Organized April 4, 1864, from 5th Corps de Afrique Engineers. Attached to Engineer Brigade, Dept. of the Gulf, to October, 1864. 2nd Brigade, 1st Division, United States Colored Troops, Dept. of the Gulf, to February, 1865. District of Key West, Fla., to July, 1865. Dept. of Florida to April, 1866.
SERVICE.--Red River Campaign to. May 22, 1864. Built bridges at Grand Ecore April 12. Built fortifications at Grand Ecore April 13-19. Repair road and crossing over Cane River April 19-20. Lower Crossing of Cane River April 22. At Alexandria constructing works and dam April 25-May 13. Retreat to Morganza May 18-22. Marksville May 16. Operations on Yellow Bayou May 17-20. Fatigue duty at Morganza until June 20. Ordered to New Orleans June 20. Duty at New Orleans and Plaquemine until December, 1864. At Key West and Tortugas, Fla., and in the Dept. of Florida until April, 1866. Operations near St. Marks, Fla., February 21-March 7, 1865. Newport Bridge March 5-6. Natural Bridge March 6. Mustered out April 28, 1866.
