The world’s first lock and key system was invented in ancient Egypt around 4000 BCE. Made of wood, it used simple pins and bolts to secure doors, a design that still influences modern locks today.

A Trumbull-Brayman excavator barge performs demolition work on an auxiliary lock chamber wall at the Montgomery Lock and Dam near Monaca, Pa. August 25, 2025 Demolition work is underway to remove an ...

In 1939, the U.S. Army Corps of Engineers’ LaGrange Lock and Dam was completed on the Illinois River near Beardsville, just north of where the Illinois meets the Mississippi. It’s a key shipping point ...

Posts from this topic will be added to your daily email digest and your homepage feed. Never get locked out again with a smart lock you can control from your phone, with your face, or with a ...

Immediately report missing keys to your department coordinator or to Customer Service. Departments are responsible for the total cost of lock changes and replacement keys. To request replacement keys: ...