Of other miscellaneous work done in this office, the following may be mentioned:

Plans and estimates were made for the construction of sewers on the following streets: on Vista Street, from Madison Avenue to a sixteen feet alley; on Rebecca Street, from Patterson's Alley to Walker Street; on Dilworth Alley, from Guy Freeborn's line to Cypress Alley, thence along Cypress Alley to Rebecca Street; on Benton Alley, from Pump Alley to Race Street; on Slope Alley, from Coffee Street to Monterey Street, thence along Monterey Street to Ackley Street; on Ackley Street, from Coffee Street to Strickler Alley; on Page Street, from Manhattan Street to Beaver Avenue; on Ohio Street, from Union Avenue to Sandusky Street.

Plans and estimates were made for the grading, paving, curbing, etc., of Federal Street Extension, from the end of the present paving to the Perrysville Plank Road; for the grading, etc., of Federal Lane, from Federal Street Extension to Morris Street; for the grading of Myrtle Street, from Gallagher Street to Sarah Street; for laying an asphalt pavement on Slush Alley, from Federal Street to West Diamond Street.

The gravel measured for the Street Commissioners amounted to 49,984 bushels for the Eastern District, and 40,271 bushels for the Western District.

Various plans for bridging and opening of streets and profiles for changing grades were made, in connection with the crossing of the Pittsburgh, Ft. Wayne & Chicago Railroad over Pennsylvania Avenue, Washington Avenue, Strawberry Lane, Schoonmaker Lane, Leckey's Road, and Verner Road, in order to obviate the danger and delay that teams and foot passengers are put to at these places by the frequent passing of trains.

The construction of the Pittsburgh and Western Railroad, which is still going on, as also the laying of new street car tracks, has required the attention of this office to a great extent. The length of such new passenger railways built during the past year amounted to three miles, thus making the

entire length of street car lines now in operation in our City, thirteen and one half miles.

The topographical map of our City which was commenced about two years ago, is now completed, and a copy on a smaller scale has also been prepared to accompany this report. I think this map, if printed and bound with our annual report, would form a very useful appendix to the same. A topographical map of the City has been a long felt necessity for this office, since a great many questions can not be answered intelligently without the aid of the same. For the now pending question of the extension of the water supply over the hill districts, it will be found to be of the greatest value.

It

may

be in place here to give some items as the result of this work, which I hope will be of general interest.

Our City, including Herr's and Brunot's Islands, contains an area of ground of 4,720 acres (the area of Herr's Island being 41 acres, and that of Brunot Island 159 acres). This area in regard to elevation is classified as follows:

From 0 to 100 feet above City datum, 1,682 acres, or 35.6 per cent.

Thus it appears that fifty-one per cent., or a little more than one half of our entire City is below the line of 200 feet, and nearly the one sixth part above an elevation of 400 feet above City datum. The following table gives the areas of the several wards, also classified as above.

The following gentlemen constitute our present office force:

Mr. E. J. Roberts, Registrar of Deeds and general office clerk ; Charles J. Read, draftsman and assistant in general; Francis Rust, assistant in charge of surveys; David L. Fulton, rodman.

These gentlemen have always performed their several duties faithfully, and, as I believe, to the satisfaction of all that transacted business with this office.

Very respectfully,

CHARLES EHLERS,

City Engineer.