Castle Gatehouse, Washington Aqueduct

The Castle Gatehouse stands at the Georgetown Reservoir entrance, featuring brick construction and architectural elements that mirror military fortifications.

The U.S. Army Corps of Engineers constructed this water management facility in 1899 as part of their efforts to improve Washington's water supply system.

The structure incorporates design elements from the U.S. Army Corps of Engineers insignia, representing the connection between military engineering and civil infrastructure.

This facility manages water flow through a four-mile tunnel leading to McMillan Reservoir, monitoring water quality through an observation pool system.

The gatehouse contains an iron sluice gate mechanism that controls water flow, allowing maintenance crews to regulate the water supply to Washington DC.

Location: Washington, D.C.

Inception: 1899

Architects: United States Army Corps of Engineers

Made from material: face brick

GPS coordinates: 38.91083,-77.09000

Latest update: March 7, 2025 04:41