The regiment was attached to 15th Brigade, 4th Division, Army of the Ohio, to March 1862.

20th Brigade, 6th Division, II Corps, Army of the Ohio, to November 1862.

3rd Brigade, 1st Division, Left Wing, XIV Corps, Army of the Cumberland, to January 1863.

2nd Brigade, 2nd Division, IV Corps, Army of the Cumberland, to November 1863.

2nd Brigade, 1st Division, XIV Corps, Army of the Cumberland, to July 1865.

Buell's operations in northern Alabama and middle Tennessee on line of the Memphis & Charleston Railroad June to August.

Duty at Stevenson, Ala., July 18 to August 31 building forts and stockades and guarding the railroad.

Passage of the Cumberland Mountains and Tennessee River and Chickamauga Campaign August 16-September 22.

Stationed on the Chickamauga; engaged in picket duty and cutting timber for warehouses in Chattanooga until February 17, 1864.

Engineer duty at Chattanooga and stationed at Lookout Mountain constructing military hospitals until September 1864.

Relieved from engineer duty and pursuit of Forrest into northern Alabama September 25-October 17.