Guilford Ground Level Water Tank

Deep beneath the grassy expanse of Guilford Park, hidden from the everyday hustle of Baltimore, lies the Guilford Ground Level Water Tank. It’s a far cry from the ornate fountain and open reservoir that once graced this spot. Let’s rewind to 1888. The city purchased 12 acres of the Guilford estate from the heirs of A. S. Abell. Their vision? An Eastern High Service Reservoir, perched at an elevation of 350 feet, capable of holding 40 million gallons of water. Construction began swiftly, with Messrs. Jones & Thorne at the helm. The reservoir was designed to receive water from Lake Clifton, pumped through a 36-inch pipeline originally used for Gunpowder water. This ensured that the entire area between Huntingdon Avenue and Cold Spring Lane would have a reliable water supply. The Guilford Reservoir, a marvel of engineering for its time, finally opened its gates in 1893. By 1895, it was already supplying an average of 400,000 gallons per day to thirsty Baltimoreans. Old photographs reveal a surprising detail: a beautiful fountain at the reservoir’s center. This tranquil scene, however, underwent a major transformation. Driven by the Environmental Protection Agency’s 2006 mandate to safeguard drinking water, the city launched a project to enclose the reservoir. In 2016, Foundation Test Group discovered the bedrock lay far deeper than initial surveys indicated. This led to innovative solutions, using shorter drilled shafts relying on side shear for support, a move that saved millions. The open reservoir was drained. In its place, two massive 20-million-gallon tanks, each spanning 240 feet in diameter, were constructed. The Guilford Ground Level Water Tank, as we know it today, is a testament to the city’s commitment to providing clean, safe water. The grassy park above provides a peaceful space, a stark contrast to the vital work happening beneath our feet. It’s a modern marvel, discreetly serving Baltimore, much like its predecessor did over a century ago.