shore or Falls Point were removed 3 feet deeper than their present level, or to 10 feet depth at mean low water, the channel would not only be so improved as to give all that will probably be required, but the currents. would also be sensibly modified, so that the time in which the passage may be made would be much decreased. Such a removal would produce a clear channel of 150 feet width, in which the depth would not be less than 10 feet at mean low water, or 16.37 feet at mean high water by the gauge before mentioned. This would require the removal of about 1,200 cubic yards of solid ledge, and probably a few loose stones. In such a situation the removal of solid ledge is expensive, and the cost of the whole work can not be safely estimated at less than $35,000, when done in a single contract. The expense if done piecemeal would be largely increased. In view of the present and prospective demands of the increasing business on Sullivan River and the probable cost of the permanent improvements required, it is my opinion that Sullivan Falls, Maine, is worthy of improvement. The maps now in this office are considered sufficient, so that no estimate for a survey is here made. Should a project for improvement of Sullivan Falls be approved and an appropriation be made therefor, an examination of the channel to locate any small obstruction not now known would be sufficient. Very respectfully, your obedient servant, JARED A. SMITH, Lieut. Col., Corps of Engineers. A 30. ESTABLISHMENT OF HARBOR LINES AT LUBEC, MAINE. UNITED STATES ENGINEER OFFICE, Portland, Me., March 2, 1891. GENERAL: Referring to my letter dated February 4, 1891, I have the honor to report that in compliance with instructions in Department letter, dated February 11, 1891, I visited Lubec, Me., on the 25th of February, and made such inquiries and observations as seemed necessary for the purpose of establishing a harbor line under the provisions of section 12 of the river and harbor act of September 19, 1890. The channel at Lubec is narrow and the rapid tidal currents give it many of the features of a river. It is not advisable to permit any wharves to extend so far as to interfere with the free use of the full width of the channel at high water and it appears desirable to permit, as far as practicable, the adjacent owners to build wharves as far as the line of mean low water. An examination of all the points bearing upon the subject leads me to recommend the establishment of harbor lines as indicated upon a tracing forwarded in a separate roll to accompany this report.* There are two lines meeting near the middle of the channel front and so * Omitted. located as to approximate as nearly as possible the line of mean low water. There appears to be no present occasion for the establishment of harbor lines other than upon the front indicated. Very respectfully, your obedient servant, Brig. Gen. THOMAS L. CASEY, Chief of Engineers, U. S. A. JARED A. SMITH, Lieut. Col., Corps of Engineers. [First indorsement.] OFFICE CHIEF OF ENGINEERS, Respectfully submitted to the Secretary of War. March 5, 1891. Protests having been made in regard to a proposed extension of a wharf belonging to Mr. H. S. Kelly, at Lubec, Me., Lieut. Col. Jared A. Smith, Corps of Engineers, the officer in charge of the improvement of Lubec Channel, was instructed from this office to make the necessary examination and submit a map of the locality having upon it harbor lines recommended for adoption. The within report and accompanying map prepared under these instructions are respectfully submitted with recommendation that the harbor lines as shown on the map be approved by the Secretary of War under the provisions of section 12 of the river and harbor act ap proved September 19, 1890, and that the Secretary place his approval both upon the tracing and this communication. THOS. LINCOLN CASEY, Brig. Gen., Chief of Engineers. [Second indorsement.] WAR DEPARTMENT, March 6, 1891. Respectfully returned to the Chief of Engineers with approval of the location of the harbor lines indorsed on this paper and the accompany. ing tracing as recommended. L. A. GRANT, Assistant Secretary of War. A 31. ESTABLISHMENT OF HARBOR LINES IN KENNEBEC RIVER AT BATH, MAINE. UNITED STATES ENGINEER OFFICE, Portland, Me., July 9, 1891. GENERAL: Referring to Department letter of March 26, 1891, I have the honor to submit the following report of a survey of wharves and river front of the Kennebec River at.Bath, Me., with my views regarding the establishment of harbor lines, under the provisions of section 12 of the river and harbor Act of September 19, 1890. In May, 1891, Mr. F. S. Burrowes, United States assistant engineer, made a survey of the harbor front mentioned, with hydrographic work sufficiently extensive and in detail. The survey has been platted on a scale of 1:4,000. A tracing of the map is forwarded in a separate package by mail. The lines which are recommended for adoption as harbor lines are shown in red upon the map. At the extreme upper end of the harbor front the river is about 1,350 feet wide between the wharves at Bath and high-water mark on the pposite shore. At this point the currents are quite rapid, and there are many reasons why it is desirable to preserve the present width as nearly as practicable. The lines around this point are therefore made to conform as nearly as practicable to the contour of 12 feet depth, which is near the end of the wharves. Below this point the river becomes much wider, and it seems desirable to permit the extension of wharves to a greater depth of water, so far as it may be done without interfering with any general interest of navigation. This affords a depth ranging from 12 feet to more than 30 feet along well-defined lines. The managers of the Maine Central Railroad and the Bath Iron Works, the two largest interests represented at Bath, are making considerable improvements, and desire extensions of the wharf fronts some distance beyond their present limits. The river at the first of these places is at least 700 feet wider than it is above, so that no inconvenience will arise from establishing the harbor line farther out, and this is necessary in order to obtain as great a depth of water as is found on the adjacent section of front above. There are several ledges along the front below, for the removal of which estimates have been submitted. By putting the harbor line outside these ledges ample width will be allowed for the river, the greatest interests at Bath will be accommodated, and expense will be saved to the United States. I therefore recommend the adoption of the lines as indicated upon the tracing. Very respectfully, your obedient servant, JARED A. SMITH, Lieut. Colonel, Corps of Engineers. Brig. Gen. THOMAS L. CASEY, [First indorsement.] OFFICE CHIEF OF ENGINEERS, U. S. ARMY, Respectfully submitted to the Secretary of War. Request having been made for the establishment of harbor lines in the Kennebec River at Bath, Me., and Lieut. Col. Jared A. Smith, Corps of Engineers, the officer in charge of the improvement of the Kennebec River, having recommended that harbor lines be established at Bath under the provisions of section 12 of the river and harbor act approved September 19, 1890, he was instructed from this office to make the necessary survey, and submit a map of the locality, having upon it harbor lines recommended for adoption. Omitted. The written report and accompanying map prepared under these instructions are respectfully submitted, with recommendation that the harbor lines as shown on the map be approved by the Secretary of War. under the provisions of section 12 of the river and harbor act approved September 19, 1890, and that the Secretary place his approval both upo the tracing and this communication. THOS. LINCOLN CASEY, Brig. Gen., Chief of Engineers. WAR DEPARTMENT, July 15, 1891. Approved, and respectfully returned to the Chief of Engineers. L. A. GRANT, Acting Secretary of War. APPENDIX B. IMPROVEMENT OF CERTAIN RIVERS AND HARBORS IN MASSACHUSETTS. REPORT OF LIEUTENANT-COLONEL S. M. MANSFIELD, CORPS OF ENGINEERS, OFFICER IN CHARGE, FOR THE FISCAL YEAR ENDING JUNE 30, 1891, WITH OTHER DOCUMENTS RELATING TO THE WORKS. 26. Establishment of harbor lines in Boston Harbor, Massachusetts. UNITED STATES ENGINEER OFFICE, Boston, Mass., July 9, 1891. GENERAL: I have the honor to transmit herewith annual reports for the works of river and harbor improvement in my charge for the fiscal year ending June 30, 1891. Very respectfully, your obedient servant, Brig. Gen. THOMAS L. CASEY, S. M. MANSFIELD, Lieutenant-Colonel of Engineers. Chief of Engineers, U. S. A. ENG 91 -40 625 |