Near Oakland in Garrett County, Maryland — The American Northeast (Mid-Atlantic)
The Creation of Deep Creek Lake
Deep Creek Lake 100 Years
| — | 1925 • 2025 | — |
In the early 1920’s, the Youghiogheny Hydro-Electric Company was granted permission to construct 4 dams across Deep Creek and the Youghiogheny River. The purpose was to harness the power of these waterways to generate electricity in support of industrial activities in western Pennsylvania. The Deep Creek Dam was the only one of these ever built. It created its namesake lake, offering wonderful recreational and attractive residential opportunities to many, while still providing an important source of hydroelectric power.
Construction of the dam began in 1923, the lake began to fill in March of 1925, and the power plant commenced operation on May 26 of that year. Preparations included the purchase of some 8,000 acres of farm land, building a 12 mile railroad spur, and establishing a local rock quarry. The roughly 2 year effort engaged over 1,000 workers and cost approximately $9M. The 2 bridges, now known as the 219 bridge and the Glendale bridge, were constructed during the same period.
The dam itself is an earthen structure with a concrete core. It is 1340 feet in length, 86 feet above bedrock, and about 450 feet wide at the base, tapering to about 24 feet at the top. It is designed for a lake water crest level of 2470 feet above sea level. A tunnel of roughly 7000 feet—with a 440 foot vertical drop—delivers water to the power plant turbines and generators.
The creek of the same name—and a number of other streams and creeks—feed the lake. Deep Creek Lake is the largest lake in Maryland. Some “vital statistics” include: it is 11.6 miles long, covering roughly 4000 acres, with approximately 70 miles of shoreline including many coves, and averages a depth of 29 feet. The lake is regarded as full when the surface is at 2,462 feet above sea level.
Since the year 2000, the lake has been owned by the State of Maryland and the hydroelectric power plant has been owned and operated by Brookfield Renewable, US. The lake property includes a “buffer strip” around the shoreline to preserve scenic beauty and natural features (e.g., vegetation, habitat).
Having gone well beyond its original purpose, Deep Creek Lake is a treasure to be enjoyed, protected, and preserved.
(Captions):
Construction of the dam, 1924
Quarry, 1924
Aerial view of the dam, 1990's
The Republican Newspaper, July 3rd 1924
Erected 2025 by Deep Creek Lake Centennial Committee.
Topics. This historical marker is listed in these topic lists: Bridges & Viaducts • Industry & Commerce • Man-Made Features • Waterways & Vessels. A significant historical month for this entry is March 1925.
Location. 39° 31.18′ N, 79° 19.751′ W. Marker is near Oakland, Maryland, in Garrett County. It is at the intersection of Garrett Highway (U.S. 219) and Mountainview Drive, on the right when traveling north on Garrett Highway. Marker is located at a roadside pull-off. Touch for map. Marker is at or near this postal address: 21030 Garrett Highway, Oakland MD 21550, United States of America. Touch for directions.
Regionally, this marker is in the Baltimore Metro Region and in Western Maryland. It is also in the American Mid-Atlantic, in Appalachia, and specifically in Northern Appalachia. Globally, it is in North America, the Western Hemisphere, the Western World, and the Anglosphere. Historically, it finds itself in what was once one of the original Thirteen Colonies.
Other nearby markers. At least 8 other markers are within 2 miles of this marker, measured as the crow flies: Deep Creek Lake (here, next to this marker); Einstein's Visit to Deep Creek Lake (approx. 0.3 miles away); Vintage Log Cabins (approx. 0.8 miles away); The Bridges of Deep Creek Lake (approx. one mile away); The Health of Deep Creek Lake (approx. 1.1 miles away); Deep Creek Lake State Park (approx. 1½ miles away); Deep Creek Lake Discovery Center (approx. 1.6 miles away); Fighting Forest Fires (approx. 1.7 miles away). Touch for a list and map of all markers in Oakland.
Another marker is no longer nearby. Thayer Game Refuge (was approx. 1.2 miles away but has been confirmed missing).
Credits. This page was last revised on June 14, 2025. It was originally submitted on June 14, 2025, by Bradley Owen of Morgantown, West Virginia. This page has been viewed 294 times since then and 51 times this year. Photos: 1, 2. submitted on June 14, 2025, by Bradley Owen of Morgantown, West Virginia.

