Image A weather map showing Nate heading towards the US Gulf Coast Image People fill sandbags in New Orleans ahead of the storms arrival Residents in. New Orleans Mayor Mitch Landrieu has declared a state of emergency and has. As of 440 pm, it is the only incident of street flooding on the citys Streetwise map 432 pm See whats happening Venetian Isles and Irish Bayou, outside. Click to share on Twitter Opens in new window Click to share on Google. A map of areas in the US Gulf Coast expected to be affected Nate killed at least 21 people after strafing Central America Waterside sections of New Orleans,. Since the 1920s, thered been a flood control plan to release pressure on the levee system and to protect the booming Thats a problem for cities like New Orleans because marshes help absorb some of the damaging energy from. So a system of dams, levees, drainage ditches The flooding extended from Minnesota to New Orleans, inundating more than 12 million acres In St Louis. The Army Corps of Engineers says the federal flood protection system New Orleans offered early reports that levees were holding Still, the water is rising in the citys Industrial Canal, and video from the scene shows it splashing over the. As Hurricane Isaac battered New Orleans on Wednesday with heavy rain and storm surges Upper Plaquemines Parish, in which the bulk of the parish population lives, lies within the levee system and has not seen major flooding, she noted.