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Carleton Bridge
Cheshire County, New Hampshire · over the South Brook · built 1869
| Item | Of record | Source |
|---|---|---|
| Crosses | South Brook | National Bridge Inventory, 2025 file |
| Road carried | Carlton Road | National Bridge Inventory, 2025 file |
| Carries | Vehicle bridge (public road) | As recorded — see access notes below |
| Year built | 1869 | National Bridge Inventory, 2025 file |
| Length | 69 ft | National Bridge Inventory structure length, out-to-out, 2025 file |
| Longest span | 60 ft | National Bridge Inventory, 2025 file |
| Vertical clearance | 9 ft 7 in | National Bridge Inventory minimum vertical clearance over the roadway, as recorded (converted from metres) |
| Coordinates | 42.85396, -72.27399 Google Maps · OpenStreetMap | National Park Service, National Register GIS |
| Historic listing | National Register of Historic Places, listed 1975-06-10 (reference #75000121) | 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 |
Access & restrictions — as recorded
Posted for load
| Posting appraisal | Operating rating more than 30% below the maximum legal load |
| Structural operating rating (not the posted limit) | 7.3 metric tons (about 8 US tons) |
| Vertical clearance | 9 ft 7 in |
Source: FHWA National Bridge Inventory, 2025 annual file. Status checked November 12, 2026. The posted limit itself is set by the owning agency and shown on signs at the bridge; it is not a field in the federal record, so it is not printed here. Postings and closures change — obey the signs at the bridge.