Merkel Mill
Why it's listed
Built of stone on the banks of Maiden Creek, the Merkel Mill is a banked 2 1/2-story gristmill with a basement and a slate gable roof. George Merkel's original mill burned in 1875 and was rebuilt by his estate as a merchant mill. In 1885 Jacob K. Spang remodeled it with roller machinery, allowing output of twenty-five barrels of flour a day. The mill is regarded as one of the first in Berks County to adopt roller milling. Its architecture, with added storage floors, larger windows and a hoist hood above the entry, is typical of the county's merchant mills of the period. The site includes a dam, a 100-foot headrace, a segmented stone arch and a tailrace, and the watercourses still carry water to the mill. The mill supplied flour to ironworkers and ground animal feed in later years.
Significance in brief: The nomination argues the mill is important for its association with the county gristmill industry between 1875 and 1939, and as one of the first Berks mills to adopt roller milling technology. Architecturally it is presented as representative of classic Berks County merchant mills of the period, with added storage floors and larger windows. Its water power system is described as exceptionally fine.
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 90001625, listed November 8, 1990. Summary generated October 2026 (model claude-haiku-5-5, prompt v1.1-2026-10-29, confidence high).
Key facts
| Address | Dreibelbis Station Rd. at Maiden Cr., Greenwich Township, Lenhartsville |
|---|---|
| County | Berks County |
| Listed | November 8, 1990 |
| Reference number | 90001625 |
| Resource type | Building |
| Period of significance | C 1875 to 1939 |
| Architectural style | Banked vernacular style |
| Criteria |
|
| Areas of significance | Industry, Architecture |
| Level of significance | Local |
| Status (as stated in the nomination) | In use as living quarters for a family on the second floor; the last operating miller ceased operating in the 1950s. |
| Acreage | 2.3 |
| Coordinates | 40.57020, -75.87980 (NPS GIS) |
What listing means for this property
For an income-producing building, listing (individually or as a contributing building in a district) is the gateway to the 20% federal rehabilitation tax credit on qualified rehabilitation costs, often stackable with state credits. Work claiming the credit must follow the Secretary of the Interior's Standards and be approved in advance.
Listing does not restrict a private owner acting without federal money or permits; where federal funding or licensing is involved, Section 106 review applies.
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 90001625.
- Nomination form (PDF, National Archives) — catalog entry
- Wikipedia article (used for cross-checking only; text not reproduced here)
- Wikidata Q6819618
- This listing as JSON
Last updated October 2026. Found an error? See the editorial policy for how to report it.