Bridge in East Fallowfield Township
Why it's listed
Over Unger Run in East Fallowfield Township, Crawford County, a two-span vehicular bridge of pin-connected steel construction carries traffic across the creek. One span is a through truss and the other a pony truss, both of the Pratt type. The bridge is dated 1894 on the basis of a plaque, and it has a total length of 282 feet and a roadway width of 25 feet. The superstructure rests on steel caissons filled with concrete. The bridge was made by the Wrought Iron Bridge Company, though the designer and builder are unknown. Its flooring was renewed in 1939, its deck in 1975, and a new steel deck was installed in 1982. The nomination regards it as an engineering resource of note because it is a well preserved example of both Pratt truss forms, common in northwestern Pennsylvania, and few bridges in the state show both types.
Significance in brief: The nomination argues the bridge is a well preserved example of two types of Pratt truss bridges, through truss and pony truss, used frequently in the northwestern part of the state. It is described as one of the few nominated bridges in the commonwealth that illustrates both types. The area of significance is engineering.
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 88000825, listed June 22, 1988. Summary generated October 2026 (model claude-haiku-5-5, prompt v1.1-2026-10-29, confidence medium).
Key facts
| Address | LR 20012 over Unger Run, Atlantic |
|---|---|
| County | Crawford County |
| Listed | June 22, 1988 |
| Reference number | 88000825 |
| Resource type | Structure |
| Areas of significance | Engineering |
| Level of significance | State |
| Status (as stated in the nomination) | Altered: new flooring in 1939, new deck in 1975, and new steel deck in 1982; some minor plate weld repairs. |
| Acreage | 0.9 |
| Coordinates | 41.53515, -80.33688 (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 88000825.
- Nomination form (PDF, National Archives) — catalog entry
- Wikipedia article (used for cross-checking only; text not reproduced here)
- Wikidata Q4966350
- This listing as JSON
Last updated October 2026. Found an error? See the editorial policy for how to report it.