The bridge across the Croton River, which was made in lieu of the one overflown by the water of the river, and the portion of the turnpike also required to be made, are both done, as well as the private road adjacent to the river, and it is expected the Commissioners appointed by the State to judge of this matter, will receive the bridge and roads, as a full substitute for those which our works rendered useless. There is an iron railing and gatekeeper's house, with some other small contingencies, which are estimated at four thousand dollars, to complete all the work at and near the dam. The dam across the Croton River was commenced in January, 1838, and is now all but completed. It is believed to be durable in its character, and possessed of sufficient

strength to resist the Croton, which is, however, a stream occasionally rendered by freshets, very powerful and turbulent. The dam is formed of hydraulic stone masonry, connected with an earthen embankment. The embankment is about 250 feet long, 65 feet high at its extreme height, 250 feet wide at base, and 55 wide at top. This embankment is supported and protected on its lower side by a heavy protection wall 20 feet wide at base. The portion of the dam over which the water flows, together with the abutment and bulkhead adjacent, is of hydraulic stone masonry their united length is ;

105 feet. The width of the sheet of water flowing over the dam is 90 feet, and it is supposed in times of a freshet will be from four to six feet deep it has already in the last ;