CONSTRUCTION OF DAM AT HARTFORD
Source: Report of
Chief of Engineers, U. S.
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This was the first river lock constructed of monolithic concrete in the United States. Plans for the Rough River lock called for the use of common stone masonry in construction, but bids for
furnishing cut-stone were excessive because of limited access to the project site, and Hall (Assistant Engineer William M. Hall) recommended the
substitution of concrete of "imported Portland cement." The Chief of Engineers approved in 1895, and construction of
the concrete lock, with chamber dimensions of 27 feet width, 123 feet length, and 9 feet lift, was completed in 1896,
at a cost of about $85,000. In 1899, three steamboats and a number of small vessels were plying the Rough River to Hartford; they transported
10,883 tons of freight in that year. But 1899 was just about the peak for traffic on the Rough River. The project,
except for its precedent-setting construction method, was a signal failure.
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