Martin's Mill Covered Bridge
Why it's listed
Martin's Mill Covered Bridge is a wooden queenpost truss bridge spanning Ten Mile Creek in Amwell Township, Washington County, Pennsylvania. The structure measures 72 feet in length and 14 feet 3 inches in width, and it was built in 1888 or 1889 according to the form's differing entries. It replaced an earlier covered bridge that a flood destroyed in 1850. Covered bridges of this type were once common across Pennsylvania, and this example is valued as a clear illustration of vernacular wood construction. Its simple truss design and local detailing reflect the building practices of the rural counties where it stands. The bridge is one of a group of covered bridges in Washington and Greene Counties that together document this construction tradition in the region. Its relatively long span for a queenpost truss also distinguishes it among the surveyed examples.
Significance in brief: The nomination presents the bridge as an important example of vernacular wood bridge technology, a once common bridge type in Pennsylvania. It notes that the bridge replaced an earlier covered bridge destroyed by flood in 1850. The bridges in these rural counties are described as illustrating the type's construction technology through simple truss types and local design features.
Machine-generated summary. This summary was generated by a language model from the official nomination document and has not been reviewed line by line by an editor. It may contain errors. Check the source document before relying on any detail. Source: nomination document (PDF) · National Archives catalog entry. NRHP reference 79003825, listed June 22, 1979. Summary generated October 2026 (model claude-haiku-5-5, prompt v1.1-2026-10-29, confidence low).
Key facts
| Address | W of Marianna crossing Ten Mile Creek, West Bethlehem Township, Marianna |
|---|---|
| County | Washington County |
| Listed | June 22, 1979 |
| Reference number | 79003825 |
| Resource type | Structure |
| Areas of significance | Transportation |
| Level of significance | State |
| Acreage | 0.1 |
| Coordinates | 40.01369, -80.13143 (NPS GIS) |
What listing means for this property
For a publicly owned building or structure, listing mainly matters when federal funds, permits or licences are involved: projects then go through Section 106 review so effects on the property are considered. Listing also strengthens applications for preservation grants and, for leased income-producing uses, can enable the federal rehabilitation tax credit.
General information, not legal or tax advice. Rules change; confirm with your State Historic Preservation Office or a qualified adviser.
Sources and further reading
- National Park Service, National Register of Historic Places database (snapshot May 2026), reference 79003825.
- Nomination form (PDF, National Archives) — catalog entry
- Wikipedia article (used for cross-checking only; text not reproduced here)
- Wikidata Q6774798
- This listing as JSON
Last updated October 2026. Found an error? See the editorial policy for how to report it.