Flat-bottom boats have carried eighteen million cubic yards of dredged material to the island.

VOA: special.2009.10.06

"A lack of coastal irregularities, " such as substantial barrier islands or hills, and the Gulf of Mexico's flat bottom make southern Louisiana "ideal for wave damage, " according to the National Weather Service Web site.

CNN: Storm surge the fatal blow for New Orleans

Bunk beds, with the top bunk actually a flat panel pulled down from the bottom of overhead bins, were something that could be built to required safety standards.

WSJ: Remedy the Squeeze in Airplanes' Coach Cabins

The distribution of tax increases among households in each of the bottom four income groups is pretty flat.

FORBES: The Fiscal Cliff Deal In One Picture