Kennywood Park
Also known as: Kenny's Grove; Kennywood
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Why it's listed
Kennywood Park occupies about 40 acres on a plateau above the Monongahela River, roughly five miles southeast of Pittsburgh. The Monongahela Street Railway Company began it as a trolley excursion park in 1898, and it opened in 1899 under the first manager, engineer George S. Davidson, whose triangular layout of open-air pavilions around a small man-made lake remains largely intact. The park is regarded as one of the few survivors of the trolley park movement that flourished in the early 1900s in southwestern Pennsylvania. Its significance rests on its surviving rides: John A. Miller's Racer and Jack Rabbit coasters, the 1927 Dentzel carousel with 64 horses, the 1927 Old Mill, and the 1936 Noah's Ark. The nomination treats these as rare examples of early amusement technology, and the park as a record of how American amusement parks adapted to changing trends over several decades.
Significance in brief: The nomination argues the park is one of the few surviving trolley parks and retains rare historic rides, especially its John A. Miller roller coasters, a 1927 Dentzel carousel and early structures from nearly every era of its history. It also states that the park documents the growth of the American amusement industry and has adapted to changing fashions while keeping its popularity.
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 87000824, listed February 27, 1987. Summary generated October 2026 (model claude-haiku-5-5, prompt v1.1-2026-10-29, confidence high).
Key facts
| Address | 4800 Kennywood Blvd., West Mifflin |
|---|---|
| County | Allegheny County |
| Listed | February 27, 1987 |
| Reference number | 87000824 |
| Resource type | District |
| Period of significance | 1898-99 |
| Architect / builder | George S. Davidson (architect); Monongahela Street Railway Company (developer) |
| Areas of significance | Entertainment/Recreation |
| Level of significance | National |
| National Historic Landmark | Yes, designated February 27, 1987 |
| Status (as stated in the nomination) | Open to the public each year from April until Labor Day; more than 35 buildings and amusement structures remain on the site. |
| Acreage | 40 |
| Coordinates | 40.38686, -79.86310 (NPS GIS) |
What listing means for this property
This is a historic district. Buildings within its boundary are either contributing (they add to the district's significance) or non-contributing. Owners of contributing income-producing buildings can claim the 20% federal rehabilitation tax credit; homeowners should look at state credits. National Register districts impose no design review by themselves; a local historic district ordinance, if one exists, does (the difference explained).
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 87000824.
- Nomination form (PDF, National Archives) — catalog entry
- Wikipedia article (used for cross-checking only; text not reproduced here)
- Wikidata Q2028841
- This listing as JSON
Last updated October 2026. Found an error? See the editorial policy for how to report it.