Dipper dredge working between Delray Beach and Boynton Beach ca. 1910 in what was then called the Florida East Coast Canal. Four long steel posts at each of the four corners anchored the dredge to the bottom of the shallow canal. The A-frame allowed a steel bucket to scoop and scrape the bottom and deposit the spoil on either side of the canal, building up high banks. Courtesy, Florida State Photographic Archives, Tallahassee, Fla.