Twin Bridges-West Paden Covered Bridge No. 121
Why it's listed
A covered wooden bridge spanning 112 feet, built in the Burr Truss Arch design with four diagonal braces on either side of a central king post. The arch is superimposed on both sides of the truss system, and a metal roof rests on thin wooden ribs laid over the rafters. Portals jut outward at the roof and slant inward at the deck, and one long continuous window pierces each wall. Most of the undergirding beams are wood, with a few horizontal steel reinforcements, and the stone abutments are original apart from minor concrete repairs. Oak, pine and hemlock were the usual lumber. Peter Ent is named as the builder. The bridge is important to the transportation history of Columbia County, where bridges were needed to link growing towns with farms and saw and grist mills. Its engineering is seen as distinctive for the county, which has built no covered bridges in the last half century.
Significance in brief: The bridge is significant for its engineering and transportation role in Columbia County. The nomination notes that covered bridges were built in the county for their practical value in linking towns, farms, and saw and grist mills. It is also described as one of the county's covered bridges whose design and engineering are unique, since no covered bridges have been built there in the last half century.
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 79003179, listed November 29, 1979. Summary generated October 2026 (model claude-haiku-5-5, prompt v1.1-2026-10-29, confidence low).
Key facts
| Address | Off PA 487, Forks |
|---|---|
| County | Columbia County |
| Listed | November 29, 1979 |
| Reference number | 79003179 |
| Resource type | Structure |
| Architect / builder | Peter Ent (builder) |
| Architectural style | Burr Truss Arch |
| Criteria |
|
| Areas of significance | Engineering, Transportation |
| Level of significance | Local |
| Acreage | 0.1 |
| Coordinates | 41.10699, -76.35671 (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 79003179.
- Nomination form (PDF, National Archives) — catalog entry
- Wikipedia article (used for cross-checking only; text not reproduced here)
- Wikidata Q7858086
- This listing as JSON
Last updated October 2026. Found an error? See the editorial policy for how to report it.