Ductile iron pipe manufactured by American Cast Iron Pipe Company to supply water to the U.S. Capitol in Washington, D.C., in the 1970s.
ACIPCO Water Pipes in Washington, D.C.
![](https://bunny-wp-pullzone-5vqgtgkbhi.b-cdn.net/wp-content/uploads/2023/04/ACIPCO-DC-pipes-edited.jpg)
Courtesy of the American Cast Iron Pipe Company
Appears In
![](https://bunny-wp-pullzone-5vqgtgkbhi.b-cdn.net/wp-content/uploads/2023/04/ACIPCO-DC-pipes-edited.jpg)