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9, belonging to the United States, continue this slack-water to Morgantown, W. Va., a further distance of 14 miles, the distance from Pittsburg to Morgantown being 102 miles.

During the past year 2 lock-keepers' houses were built, the guiding crib below the land wall was raised and extended into the bank, and some minor repairs were made.

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6. Operating and care of Locks and Dams Nos. 8 and 9, Monongahela River. There has been no stoppage to navigation throughout the year. The channel below No. 8, which had become shoal, was deepened by dredging. At Lock 9 the raising of the lock walls was completed. A bar thrown up in the winter against the lower end of Lock 8, obstructing the lower turbine well of the river wall, was removed by one of the United States dredges, and the same boat deepened the channel above and below Lock 9.

The aprons of both dams were injured by floods, but the continued high water made it impossible to repair them. Some minor changes were made in the operating machinery on the lock, which have improved its efficiency.

(See Appendix G G 6.)

7. Purchase of Lock and Dam No. 7, Monongahela River.-The case of The United States vs. The Monongahela Navigation Company for the condemnation of this structure, was heard in the circuit court of the United States for the western district of Pennsylvania in November last, and the value of the work was fixed by the court at $209,000. The navigation company took an appeal to the Supreme Court of the United States, where the matter is now pending.

July 1, 1890, balance unexpended, appropriation for costs of condemnation
of Lock and Dam No. 7, Monongahela River..
June 30, 1891, amount expended during fiscal year

July 1, 1891, balance unexpended

(See Appendix G G 7.)

$3,533.87 3, 431.55

102.32

8. Purchase of Lock and Dam No. 6, Monongahela River.-Under the act of Congress no steps can be taken towards the condemnation of this lock and dam until the United States has acquired title to Lock and Dam No. 7.

Appropriation by act of September 19, 1890

For purchase of Lock and Dam No. 6

For costs of condemnation of Lock and Dam No. 6.

(See Appendix G G 8.)

$162,000 5,000

9. Cheat River, West Virginia.-The object proposed on this river is to remove the rocks that obstruct the floating of timber, in order to bring into market the vast forests that lie on the headwaters of this stream. The length of obstructed river is 30 miles, and it is limited to the lower part of the stream, where it breaks through Laurel Ridge. Four mouths of work has been done, and about one-third of this part of the river has been made passable.

Amount appropriated by act approved September 19, 1890..
June 30, 1891, amount expended during fiscal year..

July 1, 1891, balance unexpended..

July 1, 1891, outstanding liabilities.

July 1, 1891, balance available

(See Appendix G G 9.)

$13,000,00 5, 108. 15

7,891.85 1,408.35

6, 483.50

10. Allegheny River, Pennsylvania.-The work hitherto done on this river has been limited to the removal of rocks, of which there was a vast number in and near the channel, and to the construction of low dams and dikes of crib-work. Much benefit to navigation has resulted. The money thus far appropriated to the improvement of the Allegheny River amounts to $200,000.

The dam at Cornplanter Islands has been nearly completed, and some minor repairs have been made on the dike at Red Bank. Arrangements have been made to build dams at Hickory and at Pithole Island. Injunctions have been obtained against parties encroaching on the Allegheny River within the limits of Pittsburg.

July 1, 1890, balance unexpended ....

Amount appropriated by act approved September 19, 1890.

June 30, 1891, amount expended during fiscal year..

July 1, 1891, balance unexpended.
July 1, 1891, outstanding liabilities..

July 1, 1891, balance available ......

$1,708. 18 20,000.00

21, 708. 18 3, 108.30

18,599.88 835.90

17,763.98

Amount that can be profitably expended in fiscal year ending June 30, 1893 50,000.00 Submitted in compliance with requirements of sections 2 of river and harbor acts of 1866 and 1867.

(See Appendix G G 10.)

11. Dam at Herr Island, Allegheny River.-All the land that seemed to be required for this work on both sides of the river was purchased, and construction was about to begin, when suit was brought in the circuit court of the United States in favor of certain riparian owners who had been supposed to have no claim to compensation; the work of construction has necessarily been held back to await the termination of this suit. Meanwhile the lot purchased on the left bank for a lockkeeper's house has been filled up and the drawings of the work have been carried forward.

In accordance with the request of the authorities of Pittsburg and Allegheny City the Secretary of War has ordered that the dam at Herr Island be made a movable one.

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Amount (estimated) required for completion of existing project...

70, 648. 23

524,500.00

Amount that can be profitably expended in fiscal year ending June 30, 1893 200, 000, 00 Submitted in compliance with requirements of sections 2 of river and

harbor acts of 1866 and 1867.

(See Appendix G G 11.)

12. Ice-harbor at mouth of Muskingum River, Ohio.-The work in hand is the construction of a large lock through Dam No. 1, Muskingum River, in order to permit Ohio River craft to take refuge during ice floods in the pool created by this dam. This lock is also needed to replace Lock No. 1 of the Muskingum River, which had become dangerous and has been torn down.

During the past fiscal year the masonry of the river wall and of half of the land wall was completed, and the remainder of the land wall was finished to half of its intended height. The work yet to be done is the completion of the land wall, the erection of the lower gates of the lock, and the establishment of the valves and operating machinery. It is expected that the work will be completed during the fiscal year. It can not be utilized until a new draw is placed in the railroad bridge below the lock. The owners of this bridge have been ordered by the Secretary of War to construct this draw, but thus far they have not done so.

July 1, 1890, balance unexpended...............

Amount appropriated by act approved September 19, 1890.

June 30, 1891, amount expended during fiscal year

July 1, 1891, balance unexpended

July 1, 1891, outstanding liabilities.

July 1, 1891, balance available

(See Appendix G G 12.)

$287.78 30,000,00

30, 287.78 10, 173. 49

20, 114.29 6, 017. 23

14,097.06

13. Muskingum River, Ohio.-This appropriation is limited by the act to the construction of a new lock at Taylorsville and the repair of the lock at Zanesville. During the fiscal year the excavation of a channel through the rocky bed of the river below the Taylorsville lock was continued. The frequent floods greatly interfered with this work, which is now about one-fifth completed. The lock can not be used by navigation until a new draw is placed in the Taylorsville and Duncan Falls Bridge. The owners of this bridge have been ordered to build this draw, but thus far they have not complied with the order.

July 1, 1890, balance unexpended......

June 30, 1891, amount expended during fiscal year.

July 1, 1891, balance unexpended

July 1, 1891, outstanding liabilities

July 1, 1891, balance available.

(See Appendix G G 13.)

$39, 121.33 3,820.09

35, 301.24 1,805.80

33, 495. 44

14. Operating and care of locks and dams on Muskingum River, Ohio.— As originally improved by the State of Ohio, 11 dams and 12 locks were built on the Muskingum River, furnishing continuous navigation for 91 miles from the Ohio River at Marietta to Dresden, where a connection was made with the Ohio Canal near its middle point, this canal extending from the Ohio River at Portsmouth to Lake Erie at Cleveland. According to old reports from the State board of public works, the locks were built with a length between hollow quoins of 180 feet and a clear width of 36 feet, except the upper lock, between Zanesville and Dresden, which had a length of 120 feet and a clear width of 22 feet. The lifts as reported varied from 8 feet 10 inches to 12 feet 1 inch, but measurements made since the United States took charge show that none of the above dimensions were strictly accurate. The works cost the State of Ohio about $1,500,000.

The lock and dam above Zanesville is now in a state of ruin, but the 75 miles of slack-water between the Ohio River and Zanesville has always been maintained; on this piece of river there are 10 dams, 11 locks, and 5 lateral canals with a total length of 33 miles.

The locks and dams were about worn out when they passed into the hands of the United States, and a general reconstruction was unavoidable. This work was very greatly retarded and increased in cost by the extraordinary rainfall of last summer and autumn, which repeatedly carried away cofferdams and drowned out the work. At the close of the year the reconstruction of Locks 3, 4, and 8 had been completed, but Locks 6 and 7 were yet unfinished. The floods had a very disastrous effect on the dams; Nos. 1, 6, and 8 gave way, and a break took place around the abutment of dam No. 4. The latter has been thoroughly closed, but it was impossible to do anything for the repair of the broken dams.

It is expected that before the close of 1891 the locks will be finished and all breaks repaired. Throughout the year navigation, except some local pool trade, was wholly stopped.

Since the transfer of this work to the United States the sum of $741,863.03 has been expended in reconstruction, operation, and maintenance.

(See Appendix G G 14.)

EXAMINATIONS FOR IMPROVEMENT, TO COMPLY WITH REQUIREMENTS OF RIVER AND HARBOR ACT APPROVED SEPTEMBER 19, 1890.

The required preliminary examination of harbor of Owensboro, Kentucky, on the Ohio River, was made by the local engineer in charge, Lieutenant-Colonel Merrill, and report thereon submitted. It is the opinion of Lieutenant-Colonel Merrill, based upon the facts and reasons given, that this locality is not worthy of improvement. This opinion being concurred in by me, no further survey was ordered. The report was transmitted to Congress and printed as House Ex. Doc. No. 193, Fiftyfirst Congress, second session. (See also Appendix G G 15.)

The required preliminary examination of Tionesta [Creek], Pennsylvania, from the town of Tionesta, to the village of Balltown, with a view to the improvement and the removal of obstructions, was made by the local engineer in charge, Lieutenant-Colonel Merrill, and report thereon submitted. It is the opinion of Lieutenant-Colonel Merrill, based upon the facts and reasons given, that this locality is worthy of improvement. The report of the preliminary examination containing sufficient information to indicate to Congress the probable cost of the work required, no further survey appears to be necessary at this time. The improvement proposed contemplates removal, at an estimated cost of $2,000, of the obstructions which interfere with the rafting of timber and lumber. The report was transmitted to Congress and printed as House Ex Doc. No. 196, Fifty-first Congress, second session. (See also Appendix G G 16.)

The required preliminary examination with a view to improving the Ohio River, between the mouth of Green River, in the State of Kentucky, and the city of Evansville, in the State of Indiana, and confining the waters of the first named river within its present channel, and preventing danger to navigation from any changes therein, was made by the local engineer in charge, Lieutenant-Colonel Merrill, and report thereon submitted. It is the opinion of Lieutenant-Colonel Merrill, based upon the facts and reasons given, that this locality is worthy of improvement.

The report of the preliminary examination, together with report dated November 16, 1887, of a survey of the locality made in compliance with the provisions of the river and harbor act of August 5, 1886, furnishing all the information required by the act of September 19, 1890, and containing sufficient information to indicate to Congress the probable cost of the work required, no further survey appears to be necessary at this time. The work proposed to be done to prevent the Ohio River from making a cut-off through the peninsula opposite Evansville consists in planting a strip of land along the axis of the peninsula with trees, the estimated cost of which is $49,000. The reports were transmitted to Congress and printed as House Ex. Doc. No. 195, Fifty-first Congress, second session. (See also Appendix G G 17.)

IMPROVEMENT OF FALLS OF THE OHIO RIVER, OF WABASH RIVER, INDIANA AND ILLINOIS, AND OF WHITE RIVER, INDIANA; OPERATING AND CARE OF LOUISVILLE AND PORTLAND CANAL.

Officers in charge, Capt. Edw. Maguire, Corps of Engineers, to May 25, 1891, and Major G. J. Lydecker, Corps of Engineers, since that date; Division Engineer, Col. O. M. Poe, Corps of Engineers.

1. Falls of the Ohio River, Louisville, Kentucky.-The general improvement under the present approved project comprises the enlargement of the upper portion of the Louisville and Portland Canal and the enlargement of the canal basin above the new locks.

Enlargement of the upper portion of the Louisville and Portland Canal.The present project was adopted in 1883 and modified in 1890, at which time the estimated cost of completing the work recommended by the Board of Engineers was $710,230.40. It includes a large amount of rock excavation, whereby the canal will be widened to more than double its former width for a length of some 2,300 feet, and a capacious basin or harbor, with a width of 800 feet and length of about 3,200 feet, will be formed in advance of the entrance to the canal. Masonry walls and dams, aggregating 5,850 feet in length, are to close the enlarged canal and basin on the river side. The work is being done by hired labor, with machinery owned by the Government.

The amount expended to June 30, 1891, was $389,612.95, of which $22,039.06 was expended during the last fiscal year. The deduction of this amount from the total cost as estimated by the Board of Engineers in January, 1890, viz, $710,230.40, leaves $688,191.34 as the present estimated cost of completing the project for this portion of the work.

Enlargement of the canal basin above the new locks.-This work was by the river and harbor act approved August 5, 1886, made a part of the general improvement of the Falls of the Ohio at Louisville. The object is to construct a large basin wherein large tows may lie securely while waiting their turn to enter the locks, without interfering with navigation through the canal. The principal elements of work involved are the excavation of about 140,000 cubic yards of earth and rock and the construction of about 5,200 cubic yards of masonry retaining wall. The work is being done by hired labor with machinery owned by the Government, the attempt to do it by contract having proved most unsatisfactory.

The amount expended to June 30, 1891, was $76,850.88, of which $6,059.85 was expended during the past fiscal year. The additional amount estimated as necessary for the completion of this work is, in round numbers, $70,000.

Continued high water during the last fiscal year limited the working

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