The city of Golden Valley (MN) Web site offers the interactive Inflow and Infiltration in Golden Valley activity. This Flash based animation attempts to show homeowners how connecting a sump pump directly to the sewer system, besides being illegal, can cause other unforeseen problems. The characters explain that this could lead to higher water and sewer charges and even basement flooding of...

This remarkable collection from the New York Public Library's Digital Gallery has historic photographs of aqueducts, sewers, and other essentials that make up the Big Apple's infrastructure. The collection brings together over 600 images that document mass transit proposals and projects dating from 1867. Visitors can make their way through images of the construction of the Holland Tunnel, the...