Home · New Hampshire · Sulphite Railroad Bridge
Sulphite Railroad Bridge
Merrimack County, New Hampshire
| Item | Of record | Source |
|---|---|---|
| Carries | Railroad bridge | As recorded — see access notes below |
| Coordinates | 43.44536, -71.63573 Google Maps · OpenStreetMap | National Park Service, National Register GIS |
| Historic listing | National Register of Historic Places, listed 1975-06-11 (reference #75000130) | National Park Service |
| How it qualifies | National Register listing verified against the property's nomination (NPGallery federal record), which describes it as a covered bridge | See About & method |
An arson fire on October 27, 1980 burned off this bridge's siding; its charred trusses and roof survive, and New Hampshire continues to classify it as a covered bridge — the only deck-type covered railroad bridge left in the United States, its trains once carried on top of the covered truss. The bridge itself is closed to entry; the Winnipesaukee River Trail passes the site (New Hampshire records).
Access — not verified in federal records
No matching public-road record found in the National Bridge Inventory
This bridge does not appear as a public-road bridge in the federal road inventory — it may stand in a park, on a private or railroad road, or under a record that could not be matched with confidence. Public access is not verified in federal records; confirm locally before visiting.
Source: Checked against the FHWA National Bridge Inventory, 2025 annual file and the National Register record. Checked November 12, 2026.