A vehicle parked at the Langley Marina becomes inundated with floodwaters as Hurricane Irene approaches Langley Air Force Base, Va., Aug. 27, 2011. Joint Base Langley-Eustis implemented evacuations, base closures and infrastructure protection measures to mitigate storm damage at Langley AFB and Fort Eustis. (U.S. Air Force photo by Senior Airman Jason J. Brown)

Cement barriers blockade the King Street Bridge as Hurricane Irene approaches Langley Air Force Base, Va., Aug. 27, 2011. Irene made landfall in North Carolina becoming the first hurricane to hit the continental United States since 2008. (U.S. Air Force photo by Senior Airman Jason J. Brown)

The Back River spills over the seawall into Eagle Park at Langley Air Force Base, Va., as Hurricane Irene approaches the area Aug. 27, 2011. Irene made landfall in North Carolina becoming the first hurricane to hit the continental United States since 2008. (U.S. Air Force photo by Senior Airman Jason J. Brown)

A fallen tree obstructs traffic at an intersection at Langley Air Force Base, Va., as Hurricane Irene approaches the area Aug. 27, 2011. Joint Base Langley-Eustis implemented evacuations, base closures and infrastructure protection measures to mitigate storm damage at Langley AFB and Fort Eustis. (U.S. Air Force photo by Senior Airman Jason J. Brown)

U.S. Air Force Senior Airman Michael Harrold, 633rd Communications Squadron, and Airman 1st Class Daniel Hernandez, 633rd Force Support Squadron, test communications at the Shellbank Fitness Center at Langley Air Force Base, Va., as Hurricane Irene approaches the area Aug. 27, 2011. Irene made landfall in North Carolina becoming the first hurricane to hit the continental United States since 2008. (U.S. Air Force photo by Senior Airman Jason J. Brown)

Cots are arranged at Shellbank Fitness Center's temporary shelter at Langley Air Force Base, Va., as Hurricane Irene approaches the area Aug. 27, 2011. Joint Base Langley-Eustis implemented evacuations, base closures and infrastructure protection measures to mitigate storm damage at Langley AFB and Fort Eustis. (U.S. Air Force photo by Senior Airman Jason J. Brown)

U.S. Air Force Airman 1st Class Shane Carey, 633rd Civil Engineer Squadron, turns off power to the Professional Development Center at Langley Air Force Base, Va., as Hurricane Irene approaches the area Aug. 27, 2011. Irene made landfall in North Carolina becoming the first hurricane to hit the continental United States since 2008. (U.S. Air Force photo by Senior Airman Jason J. Brown)

U.S. Air Force Maj. (Dr.) Erik Oberg and Col. (Dr.) Eric Stone, 633rd Medical Group, monitor storm progress and communicate via radio with other Airmen outside the USAF Hospital Langley Emergency Department at Langley Air Force Base, Va., as Hurricane Irene approaches the area Aug. 27, 2011. Joint Base Langley-Eustis implemented evacuations, base closures and infrastructure protection measures to mitigate storm damage at Langley AFB and Fort Eustis. (U.S. Air Force photo by Senior Airman Jason J. Brown)

Fallen trees obstruct sidewalks on the Air Combat Command campus as a result of high winds during Hurricane Irene at Langley Air Force Base, Va., Aug. 28, 2011. Officials said the storm knocked out power to more than 4 million people and was responsible for at least 20 deaths along the East Coast. (U.S. Air Force photo by Senior Airman Jason Joel Brown)

Fallen trees obstruct streets on the Air Combat Command campus as a result of high winds during Hurricane Irene at Langley Air Force Base, Va., Aug. 28, 2011. Joint Base Langley-Eustis personnel began assessment and base recovery options in the early morning hours following the passing of the storm. (U.S. Air Force photo by Senior Airman Jason Joel Brown)

Water pools at the east end of the flightline at Langley Air Force Base, Va., following Hurricane Irene Aug. 28, 2011. Joint Base Langley-Eustis personnel began assessment and base recovery options in the early morning hours following the passing of the storm. (U.S. Air Force photo by Senior Airman Jason Joel Brown)

A tree lays fallen onto a home on the Air Combat Command campus as a result of high winds during Hurricane Irene at Langley Air Force Base, Va., Aug. 28, 2011. Officials said the storm knocked out power to more than 4 million people and was responsible for at least 40 deaths along the East Coast. (U.S. Air Force photo by Senior Airman Jason Joel Brown)

U.S. Air Force Airmen from the 633rd Security Forces Squadron and 633rd Civil Engineer Squadron prepare to raise the installation colors following Hurricane Irene Aug. 28, 2011. Joint Base Langley-Eustis personnel began assessment and base recovery options in the early morning hours following the passing of the storm. (U.S. Air Force photo by Senior Airman Jason Joel Brown)

U.S. Air Force Airmen from the 633rd Security Forces Squadron and 633rd Civil Engineer Squadron prepare to raise the installation colors at Langley Air Force Base, Va., following Hurricane Irene Aug. 28, 2011. Officials said the storm knocked out power to more than 4 million people and was responsible for at least 40 deaths along the East Coast. (U.S. Air Force photo by Senior Airman Jason Joel Brown)

U.S. Force Airmen from the 633rd Security Forces Squadron and 633rd Civil Engineer Squadron raise and salute the installation colors at Langley Air Force Base, Va., following Hurricane Irene Aug. 28, 2011. Joint Base Langley-Eustis personnel began assessment and base recovery options in the early morning hours following the passing of the storm. (U.S. Air Force photo by Senior Airman Jason Joel Brown)

An Airman from the 633rd Civil Engineer Squadron removes debris that was washed up during flooding caused by Hurricane Irene at Langley Air Force Base, Va., Aug. 28, 2011. Langley AFB experienced approximately 8.8 inches of rain and an estimated 7.5 foot storm surge during the hurricane. (U.S. Air Force photo by Airman 1st Class Kayla Newman)

Ocean debris covers a running path after Hurricane Irene at Langley Air Force Base, Va., Aug. 28, 2011. Hurricane Irene made landfall in the local area Saturday and brought roughly 8.8 inches of rainfall, 67 mph winds, and coastal flooding to the base. (U.S. Air Force photo by Airman 1st Class Kayla Newman)

Maximum wind gusts of 67 mph caused a tree to be ripped from the ground near the dormitories due to Hurricane Irene at Langley Air Force Base, Va., Aug. 28, 2011. The category one hurricane caused extensive flooding but minimal physical damage to base facilities. (U.S. Air Force photo by Airman 1st Class Kayla Newman)

A light pole is damaged by strong winds during Hurricane Irene at Langley Air Force Base, Va., Aug. 28, 2011. Winds reached a peak of 67 mph on base during the storm. (U.S. Air Force photo by Airman 1st Class Kayla Newman)

U.S. Air Force Senior Airman Brent Pope, 633rd Civil Engineer Squadron water and fuels maintainer, removes sandbags from buildings during Hurricane Irene recovery at Langley Air Force Base, Va., Aug. 29, 2011. Sandbags were used around Langley to keep buildings from flooding during the category one storm that brought 8.8 inches of rain to the base. (U.S. Air Force photo by Airman 1st Class Camilla Griffin)

U.S. Air Force Airman 1st Class Steven Boyle, 633rd Civil Engineer Squadron water and fuels maintainer, recovers sandbags following Hurricane Irene at Langley Air Force Base, Va., Aug. 29, 2011. Members from across Langley AFB went to work cleaning and recovering the base when the storm passed and will continue clean-up operations until the base has been completely restored. (U.S. Air Force photo by Airman 1st Class Camilla Griffin)

Airmen from 633rd Civil Engineer Squadron organize sandbags used during Hurricane Irene at Langley Air force Base, Va., Aug 29, 2011. Thousands of sandbags were distributed across the base in an effort to prevent damage caused by flooding on the installation. (U.S. Air Force photo by Airman 1st Class Camilla Griffin)

Matt Lamberski, a contractor from a local landscaping company, puts leaves and branches into a wood chipper Aug. 30, 2011 at Langley Air Force Base, Va. The landscapers have been on base since Aug. 28 to clean up debris left in the wake of Hurricane Irene. (U.S. Air Force photo by Staff Sgt. Jeff Nevison)

Matt Lamberski, a contractor from a local landscaping company, rakes up leaves and branches in base housing Aug. 30, 2011, at Langley Air Force Base, Va. Hurricane Irene made landfall in the area as a category one hurricane on Aug. 27, and caused massive flooding, and downed trees across the installation. (U.S. Air Force photo by Staff Sgt. Jeff Nevison)

Matt Lamberski, a contractor from a local landscaping company, removes trees damaged by Hurricane Irene Aug 30, 2011, at Langley Air Force Base, Va. Langley AFB received 8.88 inches of rain and 67 mile per hour wind gusts from the hurricane. (U.S. Air Force photo by Staff Sgt. Jeff Nevison)