On March 11, 1779, Congress established the U.S. Army Corps
of Engineers to help plan, design and prepare environmental
and structural facilities for the U.S. Army.

Made up of civilian workers, members of the Continental Army
and French officers, the U.S. Army Corps of Engineers played
an essential role in the critical Revolutionary War battles at
Bunker Hill, Saratoga and Yorktown.

Mississippi River improvements made by the Corps of
Engineers in 1890.