vessels in the southern end of Lake Michigan can always run when under stress of weather. The amount expended since 1870 on these works is $1,391,606.21, including outstanding liabilities, and has resulted in the completion of the outer harbor as projected, excepting the dredging of 267,000 cubic yards of material which yet remains to be done in order to attain over the area proposed the requisite depth of 16 feet; also the completion of 4,236 feet of the exterior breakwater which forms the harbor of refuge, with the exception of 400 feet of the superstructure on the easterly end thereof. The work done during the year consisted in placing two courses of superstructure, over 600 feet of crib work, and six courses over 100 feet; replacing several cords of stone that had been washed out of the superstructure at various places during storms; the crib on the east end of the breakwater had been much damaged by vessels and storms, this was repaired; the four cribs that were built during the year ending June 30, 1885, to about their sixteenth course, and had been lying in the outer harbor since that time, were finished and placed in position and filled with stone. Since the commencement of the present working season, May 1, a riprap of stone to a height of about 8 feet has been placed along both sides of these four cribs in order to obtain greater stability and render them less liable to be disturbed by the action of heavy seas. The amount of stone used in the construction and repairs of the exterior breakwater during the year was 3,712.52 cords. About 645 cords of stone were placed in the southerly breakwater during the year. To complete the work of improvement under the existing project, the sum of $240,000 will be required. This amount includes the estimate of $31,000 to repair damage done to the southerly breakwater by storm of December 4, 1885. The officer in charge invites attention to the decayed condition of the superstructure of the whole of the easterly breakwater and a portion of the north pier, being together about 4,738 feet. He estimates that $120,000 could be advantageously expended in replacing these old and decayed superstructures with others made of material of a more durable character. July 1, 1886, amount available.... Amount appropriated by act approved August 5, 1886 July 1, 1987, amount expended during fiscal year, exclusive of $574.95 75,000.00 75, 574.95 $53, 644. 37 54, 600, 84 20, 974. 11 120,000.00 Amount (estimated) required for completion of existing project....... 240,000. 00 Amount (estimated) required for renewing superstructures of the easterly breakwater and a portion of north pier. Amount that can be profitably expended in fiscal year ending June 30, 1889 360,000.00 Submitted in compliance with requirements of sections 2 of river and harbor acts of 1866 and 1867. (See Appendix II 1.) 2. Calumet Harbor, Illinois.-The object of this improvement is to provide a safe and reliable entrance to Calumet River and the port of South Chicago. It is proposed to accomplish this by the construction of two parellel piers 300 feet apart, projecting from the shore to deep 8872 ENG 87—18 water in the lake, and by dredging the channel-way between them to a depth sufficient to accommodate the largest class of vessels seeking the port. The work was commenced in 1870, and at the close of the fiscal year 3,640 linear feet of the north pier and 1,870 feet of the south pier had been completed. The total amount of material dredged from the harbor during this time was 384,376 cubic yards. The work done during the year consisted in extending the south pier 150 feet into the lake, in accordance with the approved project. The amount expended in the execution of this project from 1870 to June 30, 1887, was $391,128.42. This has resulted in making the harbor available for large vessels drawing 14 feet, whereas but those drawing but 7 could with great difficulty enter the river before the improvement began. Additional stone filling is needed in the superstructure of both piers to the extent of about 1,000 cubic yards, and there is yet 150 feet of the south pier to be built in order to complete the projected pier work. When this is done a certain amount of dredging will be from time to time required in order to preserve the harbor. July 1, 1886, amount available Amount appropriated by act approved August 5, 1886.. July 1, 1887, amount expended during fiscal year, exclusive of liabilities outstanding July 1, 1886... July 1, 1887, amount available.... Amount (estimated) required for completion of existing project, and Amount that can be profitably expended in fiscal year ending June 30, 1889 (See Appendix II 2.) $380.47 10,000.00 10, 380. 47 9,508.89 871.58 20, 400.00 20, 400.00 3. Illinois River, Illinois.-The project now in course of execution for the reach of the Illinois River lying between the State lock at Copperas Creek and the mouth, a distance of 135 miles, contemplates the construction of two locks and dams and the dredging of the channel where necessary to secure a depth of not less than 7 feet at low water. The sites selected for the locks and dams are, one at Kampsville, about 30 miles above the mouth of the river, the other at La Grange, 45 miles above Kampsville. These locks are 350 feet long, and 75 feet wide, with 7 feet over miter sills at low water. The ultimate object of this improvement is to provide a channel-way from the lower end of Lake Michigan to the Mississippi River, of sufficient capacity to accommodate large-sized Mississippi River boats; also to enable vessels of war of considerable capacity to pass freely from the Gulf of Mexico into the waters of our northern lakes. The State of Illinois has constructed two locks of the same dimensions as those now in process of construction by the United States, one at Copperas Creek, the other at Henry, thus extending the im provement to La Salle, Ill. At the La Grange Lock two short return-walls were built sloping back to the rear from the land wall. The land in the vicinity of the locksite at this point being below the level of ordinary high water, it is necessary to fill in behind the land wall of the lock to the extent of about 30,000 cubic yards, in order to make the space required for the service of the lock. About half of this filling has been put in place. A keeper's dwelling was built during the year. The timber for the four lock gates was obtained and a contract made for the delivery at the locksite, of the iron and steel necessary for the lock-gates, the head-bay valves, maneuvering gear, etc. A contract was also made for 2,882 cubic yards of the stone required for the Kampsville Lock. The amount asked for the fiscal year ending June 30, 1889, can be expended advantageously upon the locks and dams at La Grange and Kampsville, and in dredging operations. The amount expended by the United States to the end of the present fiscal year in carrying out this project, with the existing liabilities, is $680,633.42, exclusive of $62,359.80 expended on the foundation of the Copperas Creek Lock, which was afterwards turned over to the State. The cost of the locks and dams built by the State of Illinois at Copperas Creek and Henry was $747,747. The improvement of the river from its mouth to La Salle, on a scale sufficient for the accommodation of large-sized Mississippi River steam-boats at low water, is now almost accomplished. Plans and estimates of cost of continuing this improvement to Joliet, Ill., have been submitted to Congress, but no surveys or estimates have been made for continuing the improvement from Joliet to Lake Michi gan. Practicable routes are known to exist. It is suggested that $10,000 be made available for making proper surveys and preparing plans and estimates for this continuation. Since the adjournment of the last session of Congress the legislature of the State of Illinois has passed an act ceding to the United States the locks and dams on the Illinois River at Henry and Copperas Creek. July 1, 1886, amount available ... $4,360.43 112.500.00 Amount appropriated by act approved August 5, 1886 116,860, 43 July 1, 1887, amount expended during fiscal year, exclusive of liabilities outstanding July 1, 1886. $52, 319. 26 July 1, 1887, outstanding liabilities 22, 805.79 75, 125. 05 July 1, 1887, amount available.... 41, 735.38 587,500.00 Amount (estimated) required for completion of existing project.... (See Appendix II 3.) The report of the Board of Engineer Officers constituted to examine, in all their relations to commerce, the Illinois and Michigan Canal, and the proposed Hennepin Canal, with their value and usefulness to navi gation, and to report upon the acquisition and improvement of the Illinois and Michigan Canal and the construction of the Hennepin Canal, was transmitted to Congress January 10, 1887, and printed as House Ex. Doc. No. 79, Forty-ninth Congress, second session. (See Appendix I 1 3.) 4. Calumet River, Illinois and Indiana.-The object of this improvement, so far as at present projected, is to secure a channel 200 feet wide and 16 feet deep from Culumet Harbor, Illinois, to one-half mile east of Hammond, Ind., with the view to increasing the facilities for handling the growing commerce of this region, and also to aid in providing means for the better accommodation of much of the commerce of Chicago, which is now very much crowded in that city. The river and harbor act of July 5, 1884, appropriated $50,000 for the improvement of that section of the river from the harbor to the outlet from Lake Calumet, with the proviso That no part of said sum shall be expended until the right of way shall have been conveyed to the United States free from expense, and the United States shall be fully released from all liability for damage to adjacent property-owners, to the satisfaction of the Secretary of War. Parties directly interested have for some time been actively engaged in securing to the United States the right of way and releases required. The matter is now so far advanced as to be placed in the hands of the United States district attorney for the northern district of Illinois for examination of titles and preparation of the necessary legal papers. Work will be commenced on this section of the river as soon as the requirements of the proviso have been complied with. The river and harbor act of August 5, 1886, appropriated an addi tional sum of $30,000 for the improvement of this river, a part of which was to be used in dredging in the river between the forks and one-half mile east of Hammond. This part was further divided at the State line between Illinois and Indiana. With the funds available from this last appropriation it is proposed to dredge at such points and to such depths in the present recognized channel as will give the greatest relief to the present commerce of the river, these points to be selected, as far as practicable, from those that are within the limiting lines of the proposed new channel-way for the river, care being taken at all times that private property is not trespassed upon. The work during the year was confined to making additional surveys and collecting data that were necessary for the proper protection of the interests of the United States before the actual work of dredging could be commenced. Proposals for doing this work, so far as the funds available will suffice, were advertised for June 28, 1887. As both sections of the river are now included in the proposed improvement, the estimates, therefore, are embraced in one. It is proposed to continue the improvement with $100,000, the amount asked. July 1, 1887, amount expended during fiscal year, exclusive of liabilities outstanding July 1, 1886 .... July 1, 1887, amount available $50,000.00 30,000.00 80,000.00 772.50 79, 227.50 345,000.00 Amount (estimated) required for completion of existing project.... (See Appendix I I 4.) 5. Surveys for Hennepin Canal.-No additional surveys were made. during the year for the Hennepin Canal or expense incurred on account of the appropriation therefor. July 1, 1886, amount available.... (See Appendix II 5.) $633.66 633.66 EXAMINATIONS AND SURVEYS FOR IMPROVEMENT, TO COMPLY WITH REQUIREMENTS OF THE RIVER AND HARBOR ACT OF AUGUST 5, 1886. The required preliminary examinations of the following locality was made by the local engineer in charge, Major Handbury, and reported by him as not worthy of improvement: 1. Farm Creek, Illinois, with a view to changing its course.-(See Appendix II 6.) The required preliminary examination of the following locality was made by the local engineer in charge, Major Benyaurd, and reported by him as not worthy of improvement: 1. Calumet River, Illinois, from the forks of the river near its entrance into Lake Calumet to Riverdale, and also from Riverdale to Blue Island.— (See Appendix II 7.) IMPROVEMENT OF HARBORS ON THE EASTERN SHORE OF LAKE MICHIGAN AND OF GRAND RIVER BELOW GRAND RAPIDS. Officer in charge, Capt. D. W. Lockwood, Corps of Engineers. 1. Charlevoix Harbor and entrance to Pine Lake, Michigan.-The average width of the original channel of entrance was 75 feet; the depth varied from 2 to 6 feet. The present project for its improvement, adopted in 1868 and revised in 1875 and 1876,is to dredge a channel 100 to 150 feet wide, connecting Round Lake with Lake Michigan, to a depth of 12 feet, and to protect both sides with close piling. This was modified in 1876 by substituting crib-work for pile-piers beyond the shoreline in Lake Michigan. An additional modification in 1882 provided for a revetted channel between Round and Pine lakes. The amount expended to June 30, 1886, was $69,981.89 in obtaining a channel of navigable width and about 12 feet depth through from Lake Michigan to Pine Lake, and in revetting both sides of the cut between the latter lake and Round Lake, the length of the revetment being on the north side 339 feet and on the south side 366 feet. The amount expended during the fiscal year ending June 30, 1887, was $738.93, including outstanding liabilities, and resulted in removing 3,360 cubic yards of sand and gravel from lower channel. The available depth for navigation is about 10 feet, the lower chan nel having shoaled up considerably at the harbor entrance. The amount asked for the fiscal year ending June 30, 1889, is to be applied to extending the south pier into Lake Michigan and completing the revetment of channel between Round and Pine lakes, and in gen. eral repairs to piers and plank-beam revetments. July 1, 1886, amount available........... Amount appropriated by act approved August 5, 1886... July 1, 1887, amount expended during fiscal year, exclusive of liabilities outstanding July 1, 1886.... July 1, 1887, outstanding liabilities..... July 1, 1887, amount available..... $1,028. 11 10,000.00 11, 028. 11 $656.93 738.93 10, 289. 18 Amount (estimated) required for completion of existing project... (See Appendix J J 1.) 105, 000, 00 30,000. 00 |