Page:Historic highways of America (Volume 13).djvu/217



The lockage in the central division between Columbia and Hollidaysburg was 747¾ feet; it was forty feet wide at the top, twenty-eight feet at the bottom, and was four feet deep. The dams numbered eighteen; there were thirty-three aqueducts and one hundred and one locks, including guards; those between Columbia and Duncan's Island were 90 x 17 feet; the remainder 90 x 15 feet. About sixteen miles on the Juniata was slackwater navigation in 1834. The western division was the same in width and depth as the central; the lockage from Johnstown to Pittsburg was 471 feet. On this division there were sixty-four locks, 90 x 15 feet, ten dams, two tunnels, sixteen aqueducts, sixty-four culverts, thirty-nine water weirs and one hundred and fifty-two bridges; 21¼ miles was slackwater navigation. The cost of the central division was $5,307,253.26; the Juniata Valley portion costing $3,570,016.29. The western division cost $3,096,522.30; making the