Logs for Rouster 

21-Mar-05
This is the Coon Rapids dam on the Mississippi River in Coon Rapids, MN.

The original dam was built in 1913 for the production of hydropower. Between 1995 and 1997, an entirely new 1,000 foot dam was built using a complex system of inflatable rubber "balloons" and traditional steel gates. 
 
01-Mar-05
Easy one! 
 
11-Feb-05
The Stone Arch Bridge in Minneapolis, MN is a landmark. It was built in 1882-1883 as a project of the Minneapolis Union Railway Co. A belt line of the Great Northern's forerunner, the St. Paul, Minneapolis & Manitoba. Nineteen months of heavy construction and $650,000 went into this 2,100-foot-long bridge with its graceful arches of St. Cloud granite. 
 
28-Jan-05
Very informative. TFTC. 
 

I was looking at the wrong object on Terraserver for a while. Then Google helped me out.