APPENDIX A A A. REMOVING SUNKEN VESSELS OR CRAFT OBSTRUCTING OR ENDANGERING NAVIGATION-SAN JUAN HARBOR, PORTO RICO. REPORT OF CAPT. C. A. F. FLAGLER, CORPS OF ENGINEERS, OFFICER IN CHARGE, FOR THE FISCAL YEAR ENDING JUNE 30, 1901. SAN JUAN, P. R., July 20, 1901. GENERAL: I have the honor to submit the following report of operations upon rivers and harbors under my charge during the fiscal year ending June 30, 1901. Very respectfully, your obedient servant, Brig. Gen. G. L. GILLESPIE, Chief of Engineers, U. S. A. C. A. F. FLAGLER, Captain, Corps of Engineers. WRECK OF STEAMER CRISTOBAL COLON IN SAN JUAN HARBOR, PORTO RICO. In the spring of 1898 the side-wheel iron steamer Cristobal Colon, length 255 feet, beam 33 feet, was sunk intentionally in the entrance to the harbor of San Juan, with a view to closing the entrance. Although not closed, the entrance was made very narrow and difficult of navigation, and the removal of the wreck was recommended. Under date of December 7, 1900, a contract was entered into with Jose Enrique Denton, of San Juan, P. R., for the removal of the wreck to a minimum depth of 36 feet at mean low water, for the sum of $7,500, the work to be completed, as bid by him, on or before April 27, 1901. The work of removal was completed according to specifications by May 27, 1901. The amount expended during the year is $7,709.27. 3635 APPENDIX B B B. BRIDGES AT WASHINGTON, DISTRICT OF COLUMBIA. REPORT OF LIEUT. COL. CHAS. J. ALLEN, CORPS OF ENGINEERS, OFFICER IN CHARGE, FOR THE FISCAL YEAR ENDING JUNE 30, 1901, WITH OTHER DOCUMENTS RELATING TO THE WORKS. 1. Repair of the Aqueduct Bridge across Potomac River at Washington, District of Columbia. 2. Memorial Bridge across Potomac River at Washington, District of Columbia. UNITED STATES ENGINEER OFFICE, GENERAL: I have the honor to forward herewith * * * my annual report for year ended June 30, 1901, for Memorial Bridge and repairs to the Aqueduct Bridge * * Very respectfully, your obedient servant, CHAS. J. ALLEN, Lieut. Col., Corps of Engineers. Brig. Gen. G. L. GILLESPIE, Chief of Engineers, U. S. A. BBB 1. REPAIR OF THE AQUEDUCT BRIDGE ACROSS THE POTOMAC RIVER AT WASHINGTON, DISTRICT OF COLUMBIA. WORK DONE DURING FISCAL YEAR ENDED JUNE 30, 1901. RECONSTRUCTION OF PIER NO. 4. At the opening of the fiscal year the contractors had obtained practically all of the dimension stone required for the pier and installed pumps and derricks, repaired the false works, and tightened the cofferdam. As measures of precaution a fire pump was installed upon the cofferdam and a temporary fence was constructed for the purpose of con |