-country team trains there every fall. Coastal Rivers' Camp Mummichog runs there each summer. In winter, the two hills behind the nature center turn into the closest thing downtown Damariscotta has to a sledding park.
Four places. Four separate reasons to get in the car. That's the part changing.
| Segment | Distance | Surface | What connects to what |
|---|---|---|---|
| Round Top Farm to Whaleback Shell Midden | About 1/3 mile | 8-foot accessible stone dust | Crosses Pete Noyes Preserve to the shell midden |
| Round Top campus to Church Street | Short connector | Same accessible surface | Reaches Church Street across from Sullivan Tire |
| Crosswalk at Great Salt Bay Community School | N/A | Flashing-light crossing | Lets students reach the farmers market and Round Top gardens on foot |
| Castner Brook Community Forest | 950 feet | Flat, hemlock-shaded | Trailhead on Piper Mill Road, ends at the brook |
| Salt Bay Farm loop trails | Several connected loops | Mown hayfield paths, some rocky sections near the shore | Independent network on Belvedere Road, not yet linked to the rest |
Every segment on that table works right now, this month, without waiting on anything. What doesn't exist yet is the piece that would make all five rows into one continuous route.
Coastal Rivers has been trying to link Round Top Farm to Salt Bay Farm along the river for more than twenty-five years. The obstacle was never money alone. It was land. The route crosses seven separate properties and has to pass beneath Route 1.
That changed in November 2024, when Laura and Vanessa Shields-Haas of Damariscotta amended a conservation easement on their land to grant permanent legal access along their stretch of the route. With that signature, Coastal Rivers had cleared the last property needed for the full mile-long corridor. The trust had already secured a Maine Department of Transportation license to run the trail underneath Route 1 at the bridge, bought one of the remaining parcels outright, and received another as a gift from what is now MaineHealth.
Executive Director Steven Hufnagel described the trail at the time as "heavily engineered, built to withstand heavy use over many years," noting the route would need multiple bridges in addition to the underpass below Route 1. He added that construction was expected to start in the summer of 2026, once fundraising caught up with the plan.
That construction window has now come and largely gone, and there's a real signal the fieldwork started on schedule. Coastal Rivers' own page for Salt Bay Farm carries a summer construction note: the east end of Belvedere Road is temporarily closed, with an alternate route posted for visitors trying to reach the property. The trust hasn't announced a finish date, but a road closure at the exact spot where the connector is supposed to terminate is not the kind of thing that happens by coincidence.
Castner Brook has its own unfinished piece. The trust's page for that property states plainly that an accessible bridge and a seating area will be built at the brook crossing sometime in 2026, which is what will finally open the mountain bike loop to walkers instead of stranding it on the far bank. The 6 Rivers chapter of the New England Mountain Bike Association has been pushing for that connection, and Deputy Director Katie Beaver said when the first section opened that residents have consistently asked for exactly this kind of close-to-downtown trail access.
None of this requires waiting for anything to be finished. The segments that exist today are already useful on their own terms. Castner Brook is a genuine woods walk five minutes from Main Street, flat enough for a stroller and shaded enough to matter in July. Salt Bay Farm works as a birding stop, a sledding hill, or a place to let a dog off leash on the mown paths, dogs must stay leashed near the shorebird nesting areas, but the fields themselves see plenty of foot traffic. The Round Top to Whaleback stretch is short enough to do on a lunch break and ends at a shell midden that predates the town itself.
What changes once the connector opens is the shape of a normal week. Right now, visiting all four properties means four separate drives, four separate parking spots, four separate short walks. Once the mile-long river section is finished, someone could park once at Round Top Farm and walk the entire loop out to Belvedere Road on foot, past the shell midden, under Route 1, along a corridor that took a quarter century to secure the land for.
That's not a small thing for a town this size. It's the difference between a scattering of nice trails and an actual walkable system that starts a few blocks from Main Street.
There's no confirmed opening date for the Round Top to Salt Bay connector, and Coastal Rivers hasn't published one. The road closure on Belvedere Road is the clearest evidence available right now that work is underway rather than still pending. The Castner Brook bridge is a smaller build and more likely to finish first, which would open that mountain bike loop for the first time since the trail was cut.
Either way, this fall is a good time to walk what's already there. The hemlock woods at Castner Brook hold their color longer than the open hayfields at Salt Bay, and the shell midden trail from Round Top is short enough to fit into an evening. The rest of the system is coming. Some of it, if that road closure means what it looks like it means, might already be here.
If you're weighing what a property near this kind of trail investment is actually worth, or thinking about what walkable access does for resale in a town like this one, Adrianne Zahner has spent her career in Midcoast Maine watching these details matter more than they first appear to. Let's connect when you're ready to talk specifics.
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