Oldest Dams in Pennsylvania

Pennsylvania has 1246 dams with recorded construction dates. The oldest dates to 1748 — 278 years ago. Many of Pennsylvania's oldest dams were built as colonial-era mill dams, powering early industry along rivers and streams. Older dams require particular attention for safety, as many were built before modern engineering standards.

#	Dam	County	Year Built	Age	Height (ft)	Hazard	Condition
1	Hershey Mill	Chester	1748	278 yrs	14	Significant	Fair
2	Hulmeville Park	Bucks	1800	226 yrs	12	Low	Fair
3	Norristown (swede Street)	Montgomery	1800	226 yrs	12	Low	Satisfactory
4	Heishmans Mill	Cumberland	1815	211 yrs	10	Low	Not Rated
5	Ebenezer	Lebanon	1820	206 yrs	25	Significant	Satisfactory
6	Stoevers	Lebanon	1820	206 yrs	25	High	Fair
7	Chambers	Washington	1820	206 yrs	17	Low	Fair
8	Freethy	Wayne	1820	206 yrs	26	High	Fair
9	Patterson	Beaver	1825	201 yrs	14	Low	Satisfactory
10	Acre Pond	Susquehanna	1825	201 yrs	12	High	Satisfactory
11	Belmont Lake	Wayne	1830	196 yrs	28	High	Poor
12	White Oak Pond	Wayne	1830	196 yrs	26	High	Fair
13	Hankins Pond	Wayne	1830	196 yrs	26	High	Unsatisfactory
14	Lower Tumbling Run	Schuylkill	1832	194 yrs	49	High	Poor
15	Lewis Lake	Susquehanna	1835	191 yrs	15	High	Satisfactory
16	Upper Tumbling Run	Schuylkill	1836	190 yrs	55	High	Poor
17	Lakeside Pond	Susquehanna	1840	186 yrs	12	Low	Fair
18	Pence	Bedford	1842	184 yrs	13	Low	Not Rated
19	Forest Lake	Susquehanna	1842	184 yrs	12	Significant	Satisfactory
20	Dunmore No 3	Lackawanna	1845	181 yrs	14	Low	Fair
21	Kizer Pond (pica Pond)	Lackawanna	1845	181 yrs	9	Low	Satisfactory
22	Lower Woods Pond	Wayne	1848	178 yrs	21	High	Poor
23	Orson Pond	Wayne	1849	177 yrs	16	Significant	Fair
24	Stark	Lackawanna	1850	176 yrs	20	Low	Satisfactory
25	Illicks Mill	Northampton	1850	176 yrs	15	Low	Fair
26	Silver Creek Reservoir	Schuylkill	1850	176 yrs	38	High	Satisfactory
27	Kinneyville Pond	Wayne	1850	176 yrs	20	Low	Satisfactory
28	Keen Lake	Wayne	1851	175 yrs	26	High	Poor
29	Homewood	Beaver	1852	174 yrs	28	Significant	Fair
30	Reservoir No 7	Wayne	1852	174 yrs	13	Significant	Fair
31	Glenburn Pond	Lackawanna	1854	172 yrs	16	High	Unsatisfactory
32	Clear Lake	Crawford	1855	171 yrs	11	Significant	Not Rated
33	Minersville No 3	Schuylkill	1856	170 yrs	31	High	Satisfactory
34	Buehler Lake	Pike	1857	169 yrs	7	Significant	Fair
35	Lake Catalpa	Luzerne	1860	166 yrs	23	High	Fair
36	Big Elk Lake	Susquehanna	1860	166 yrs	12	Significant	Fair
37	Lake Ladore	Wayne	1860	166 yrs	28	High	Satisfactory
38	Page Lake	Susquehanna	1863	163 yrs	17	High	Fair
39	Mill	York	1863	163 yrs	18	High	Satisfactory
40	Bernhart	Berks	1865	161 yrs	30	High	Unsatisfactory
41	Billings Pond	Pike	1865	161 yrs	9	Low	Poor
42	Lake Henry	Wayne	1865	161 yrs	11	High	Fair
43	Elk Lake	Wayne	1865	161 yrs	11	High	Satisfactory
44	Miller Pond	Wayne	1867	159 yrs	25	High	Fair
45	Collins Pond	Wayne	1867	159 yrs	10	Low	Not Rated
46	Upper Castanea Reservoir	Clinton	1869	157 yrs	30	High	Unsatisfactory
47	Lake Sabula	Clearfield	1870	156 yrs	22	Significant	Satisfactory
48	Kunkels	Schuylkill	1870	156 yrs	21	Significant	Poor
49	Fullers Lake	Susquehanna	1870	156 yrs	9	Significant	Satisfactory
50	Perkins Pond	Wayne	1870	156 yrs	20	Significant	Fair

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