Lake Roland: Baltimore's First Water Works

The lake you're passing near didn't start as a park. It started as survival infrastructure.

In the eighteen fifties, Baltimore was a fast-growing port city with a drinking water crisis. The city had just bought out the private Baltimore Water Company in eighteen fifty-four, and engineers needed a major reservoir to supply a population that was doubling every decade. They chose a narrow gorge carved by Jones Falls north of the city, dammed it, and created an artificial lake of roughly one hundred acres. Construction of the dam and valve house was completed in eighteen fifty-eight under the supervision of Charles Manning, with the lake filling in behind.

What rose on that site was a genuine feat of Victorian public engineering. By eighteen ninety-three the complex included a rock ashlar dam spanning the rocky gorge, a marble-gabled pump house built in the Greek Revival style, a gatekeeper's lodge, and the Lake Roland Elevated Railway, which began carrying passengers from the city out to the new Roland Park neighborhood in eighteen ninety-one. That railway was a Baltimore first: one of the earliest electric elevated lines in the country.

The land itself carried a long industrial history before the reservoir. The city had to buy out a gunpowder mill and a textile factory to assemble the parcel. The site of the Bellona Gunpowder Mill and the Eagle Factory, two emblems of early American manufacturing, vanished under the rising water.

Lake Roland served as Baltimore's primary municipal water supply for more than five decades. Then in nineteen fifteen, engineers discovered a major leak in a key water main, and the city phased the reservoir out of active service. The land was converted to recreation, and eventually to the nature park it is today.

In nineteen ninety-two the whole complex was listed on the National Register as the Lake Roland Historic District, recognized as one of the country's outstanding examples of nineteenth-century public waterworks engineering. The Greek Revival pump house still stands. The dam still crosses Jones Falls. What was once essential plumbing for a thirsty city is now a quiet green corridor for herons and trail walkers.