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Willamette River..

Tennessee River..

Upper Mississippi River..
Mouth of Mississippi River.
Susquehanna River.
Patapsco River.

Illinois River..

Genesee River

East River...

Great Brewster Island.

St. Clair Flats..

Falls of the Ohio..
Des Moines Rapids...
Rock Island Rapids.
Little Sodus Bay..
Maumee Bay.

Blossom Rock.

$13, 365 00 40,095 00 35, 640 00 64, 350 00 990 00

26,730 00

84, 150 00 1,000 00 178,200 00 24, 750 00 142, 560 00 178, 200 00 178,200 00 133, 650 00 1,000 00 29,700 00 29, 700 00

A summary is submitted herewith, showing the progress made at each of the localities on the works of improvement; amounts of money expended during the fiscal year; amounts available July 1, 1869, for each work, from the several appropriations and allotments; and amounts required to be appropriated, which can be profitably expended during the next fiscal year.

An accompanying appendix contains the reports of the engineers in charge of the improvements.

HARBORS ON LAKE SUPERIOR, AND ON THE WEST AND SOUTH SHORES OF LAKE MICHIGAN.

Officer in charge, Brevet Colonel J. B. Wheeler, Major corps of engineers, having under his orders the following officers:

Captain D. P. Heap, corps of engineers, special superintendent for the harbors of Kenosha, Chicago, Michigan City, and New Buffalo; station, Chicago.

Captain J. W. Cuyler, corps of engineers, special superintendent of the harbors of Superior City, Ontonagon, and Eagle Harbor; station, Ontonagon.

Assistant, W. H. Hearding, special superintendent for the harbors of Marquette, Green Bay, Manitowoc, Sheboygan, Milwaukee, and Racine; station, Milwaukee.

Assistant, W. T. Casgrain, in charge of surveys and preparation of maps and other duties connected with surveys of harbors; station, Milwaukee.-(See Appendix A.)

1. Superior City Harbor, Wisconsin-Lake Superior.-Under the appropriation of 1867 the pier was commenced, starting from Minnesota Point; 768 running feet were built during the fiscal year ending June 30, 1868. During the remainder of 1868, 320 running feet of pier were added, making a pier about 1,100 feet long. The payments for the work exhausted the appropriation. In May, 1869, an allotment of $45,000 was made to be expended upon this harbor. The work was put under contract without delay, and on the 15th of June the first crib on the eastern side was placed, forming the beginning of the pier from Wisconsin Point. A wing dam 178 feet long, of timber filled with brush, slabs, and stone, was built, connecting this crib with the shore. This structure is intended to prevent the current from passing between the crib and Wisconsin Point, and make it flow out between the piers. The little work already

The work

done has had a very beneficial effect upon the channel, both in deepening and straightening it, especially over the outside bar. should not be allowed to remain in an unfinished condition. Appropriated for the improvement of this harbor in 1867. Allotted from appropriation of 1869...

Total....

$63,000 00

45, 000 00

108,000 00

Of which amount there was unexpended on June 30, 1869. $45, 712 85
Amount estimated for completion...
Amount required for next fiscal year

155,300 00 75,000 00

2. Ontonagon Harbor, Michigan-Lake Superior.-The last annual report stated that 449 running feet of pier had been built during the fiscal year ending June 30, 1868. Since that time the pier has been extended 900 feet, making 1,350 feet of pier on the eastern side; 455 piles that obstructed the entrance have been removed, and 270 feet of the western pier repaired and built up. There still remain not less than two, and probably five, sunken cribs in the harbor that must be removed in order to give a safe entrance to vessels sailing to and from this p ace. A contract has been made with E. F. Prince to remove these cribs for the sum of $3,000, but this work is not begun, as the unexpended balance is required for repairing the west pier and deepening the channel.

There was appropriated in 1867 for the improvement of

this harbor.

Of which amount there was on hand June 30, 1869..
Amount estimated for completion..

Amount required for next fiscal year.

$97,600 00 9, 731 94 238, 780 00 80, 000 00

3. Eagle Harbor, Michigan-Lake Superior.-A contract was made on the 10th of August, 1867, with David Quinn, of Chicago, to remove this rock at the rate of fifty-eight dollars ($58) per cubic yard, the work to be completed on the 1st of October, 1868. Mr. Quinn failed in his work. A special report, giving all the facts in the case, will be found in Appendix A 1. After due notice given a contract was made on the 26th of January, 1869, with George W. Townsend, of Boston, for removing this rock at the rate of forty dollars ($40) per cubic yard. Work was commenced early in June, and during that month seventy-three cubic yards were removed. The contractor was sanguine of success and hoped to make rapid progress towards completion this season.

There was appropriated in 1867..

Of which amount there was on hand on the 30th of June, 1869....

Amount estimated for removal of rock alone, (see report of 1868).....

Amount required for next fiscal year..

$65,000 00

44, 253 33

195,588 00 100, 000 00

4. Marquette Harbor, Michigan-Lake Superior.-There had been finished on the 30th of June, 1868, the date of the last annual report, 310 running feet of breakwater. During the past fiscal year 450 feet have been built, making 760 feet in all. This amount being all that was required of the contractor, the work was re-advertised and let to the lowest bidder, viz: Hart & Jennings, of New York, who are under bonds to build not less

than 200 feet during the present season. This will make 960 feet, or nearly one-half of the proposed work. The effect of this breakwater is sensibly felt in heavy weather, and it is to be hoped that greater efficiency may be given by adding to the pier during the year 1870.

There was appropriated in 1867..

There was allotted from the appropriation of 1869.

Total....

$85,000.00 27,000 00

112, 000 00

Of which amount there was unexpended on June 30, 1869. $56,074 05
Amount estimated for completion..
Amount required for next fiscal year.

273, 130 00 91, 000 00

5. Green Bay Harbor, Wisconsin-Lake Michigan.-The work of the past season has been entirely confined to excavating the new cut, and the amount of material removed, measured in scows, during the fiscal year ending June 30, 1869, numbers 77,822 cubic yards. A second dredging machine has been hired to begin work by the middle of August, 1869. The two machines, with favorable weather, should be able to finish the cut this season. Contracts were made with Smoke & Schuette, of Manitowoc, who were the lowest bidders, for protecting the cut through Grass Island by close piling. It is proposed to build about 600 feet of this protection work this season and notice the results. It may be possible, judging from the action of the water during the past two years, that no further protection will be required. If such should not be the case the estimate for completion must be increased in amount. There was appropriated for the improvement of this harbor in 1866..

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$30,500 00

45, 000 00

17, 500 00

45, 000 00

Of which there was unexpended on the 30th of June, 1869..
Original estimate of completion

Required for completion and for the next fiscal year...

138,000 00

$56,526 87 155, 416 77 17,500 00

6. Manitowoc Harbor, Wisconsin-Lake Michigan.-On the 30th of June, 1868, the condition of the work done was as follows: 866 lineal feet of pier on the north side in a finished state, 416 feet of pier on south side built to the surface of the water, and 130 feet of close piling forming connection with the shore and inner end of north pier. During the fiscal year ending June 30, 1869, 64 feet were added to the north pier, 320 feet added to the south pier, the pier built to the surface of the water, as reported, was finished, and 33,064 cubic yards of material removed from the channel. The whole pier work on the 30th of June, 1869, is as follows:

New work on north side, running feet...
Repairs of old work, north side, running feet.
Close piling, joining the shore, running feet.
New work on south side, running feet..

Total running feet......

864

66

130

736

1,796

Contracts have been made for prosecuting the work vigorously to the extent of the means in hand, and 64 feet of pier, built to the water's surface, have been added to the south pier. It is expected that 200 feet will be added to this pier this season, and that the channel will be opened to the depth of 12 feet.

There was appropriated for the use of this harbor in 1866. $52,000 00
Appropriated in 1867...

Allotted from appropriation of 1868.
Allotted from appropriation of 1869.

Total...

Of which there was unexpended June 30, 1869..
Original estimate of completion

45, 000 00 17,500 00

18, 000 00 132,500 00

$20,261 65 141,747 82

In this estimate the amount for dredging was too small, and no allowance was made for repairs upon the old work that had to be made in order to secure the new work. Supplying this deficiency the estimate of the amount for completion and required for use during the next fiscal year should be $31,000.

7. Sheboygan Harbor, Wisconsin-Lake Michigan.-The work of 1868 was confined to supplying the ballast that had settled in the cribs and dredging in the channel between the piers and entrance to the harbor, amounting to 148 cords of stone for the cribs, and removing 9,034 yards of earth and sand from the channel. A contract has been made with H. Barrett, of Sheboygan, to place this season not less than five cribs in extension of south pier. This will be done unless prevented by causes not now foreseen.

There was appropriated in 1866 ..

There was appropriated in 1867

Allotted from appropriation of 1869..

Total

Of which there was unexpended on the 30th of June, 1869.
Amount of estimate in 1868....

Amount required for next fiscal year to complete the work
recommended...

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8. Milwaukee Harbor, Wisconsin-Lake Michigan.-During the past year 200 running feet of pier work was added to the north pier and 100 feet to the south, making 300 feet in all. Two dredging-machines were employed in the fall of 1868 to deepen the channel over the bar at the entrance, being employed thirty-five days. This season the city authorities have employed the dredges to continue the work and also to dredge between the piers. It is proposed to add 50 feet to the north pier and 150 feet to the south pier, 200 feet in all, this season. This can be built with the balance on hand. This harbor was mainly built by the city authorities during the years 1854, 1855, 1856, and 1857, and the necessity for a renewal of a great portion of the structure above water, at no far

distant day, is apparent. In the following estimates $10,000 are included for this purpose:

There was appropriated for the improvement of this harbor

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Of which amount there was unexpended on June 30, 1869.

The amount required to complete the improvement recom

mended in previous report. For repairs of old work... Required for next fiscal year.

$51, 774 08

$44,000 00 10, 000 00 54, 000 00

9. Racine Harbor, Wisconsin-Lake Michigan.-During the fiscal year 96 feet were added to the north pier, and the entire north pier, left unfinished, was built up. Work was commenced this season to repair the old south pier and dredge the channel between the piers. These repairs consist in tearing away the rotten timbers above the surface of the water, replacing them by new ones, and sheath-piling the outside of each crib to prevent the flow of sand through the intervals into the harbor. This will be completed this season, and if the south pier could be carried out as far as the north pier there is reason to believe this harbor would remain in good condition until the lake-drift or accretion again becomes troublesome.

There was appropriated for the improvement of this harbor

⚫ in 1866...

Appropriated in 1867..

Allotted from the appropriation of 1869.

Total...

Of which amount there was unexpended on the 30th June, 1869....

Amount required for completion..

$23,910 00 45, 000 00 22,500 00

91, 410-00

$27,059 89 40, 000 00

Which could be used next fiscal year. This estimate of completion is to carry out the south pier equal in length to the north pier.

10. Kenosha Harbor, Wisconsin-Lake Michigan.-The engineer in charge does not recommend a further extension of the piers for this harbor, and makes no estimate for this purpose. An estimate of $20,000 for repairs of old work and $35,000 for dredging was made in the annual report of 1867. This recommendation is renewed, and the amount required for the next fiscal year is $40,000. The end crib of north pier, after being placed in 1867 and accepted, was moved from its position during a heavy gale. Before paying the contractors in full they were required to build this up so as to have the surface on the same level with the remainder of the pier. This they did in the past fiscal year by driving piles, joining the displaced crib and the main pier, and building on the piles a superstructure conforming in general appearance to the rest of the work. The ice and waves carried this additional work away during the past winter. It is now proposed to take out the stone, lift the crib from its present bed, and, if it be uninjured, to replace it in its original position; if it cannot be replaced, to remove it entirely, or enough of it so that it shall present no obstruction to navigation. This will be done

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