much injured as to expose the docks and elevator on the lake-shore to serious damage. To secure these as far as possible, the balance of the appropriation of June 10, 1872, was expended in building a riprap wall of heavy stone exterior to the breakwater near the shore, and rebuilding the work behind it. So far this wall has answered the purpose for which it was intended, but the breakwater remains in a ragged state. In compliance with a resolution of the Senate of December 16, 1872, a communication was transmitted from this office submitting a plan and estimate for reconstructing and strengthening this breakwater, but in view of the appropriation made for the improvement of the inner harbor no estimate is sumbitted for this work. (See Appendixes A 1 and A 2.) 2. Superior City Harbor, Lake Superior, Wisconsin.-From July 1, 1862, to close of working season, the Wisconsin pier was extended 642 feet; the channel deepened by the action of the current, the material composing the bottom being loosened by the use of a scraper. (See Appendix A 1.) A special survey of the Bay of Superior was made in 1872, at the request of the governor of Wisconsin, to determine generally whether the Du Luth Canal had been detrimental in any way to the harbor of Superior City. It was ascertained that no injury had been done and that the channel between the piers at Superior entry had continued to deepen, but that a still greater deepening would in all probability have taken place if the entire discharge of the Saint Louis River in high water had been confined to the entry. (See Appendix A 5.) 3. Dredging Bay of Superior and preserving entrances thereto.-The piers of Superior City entrance having been extended to the proposed distance, during the present year the superstructure of the piers will be completed and the channel between them deepened to 13 feet. A channel will also be dredged from the deep waters of the bay to the dock at Superior City, and some dredging and repair of piers may be necessary, for which $10,000 is asked. An opening was made through the dike allowing the passage of ferry-boats between Superior City and Du Luth. To repair the dike will cost $55,000. A contract has been made for the repair of the piers of the Du Luth Canal, which work will be finished during the present season." A great deal of dredging is necessary to make a harbor at Du Luth and a channel between Du Luth and Superior City. The appropriation of $100,000 made by act of March 3, 1873, was distributed as follows: 1. Completing the piers at the natural entrance to Superior Bay. 2. Dredging between the piers at the natural entrance.. 3. Dredging from natural entrance to docks at Superior City. 4. Repairing piers at Du Luth entrance... 5. Dredging between piers at Du Luth entrance and from the piers to the docks of Du Luth.. 6. Opening through the dike and protecting the same. $25,000 00 11,340 00 12, 000 00 19,500 00 16, 400 00 5,000 00 Leaving a balance of $9,000 applicable to any contingencies which may arise. Amount on hand July 1, 1872: Account of Du Luth Harbor.... $54,065 28 Account of Superior City Harbor... 58,386 73 Amount appropriated by act of March 3, 1873, to dredging out Bay of Supe rior to docks of Superior and Du Luth, &c..... 100, 000 00 Amount expended during fiscal year ending June 30, 1873............. Balance available July 1, 1873..... 212, 452 01 94, 158 81 118,293 20 Amount required for maintenance of Superior City entrance. * Amount required for dredging in Bay of Superior. Amount required for repair of dike.... Total required for fiscal year ending June 30, 1875.... (See Appendix A 1.) $10,000 00 10,000 00 100, 000 00 55, 000 00 175,000 00 4. Improvement of Ontonagon Harbor, Michigan-There has been no work done at this harbor during the last fiscal year, no appropriation having been made since 1870. Some work is very necessary if the harbor is to be made one of use to the general commerce of the lakes. The old pile-work should be repaired and extended inward, which would cost $15,000. The west pier should be extended 1,300 feet, and the east pier 775 feet, which would cost $142,700. This harbor is a very important one as a harbor of refuge, as it is the only harbor on a long stretch of coast. Amount on hand July 1, 1872 Amount expended during fiscal year ending June 30, 1873. (See Appendix A 3.) $553 22 553 22 150,000 00 5. Improvement of Eagle Harbor, Michigan-No work has been done during the last fiscal year. A channel should be excavated through the rock at the entrance to the harbor to a depth of 14 feet below low water and 130 feet wide, the cost of which will be about $168,000, and the cost of building the proposed breakwater to cover the anchorage-ground will be not less than $80,000. The work of rock-excavation should be done by hired labor. The amount on hand July 1, 1872, was.. Amount expended during fiscal year ending June 30, 1873 Amount available July 1, 1873 Amount required for fiscal year ending June 30, 1875. (See Appendix A 4.) $24,808 68 24,808 68 150,000 00 HARBORS ON LAKE SUPERIOR EAST OF KEWEENAW POINT, AND HARBORS ON THE WEST AND SOUTH SHORES OF LAKE MICHIGANIMPROVEMENT OF THE FOX AND WISCONSIN RIVERS. Officer in charge, Maj. D. C. Houston, Corps of Engineers, with Capt. J. W. Cuyler, Corps of Engineers, under his immediate orders. 1. Marquette Harbor, Lake Superior, Michigan.-During the year the breakwater was extended 150 feet by sinking three cribs, each 50 feet long and 30 feet wide. Two violent storms occurred in September and November, 1872, interrupting the work and washing out large quantities of stone. The effect of these storms showed the necessity of protecting the foot of the breakwater by riprapping. It is proposed this season to add one more crib to the work; to complete the superstructure over all except the last two cribs; to cover the entire work with a plank decking; and to riprap the exterior of the work as far as the funds will permit. The breakwater will then be 1,960 feet in length, all complete except the superstructure over the last 100 feet and its riprapping. It is proposed to extend the breakwater 50 feet, to complete the superstructure 150 feet, and to put in the additional riprapping necessary for the security of this part. Amount available July 1, 1872.. $66,313 26 Amount appropriated by act of March 3, 1873.. 15,000 00 Amount expended during the fiscal year ending June 30, 1873, (including $2,373.83 retained from payment to contractors). 43,885 02 Amount available July 1, 1873 37,428 24 Amount required for fiscal year ending June 30, 1875... (See Appendix B 1.) 35,000 QO 2. Menomonee Harbor, Michigan and Wisconsin.-During the year the north pier was commenced and extended 719 feet, and the south pier extended 197 feet. During the present season 350 feet will be added to the north pier and 480 feet to the south pier, exhausting the available funds. It is proposed to extend the piers out to a depth of 16 feet, and to excavate a channel between them so as to admit vessels of all classes. Amount available July 1, 1872 $.7,621 52 Amount appropriated by act of March 3, 1873... 25,000 00 Amount expended during the fiscal year ending June 30, 1873, (including 3. Green Bay Harbor, Wisconsin.-No work was done at this harbor during the last fiscal year. An appropriation of $20,000 was made at the last session of Congress and is now being applied to deepening and straightening the channel from the mouth of the Fox River to the "cut" through Grassy Island. The funds will be expended this present season. Amount available July 1, 1872.... Amount appropriated by act of March 3, 1873. Amount expended during the fiscal year ending June 30, 1873. Amount available July 1, 1873... Amount required for fiscal year ending June 30, 1875.. (See Appendix B 3.) $460 77 20,000 00 734 77 19,726 00 25,000 00 4. Harbor of refuge at the entrance of the Sturgeon Bay Canal.-The appropriation of $40,000 made at the last session of Congress is being expended in the construction of two piers in accordance with the general plan indicated in the annual report from this office for 1872, page 171. It is expected that not less than 600 feet of each pier will be completed the present season, exhausting the appropriation. It is estimated that the additional sum of $120,000 is required to complete these piers and excavate the channel between them. Amount appropriated by act of March 3, 1873,.. Amount expended during the fiscal year ending June 30, 1873.. Amount available July 1, 1873.... Amount required for fiscal year ending June 30, 1875... (See Appendix B 4.) $40,000 00 64.00 39,936 00 60, 000 00 5. Ahnepee Harbor, Wisconsin.-During the year the north pier has been extended 276 feet, and will be further extended 160 feet by the close of the season of 1873, so that there will be completed by that time 352 feet of north pier and 576 feet of south pier. A powerful dredge and two scows have been constructed for this harbor and for Two Rivers Harbor. To make this harbor available requires the extension of the pier and. the excavation of a channel from the lake to the river. No appropriation was made for this harbor at the last session of Congress. Amount available July 1, 1872... Amount available July 1, 1873.... Amount expended during the fiscal year ending June 30, 1873. Amount required for fiscal year ending June 30, 1875.. (See Appendix B 5.) operations at 6. Two Rivers Harbor, Michigan.-During the year the this harbor have consisted in the extension of the piers. By the close of the present season the east pier will be completed for a total length of 900 feet, being an extention of 480 feet; and the west pier 965 feet, being an extension of 549 feet. The dredge belonging to this harbor and that of Ahnepee is now employed excavating the channel between the piers, and it is expected that vessels of light draught will be able to use the harbor this fall. Amount available July 1, 1872. Amount appropriated by act of March 3, 1873. Amount expended during the fiscal year ending June 30, 1873. Amount required for fiscal year ending June 30, 1875.. $28, 284 49 25, 000 00 31, 177 43 22,107 06 50,000 00 7. Manitowoc Harbor, Wisconsin.-The work during the year has consisted in putting on the superstructure over the cribs sunk in 1871, for a length of 96 feet on each pier, and in protecting the piers by guard-piles. An appropriation of $20,000 having been made at the last session of Congress, this amount will be applied in further extention of the piers. The work is now in progress. Amount available July 1, 1872. Amount appropriated by act of March 3, 1873. Amount expended during the fiscal year ending June 30, 1873. Amount available July 1, 1873... Amount required for fiscal year ending June 30, 1875.. (See Appendix B 7.) 30,000 00 8. Sheboygan Harbor, Wisconsin.-During the year the superstructure was completed over the cribs sunk in 1871, and each pier was extended 50 feet. Five thousand cubic yards of material were removed from the channel, which is now over 12 feet in depth. The amount appropriated at the last session of Congress, $10,000, is being applied to repairs of the old superstructure. To put this harbor in good condition will require the completion of the superstructure over 50 feet in each pier, protection to the heads of piers, dredging in the channel to obtain a depth of 16 feet, and additional stone-filling in old work. Amount available July 1, 1872.. Amount appropriated by act of March 3, 1873.. Amount expended during the fiscal year ending June 30, 1873.. Amount available July 1, 1873.... Amount required for fiscal year ending June 30, 1875.. (See Appendix B 8.) $23, 229 75 10,000 00 5,722 86 27,506 89 20,000 00 9. Port Washington Harbor, Wisconsin.-The operations during the year have consisted in removing about 14,000 cubic yards of material in the basin and between the piers. During the present season each pier will be extended 100 feet, and the excavation of the basin and revetment of its sides will be continued. The funds will be exhausted the present season. Vessels drawing nine feet can now enter the harbor. Amount available July 1, 1872... Amount appropriated by act of March 3, 1873. Amount expended during the fiscal year ending July 30, 1873.. Amount available July 1, 1873..... Amount required for fiscal year ending June 30, 1875.. See Appendix B 9.) $16,564 01 15,000 00 9, 121 23 22,442 78 50,000 00 10. Milwaukee Harbor, Wisconsin.-During the season of 1872, the superstructure was completed over the piers and essential repairs were made to the old work. The appropriation made at the last session of Congress is now being applied to dredging the channel to a depth of 16 feet. This work will be completed the present season. No estimate is submitted for this harbor. In the course of a few years it will be necessary to replace the old superstructure, when an estimate for a masonry superstructure will be submitted. Amount available July 1, 1872.. Amount appropriated by act of March 3, 1873. Amount expended during the fiscal year ending June 30, 1873. (See Appendix B 10.) 11. Racine Harbor, Wisconsin.-The superstructure over the south pier was completed in 1872. During this season the north pier will be extended 100 feet, and about 18,000 cubic yards of material excavated in the channel. It is proposed to extend the north pier 50 feet farther and to continue the dredging in the channel, which will put this harbor in excellent condition. Amount available July 1, 1872... $4,164 77 Amount appropriated by act of March 3, 1873... 20,000 00 Amount expended during the fiscal year ending June 30, 1873. 4,252 77 Amount available July 1, 1873.... 19,912 00 Amount required for fiscal year ending June 30, 1875. 15,000 00 (See Appendix B 11.) 12. Kenosha Harbor, Wisconsin.-During the year the north pier was extended by sinking one crib 50 feet long by 30 feet wide, and the old piers were repaired. No appropriation was made at the last session of Congress. To make this harbor available for all classes of vessels will require the extension of the piers 100 feet further and dredging in the channel to a depth of 16 feet. Amount available July 1, 1872. Amount expended during the fiscal year ending June 30, 1873. Amount available July 1, 1873... Amount required for fiscal year ending June 30, 1875. (See Appendix B 12.) $17,899 00 17,391 06 507 94 35,000 00 13. Chicago Harbor, Illinois.-During the year the breakwater was extended 800 feet, (the cribs in this length reaching only to the watersurface,) and the superstructure was completed over the rest of the work. At the close of the fiscal year the breakwater was 3,050 feet long, including the return at north end of 300 feet. The superstructure over the last 800 feet has not been laid. It is expected that 1,100 feet |