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been made in the channel-way since November, 1891, of about 0.8 feet, leaving a depth of water way of 17 feet. Outside the pier-heads the water is fully 18 feet deep below the datum plane.

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18. Racine Harbor, Wisconsin.-The entrance to this harbor originally varied in depth from absolute closure after storms to about 6 feet.

The original project was adopted in 1842 or 1843, and contemplated a channel 12 feet deep. In 1866 the project was modified to provide a channel 15 feet deep.

The project was further modified in 1889, providing for 300 feet extension to the north pier, 500 feet to the south pier, and an increase of channel depth of water to 16 feet.

There has been expended up to June 30, 1891, $263,783.83 in the construction of a north and a south pier 1,460 and 1,070 feet long respectively, and in dredging the channel to 16 feet depth of water.

During the fiscal year ending June 30, 1892, $16,642.71 has been expended in extending the south pier 200 feet (making it now 1,270 feet long), and in dredging the channel restoring it to 15 feet in depth for a width of 80 feet.

Soundings taken in April, 1892, show that 13 feet of water can be carried into the harbor, but to again restore the channel to a depth of 15 feet for a width of 80 feet would require about 13,000 cubic yards of dredging.

The constant shoaling at the entrance to this harbor shows that the piers will have to be extended several hundred feet in order to maintain the intended depth. Some 1,100 feet of the superstructure of the piers should be rebuilt.

July 1, 1891, balance unexpended

June 30, 1892, amount expended during fiscal year

July 1, 1892, balance unexpended.....

Amount appropriated by act approved July 13, 1892

Amount available for fiscal year ending June 30, 1893..

Amount (estimated) required for completion of existing project...... Submitted in compliance with requirements of sections 2 of river and harbor acts of 1866 and 1867.

(See Appendix I I 18.)

$17, 643.88 16, 642.71

1,001. 17 25,000.00

26, 001. 17

39,500.00

19. Kenosha Harbor, Wisconsin.-The original depth of water at the mouth of Pike Creek varied from absolute closure to 3 feet.

The original plan of improvement was adopted in 1852, and was directed to securing a channel 12 feet deep, by constructing parallel piers and dredging between them. This plan was modified in 1866 so as to secure 15 feet of water by extending the piers and dredging deeper. A further modification of the project was made in 1889, providing for the extension of the north pier 300 and the south pier 600 feet.

There was expended upon this harbor up to June 30, 1891, $240,933,05, resulting in the construction of two piers, north and south, 1,600 and 800 feet in length respectively, 150 feet apart, with a channel of varying depth. In 1875 and 1876 the channel was dredged to 15 feet, but subsequent appropriations sufficed only to maintain a channel of about

12 feet. An area of about 3 acres was also dredged in the inner harbor to a depth of 14 feet. Extension of the south pier 150 feet was in progress, under contract, at the close of the year 1891.

Soundings taken in April, 1892, showed an available depth of channel of only 124 feet, with a small bank in mid-channel on which there was but 12 feet of water.

During the fiscal year ending June 30, 1892, $11,674.67 was expended in the extension of the south pier 150 feet and in dredging the channel. At the close of the year the work of dredging the channel to restore it to a depth of 15 feet and a width of 80 feet was in progress. The channel can be maintained only by frequent dredging until the piers are further extended.

July 1, 1891, balance unexpended..

June 30, 1892, amount expended during fiscal year

July 1, 1892, balance unexpended..

July 1, 1892, outstanding liabilities.

July 1, 1892, balance available

Amount appropriated by act approved July 13, 1892

Amount available for fiscal year ending June 30, 1893

Amount (estimated) required for completion of existing project. Submitted in compliance with requirements of sections 2 of river and harbor acts of 1866 and 1867.

(See Appendix I I 19.)

$16, 049. 03 11, 674.67

4,374.36 1, 491. 84

2,882.52

15,000.00

17,882.52

49, 500.00

20. Waukegan Harbor, Illinois.-Previous to improvement there was no navigable channel or natural harbor at this place, the adopted project contemplating the construction of an artificial harbor.

A project was adopted in 1852 which provided for the construction of a breakwater parallel to the shore in 20 feet of water. One crib was placed in position, but was carried away by a storm.

The present project was adopted in 1880, and provides for the construction of an exterior basin of sufficient capacity for local trade by inclosing a portion of Lake Michigan with pile piers, the entrance channel between the piers and the inclosed area to be dredged to 12 feet.

There has been expended on this harbor up to the close of the fiscal year ending June 30, 1891, $124,473.20, resulting in the construction of 2,477 feet of pile pier and the removal of 80,874 cubic yards of material. During the fiscal year ending June 30, 1892, $13,027.07 was expended in building 200 feet extension to north pier, 202 feet extension to south pier, constructing two sand fences 176 feet and 128 feet long respectively, and in beginning the work of dredging the channel and basin to a uniform depth of 12 feet below datum plane. At the close of the year 9,714 cubic yards of material had been excavated.

Soundings taken in April, 1892, showed a narrow channel of 7 feet in depth near the north pier.

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July 1, 1892, amount covered by uncompleted contracts.

7,830. 61

9,000.00

July 1, 1892, balance available.

Amount appropriated by act approved July 13, 1892

Amount available for fiscal year ending June 30, 1893.

3,499.73 25,000.00

28, 499.73

Amount (estimated) required for completion of existing project....... $61, 000. 00 Submitted in compliance with requirements of sections 2 of river and harbor acts of 1866 and 1867.

(See Appendix I I 20.)

21. Fox River, Wisconsin.-The works for the improvement of the Fox River were purchased by the United States from the Green Bay and Mississippi Canal Company in 1872. With the exception of one stone lock, they were all temporary structures and were in bad condition. There was no low-water navigation on the Upper Fox, and on the Lower Fox navigation was uncertain.

The adopted project for the improvement of the Fox River contemplated the replacing of the temporary structures with permanent works, the construction of five additional stone locks on the upper river, and widening and deepening the channels throughout the river and canals. to 6 feet depth and 100 feet width. The estimate for both rivers, made in 1874 and 1876, was $3,745,663.

The work is now carried on under the project of a Board of Engineers, submitted September 17, 1884, published in the Annual Report of the Chief of Engineers for 1885, approved by the Secretary of War December 10, 1885, as further modified by authority of the Chief of Engineers May 14, 1886.

The project provides for the renovation of eleven old locks, and the deepening and widening of the channel of the Fox River from Montello to Green Bay to 6 feet depth and 100 feet width, and that from Portage to Montello 4 feet of water at low water be maintained, the estimate for which was $602,000.

The amount expended on the Fox and Wisconsin rivers from 1867 up to the close of the fiscal year ending June 30, 1891, including $145,000 paid to the Green Bay and Mississippi Canal Company for works of improvement under act of June 10, 1872, was $2,605,090.24, and under modified project for the Fox River $239,689.45, making a total of $2,844,779.69.

The result of the expenditure upon the Fox River was: The construction of 14 new locks of stone; 17 dams, 4 of which are temporary; 12 cut-off's; a head wall and feeder at the old first lock at Appleton; a wing dam of brush and stone for a shore protection to the Portage Levee; a new tugboat and dump scows; dredged channels at Grignon Rapids, mouth of Fond du Lac River, and between De Pere and Green Bay; in the canals, and the Upper Fox River.

During the season of 1891 on the Lower Fox boats drawing 5 feet of water could run from Green Bay to Oshkosh until about August 1, when the mills at Neenah, Menasha, Appleton, and Kaukauna had drawn the water so low below the crests of the dams that there was not over 3 feet of water in the channel, and at times there was a depth of but 6 inches on the breast wall of the Kaukauna first lock. On the upper river, on account of the low water during September, the larger boats were obliged to lay up for the remainder of the season. Navigation was closed by ice November 17, 1891, and resumed on the upper river April 10, 1892.

Under the present project there remain to be done 2,600,000 cubic yards of dredging on the Upper Fox and 50,000 cubic yards of dredging and rock excavation on the Lower Fox.

During the fiscal year ending June 30, 1892, $41,575.61 was expended, and the following work done: Guard gates at head of Kaukauna Canal completed; a channel 75 feet wide and 450 feet long was blasted and excavated through the rock bar below De Pere lock to a depth of from 4 to 12 inches below top of lower miter sill of the lock. The

channel at Grignon Rapids above upper dam at Appleton was deepened to 7 feet below crest of dam except for about 500 feet, where solid rock was encountered, which will require blasting. The channel between De Pere and Green Bay was deepened to 125 feet for a width of from 50 to 60 feet. Dredging was also done in the Neenah Channel, at the mouth of the Fond du Lac River, and at the entrance of Fox River into Lake Butte des Morts.

July 1, 1891, balance unexpended....

June 30, 1892, amount expended during fiscal year

July 1, 1892, balance unexpended..

July 1, 1892, outstanding liabilities.

July 1, 1892, balance available

Amount appropriated by act approved July 13, 1892.

Amount available for fiscal year ending June 30, 1893

Amount (estimated) required for completion of existing project Submitted in compliance with requirements of sections 2 of river and harbor acts of 1866 and 1867.

(See Appendix I I 21.)

$76, 470. 31

41, 575. 61

34, 894.70

1, 156. 41

33, 738. 29 75,000.00

108, 738. 29

271,000.00

22. Operating and care of locks and dams on Fox River, Wisconsin.Under the continuous appropriation for operating and care of canals and other works of navigation, it is proposed to maintain existing navigation by timely repairs to old locks until they are replaced by new, and to continue repairs of works that have already been completed and used, injured by floods or otherwise.

The amount expended under the indefinite appropriation provided by section 4 of the river and harbor act of July 5, 1884, up to the close of the fiscal year ending June 30, 1891, was $377,768.71.

During the fiscal year ending June 30, 1892, $55,989.98 has been expended, the detailed statement appended to the report of the local engineer officer showing the items of expenditure.

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Amount allotted for expenditure in fiscal year ending June 30, 1893.

Amonnt available for fiscal year ending June 30, 1893

(See Appendix II 22.)

$63,998. 29 55, 989.98

8,008.31 6, 176.96

1,831.35 40,000.00

41, 831.35

IMPROVEMENT OF CHICAGO AND CALUMET HARBORS, ILLINOIS, OF CALUMET RIVER, ILLINOIS AND INDIANA, AND OF ILLINOIS RIVER, ILLINOIS; ILLINOIS AND MISSISSIPPI CANAL.

Officer in charge, Capt. W. L. Marshall, Corps of Engineers, with Lieut. Chester Harding, Corps of Engineers, under his immediate orders since May 23, 1892; Division Engineer, Col. O. M. Poe, Corps of Engineers.

1. Chicago Harbor, Illinois.-The present project was adopted in 1870, and contemplated:

a. The formation of an outer harbor or basin, by inclosing a portion of Lake Michigan just south of and adjoining the entrance to Chicago River for the purpose of increasing the harbor facilities of Chicago.

b. The construction of an exterior breakwater in deep water north of the entrance to Chicago River and about 1 mile distant, to shelter the

approach to the river and outer harbor entrance, and to form a harbor of refuge at the southern end of Lake Michigan.

There has been expended upon this project since 1870, $1,710,828.95, which expenditure has resulted in the completion of the outer harbor, except 267,000 cubic yards of dredging still remaining to be done to attain 16 feet depth of water at low water throughout the required basin; in the completion of the exterior break water, 5,413 feet in length; in keeping the entrance to Chicago River, which constitutes the harbor of Chicago, dredged; in maintaining the various piers and breakwaters; and in maintaining in serviceable condition the plant pertaining to the work.

During the fiscal year ending June 30, 1892, the work consisted in: a. Exterior breakwater.-No work was done upon this construction, it having been completed during the previous year.

b. Outer basin and north pier, Chicago Harbor.-Under contract made in the previous year the work of rebuilding superstructure over the easterly breakwater and return and over the north pier was continued and completed; damages caused by collisions to these piers were repaired, and the end of the north pier and the angle at the "return" were protected by pier heads and clumps of piles.

This work included 2,542 linear feet of superstructure 6 feet in height, and 997.8 linear feet of superstructure 8 feet high, making the total work under this contract 5,240.3 linear feet of new structure.

Snubbing posts for the benefit of vessels making up their tows near the mouth of the harbor were also placed at suitable intervals along the north pier.

No dredging has been required during the year.

The superstructures over the southerly breakwater, outer basin, built in 1879-'80, and over 1,225 linear feet south pier entrance to Chicago River, built in 1869-'70, are now in need of renewal, and there should be rebuilt at an early date 3,140 linear feet of superstructure (built in 1881-'82) over the westerly end of the exterior breakwater. There is also material amounting to 267,000 cubic yards still to be dredged from the outer basin to complete the project.

The outer basin has never fulfilled the purposes of its construction on account of the litigation that has existed for many years as to the riparian ownership along the lake front, and the dredging in that basin may well be postponed until the lake front of this basin is in demand for barbor and dock purposes, when the material will be necessary for filling wharves and docks.

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Amount (estimated) required for maintenance, repair, and preservation of superstructures..

Submitted in compliance with requirements of section 2 of river and harbor acts of 1866 and 1867.

(See Appendix J J 1.)

80,000.00

2. Calumet Harbor, Illinois.-This improvement is to furnish a safe and practicable entrance to Calumet River and the port of South Chicago by parallel piers 300 feet apart, extending from shore to deep

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