The table was spread in a sewer constructed by the city to carry off the surplus water which at different periods of heavy rains had threatened the existence of the place with damaging floods. The name by which this work of engineering is known--the Dry Run Sewer--recalls to many the story of an innocent little stream running through the principal business and residence section of the city, a stream which in its driest day would attract little attention from a passer-by. Unfortunately, however, for the inhabitants the Dry Run has frequently become very wet. Within the past seven years, on three different occasions it has flooded the entire western portion of the city, causing a property loss of many thousands and endangering the lives of the inhabitants. In 1902 it was flooded twice within twenty days. It rose on July 3rd at the rate of ten feet within five minutes, and on July 23rd ambitiously repeated the same perilous feat. The citizens of Waterloo, at the head of whom stood Mr. P. J. Martin, the mayor, now concluded that this recurring danger should be met by heroic measures, and a flood-sewer, twelve feet by twelve feet in width and height, and three thousand four hundred feet long, was planned at a cost of about one hundred thousand dollars. To many the project appeared impossible of completion, owing to the peculiar situation of Dry Run, but the difficulties in the way did not daunt the Iowa engineers. Hundreds of men were put upon the work of excavation and construction, under the charge of contractor William Horrabin, of Iowa City, and the giant structure rapidly took the permanent form which we see in our photographs. Our illustration of the entrance to the sewer unfortunately does not suggest the size of it, but when we say that a man could walk through this sewer easily carrying another upright on his head, we may fairly suggest the height of the arch. Some thirteen thousand barrels of cement and over thirty-two million pounds of sand and rock were used in the construction, and nearly one million cubic feet of dirt were excavated. The side walls of the sewer are vertical for six feet, and the base is at present about fifteen feet below the level of the street. [Illustration: A SECTION OF THE DRAIN-PIPE. _From a Photo._] With the completion of the largest work of the kind ever undertaken by an Iowa municipality, satisfaction took the place of unrest in the feelings of the citizens. The manufacturers were able to leave their places of business without fear of catastrophe behind them, and the residents could now go to bed at night without dread of a flood-warning from the fire bell. In fact, the relief was so widespread that it was deemed fitting by the mayor and aldermen that the completion of the sewer should be signalized by a great banquet, to which the mayors and representative citizens of other towns should be invited. [Illustration: THE TABLE LAID FOR THE BANQUET INSIDE THE DRAIN-PIPE. _From a Photo._]