Crossing the Interstate 270 bridge over the Mississippi River, it is easy to spot two stone buildings close together in the middle of the river. Perched on oval platforms jutting out of the water, ...

ST. LOUIS – If you’ve ever walked across the historic Chain of Rocks Bridge or even driven along Interstate 270 near the Missouri-Illinois border, there’s a good chance you’ve noticed two striking, ...

Field operations manager John Rocca climbs a staircase inside the new intake tower of the Calaveras Dam replacement project near Sunol, Calif. on Tuesday, Nov. 14, 2017. The SFPUC is replacing the ...

See the historic water intake towers that sit on the Mississippi River near the Old Chain of Rocks Bridge from a drone's point of view. Water intake Tower 1, right, and Tower 2, left, sit on the ...