| County Bridge No. 171 | |
| U.S. National Register of Historic Places | |
 County Bridge No. 171, 1982 | |
  Show map of Pennsylvania Show map of the United States | |
| Location | Cedar Hollow Road over Valley Creek, Tredyffrin Township, Pennsylvania |
|---|---|
| Coordinates | 40°3′12″N 75°30′3″W / 40.05333°N 75.50083°W / 40.05333; -75.50083 |
| Area | less than one acre |
| Built | 1907 |
| Built by | P.J. McCormick & Sons |
| Architectural style | Stone arch |
| MPS | Highway Bridges Owned by the Commonwealth of Pennsylvania, Department of Transportation TR |
| NRHP reference No. | 88000762 |
| Added to NRHP | June 22, 1988 |
County Bridge No. 171 is a historic stone arch bridge located in Tredyffrin Township, Chester County, Pennsylvania. It spans Valley Creek. It has three spans; the main span is 25 feet long and flanked by two 15-feet long spans. The bridge was constructed in 1907, of coursed rubble with brick arch rings and a contrasting parapet.
It was listed on the National Register of Historic Places in 1988.
References
- ^ "National Register Information System". National Register of Historic Places. National Park Service. July 9, 2010.
- "National Historic Landmarks & National Register of Historic Places in Pennsylvania". ARCH: Pennsylvania's Historic Architecture & Archaeology. Archived from the original (Searchable database) on 2012-10-28. Retrieved 2012-11-02. Note: This includes District 6-0 (November 1982). "Pennsylvania Historic Resource Survey Form: County Bridge No. 171" (PDF). Retrieved 2012-10-08.
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