NEW ORLEANS — The Federal Emergency Management Agency is paying $11.6 million for historic preservation of five of the oldest buildings at Jackson Barracks. The garrison buildings, now single-family housing, sat for weeks in Hurricane Katrina’s floodwaters.

Col. Tim Chastain, the installation commander, said the money covers the cost of restoring the buildings to preservation standards rather than pre-storm condition.

The barracks were built between 1830 and 1836. Chastain said some features considered historic are from Depression-era renovations by the Works Progress Administration.

Chastain said the renovations are completed, noting that the buildings are so significant that FEMA and other agencies agreed the work should be done first, with reimbursement later.

FEMA said it has sent $113.8 million so far to Louisiana for hurricane recovery at Jackson Barracks, which sits on the New Orleans-St. Bernard Parish line.