The Water cribs in Chicago supply the City of Chicago with drinking water from Lake Michigan. The first water crib, the Two-Mile Crib was constructed as part of a scheme by Ellis S. Chesbrough in 1865.[2] Water was collected and transported through a tunnel 60 feet below the lake surface to the Chicago Avenue pumping station.[3] This was replaced by the Carter H. Harrison crib in 1900 (located at 41°54′59″N 87°34′23″W / 41.91639°N 87.57306°W), which itself was intended to be replaced by the William E. Dever crib that was built alongside it in 1935.[4] However increased water demand meant that the Carter H. Harrison crib continued in service until 1997.