Item 78691 - Boom pier construction, Rumford, 1893 Item 78691 - Boom pier construction, Rumford, 1893 Contributed by Greater Rumford Area Historical Society Item 78691 Zoom 4578px x 2843px - 15.3"w x 9.5"h @ 300dpi | Need a larger size? *Credit line must read: Collections of Greater Rumford Area Historical Society Image Info This image shows a crew building the boom pier on the Androscoggin River, above the upper dam in East Rumford. Boom piers were constructed to separate logs that were being floated down a river to go to the different mills along the Androscoggin river. Show Details