McMillan Slow Sand Filter Plant (Washington, D.C.)

USA / District of Columbia / Washington / Washington, D.C.
 place with historical importance, abandoned / shut down, interesting place, water supply treatment plant

One of the first municipal filtration plants in the US, this was a slow sand plant that supplied water to DC from its opening in 1905 to its replacement with a modern plant (the large building to the left) in 1985. The site is currently abandoned, despite being declared a DC Historic Landmark in 1991; plans to redevelop the site have not emerged so far.

This plant is interesting because the filter beds are underground, beneath the huge grassy fields in the middle. The silos on the edges were used for storing and washing the sand when the beds were cleaned.
Nearby cities:
Coordinates:   38°55'28"N   77°0'38"W
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This article was last modified 11 years ago