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STATEMENT A.-Summary of work done, and amounts paid to contractors, for the improvement of the Illinois River, from 1869 to June 30, 1878.

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No. of bars going down stream.

Designation of bar.

Amount of dredging, 1869 to 1878.

Amount paid for dredging.

STATEMENT A.-Summary of work done, and amounts paid to contractors, for the improvement of the Illinois River, from 1869 to June 30, 1878-Continued.

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Feet.

Feet.

Feet.

Feet.

Devil's Elbow

Feet.

42, 298. 5 $10, 468 88

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Bath Chute, entrance to

30, 811.0

7,702 75

100

2.0

Sugar

Creek

1, 200

60

4.0

1877

49, 399, 0

Bars Nos. 1 and 2, head of Grand Island.

12, 349 75

20

1.0

500

110

4.0

1875

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1876

Restoration of channel.

500

150

4.5

1871

2.2

300

150

4.5

1871, '72, '73

800

60

4, 191. 0

1, 173 48

Forestoration of channel.

1876

36, 993

9,155 77

40

2.3

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4, 000

150

1871

50

2.5

3, 100

120

1875

50

1.8

6, 000

150

1872

7,315

34 Gar Island or Naples Flats.

018 20

For restorati on of ch annel.

1876

53, 172

293 00

25

2.0

8, 600

105

1875

22, 596

5,592 51

50

2.3

2,250

1872

12, 183

3,495 24

50

2.5

1,500

1875

20, 456

5,727 68

3.

18,6

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Date of improvement.

Remarks.

(a) Total dredging, 811, 434.9 cubic yards..

(b) Time-work by dredge, snagging, casting on dams, &c., 1,655h 23m.

5,370.7 cubic yards stone, cost.

(e) Brush and stone dams:

3,976 cords brush, cost

26,393 linear feet piles, cost...

Making about 6,000 linear feet

(d) Foundations Copperas Creek lock, cost..

(e) Removing wreck near Peru, cost

Aggregate of amounts paid to contractors, items (a), (b), (c), (d), and

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H. Ex. 87-2

STATEMENT B.

Amounts allotted to, and appropriated for, the improvement of the Illinois River from 189 to 1878, inclusive.

Act approved April 10, 1869, for repairs, preservation, &c., of river and

harbor works, allotted..

Act approved July 11, 1870, appropriated.
Act approved March 3, 1873, appropriated.
Act approved June 23, 1874, appropriated
Act approved March 3, 1875, appropriated..
Act approved August 14, 1876, appropriated.
Act approved June 18, 1878, appropriated

Total from 1869 to June 30, 1878.....

$84.150.00

100,000 00 100,000.00 75,000.00

75,000 0

40,000 00

75.000.00

549.150.00

STATEMENT C.

Statement derived from annual reports, showing total expenditures applied to improving the Illinois River, from the beginning of work in 1869 to June 30, 1878.

Total amount expended from June 30, 1869, to June 30, 1872.
Total amount expended during fiscal year ending June 30, 1873..
Total amount expended during fiscal year ending June 30, 1874.
Total amount expended during fiscal year ending June 30, 1875.
Total amount expended during fiscal year ending June 30, 1876.
Total amount expended during fiscal year ending June 30, 1877.
Total amount expended during fiscal year ending June 30, 1878.

Total expenditures to June 30, 1878.......

This amount is arrived at by the following process: There was allotted from act of April 10, 1869.

There was appropriated July 11, 1870

Total appropriated to June 30, 1872.

$171,601 47

13.9 34

52,796 78

82.796 12 73,434 36

52,067 72 24.490 72

471, 016 61

$84, 150.00 100,000.00

The balance available June 30, 1872, per financial statement, Report Chief of Engineers for 1872, page 281..

Difference assumed as expended......

184,150 00

12,548 53 171,601 47

LETTER OF THE CHIEF OF ENGINEERS.

OFFICE OF THE CHIEF OF ENGINEERS,
Washington, D. C., November 18, 1878.

SIR: In the further prosecution of the improvement of Illinois River, by whatever plan that may hereafter be adopted, more or less dredging will always be necessary, and it would appear from the accompanying report of Capt. G. J. Lydecker, Corps of Engineers, the officer in charge, herewith submitted, that such works will be more economically done with machinery owned and operated by the government.

I beg leave, therefore, to recommend that so much of the appropria tion of $75,000, of June 18, 1878, as may be necessary, be applied to the construction or purchase of requisite machinery, and that the balance be applied to operating expenses and the purchase of materials (brush and stone) for continuing the construction of dams and jetties. The work to be done by hired labor and the materials purchased in open market.

The present time appearing opportune for the consideration of the various improvements on the Illinois River, having in view the preparation of a plan for its permanent and radical improvement, it was deemed

advisable, before taking steps towards the application of the funds now available, to inquire particularly into the present condition of this work. With this view, and by instructions from this office, Captain Lydecker transmitted the report which I now submit, in which he gives a history of the improvements made to the present time, showing what general plan has been adopted and how far the expenditures have been applied to carrying out that plan, and what changes have been found necessary during the progress of the work, &c.

Captain Lydecker's report leads to the conclusion that while a radical improvement might be effected by means of dredging and wing-dams, its cost would exceed the cost of a slack-water system, and the improvement would be less certain and would require considerable annual expenditure for maintenance.

Captain Lydecker appears to be correct in his conclusions, but until the question of continuing the slack-water system below the locks already built by the State of Illinois is sanctioned by Congress, the expenditure of the present appropriation can only be applied, as heretofore, to the continuation of the plan of dredging and wing-dams.

Very respectfully, your obedient servant,

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