Tropical Storm Isaac, pt. 2
A weakened Isaac moved over Arkansas on Friday, leaving weary residents in Southern states digging out of its muddy mess and hundreds of thousands without power.
Image 1 of 1
Tropical Storm Isaac
The pumps are pumping, and the gates are closed on New Orleans' 17th Street Canal Flood gates and Pump system. The system is designed to keep water in Lake Pontchartrain from flowing back up the canal during a storm. The massive pumps also keep the canal's level from rising over the levees and flood walls.