06/19/2026
As we celebrate America's 250th anniversary, test your knowledge of USACE history with this week's trivia question from Headquarters. If you think you know the answer, tell us in the comments.
For more than 250 years, the U.S. Army Corps of Engineers has accomplished its missions to serve the nation, its Armed Forces and its citizens. USACE’s history is America’s history.
In celebration of America's 250th, we are asking a series of questions about the U.S. Army Corps of Engineers every Friday until Independence Day. Think you know the answer? Let us know in the comments! Each Monday we will provide the answer in the comments. Today's question:
The Corps of Engineers is known not only for its expertise in civil engineering but also for its long-standing drive to innovate based on research, development, and technological advancement. In the 19th century, Army Engineers built the first ever cast-iron bridge in the United States, a span designed for transportation that remains in use today. Which bridge is it?
A. Cabin John Bridge in Maryland
B. Cape Cod Canal Railroad Bridge in Massachusetts
C. Dunlap’s Creek Bridge in Pennsylvania
D. Eads Bridge in Missouri