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Martin's Mill Covered Bridge
Windsor County, Vermont · over the Lulls Brook · built 1881
| Item | Of record | Source |
|---|---|---|
| Crosses | Lulls Brook | National Bridge Inventory, 2025 file |
| Road carried | C3046 | National Bridge Inventory, 2025 file |
| Carries | Vehicle bridge (public road) | As recorded — see access notes below |
| Year built | 1881 | National Bridge Inventory, 2025 file |
| Length | 137 ft | National Bridge Inventory structure length, out-to-out, 2025 file |
| Longest span | 135 ft | National Bridge Inventory, 2025 file |
| Vertical clearance | 8 ft 11 in | National Bridge Inventory minimum vertical clearance over the roadway, as recorded (converted from metres) |
| Coordinates | 43.53231, -72.39586 Google Maps · OpenStreetMap | National Park Service, National Register GIS |
| Historic listing | National Register of Historic Places, listed 1973-08-28 (reference #73000213) | National Park Service |
| How it qualifies | Listed on the National Register of Historic Places as a covered bridge | See About & method |
Access & restrictions — as recorded
Posted for load
| Posting appraisal | Operating rating equal to the maximum legal load |
| Structural operating rating (not the posted limit) | 4.5 metric tons (about 5 US tons) |
| Vertical clearance | 8 ft 11 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.