ALERT: Manhunt underway in Matoaca after suspects lead police on chase

PHOTOS: Crews inspect Washington Monument

Preliminary data from the National Geodetic Survey shows the Washington Monument, which is scheduled to be repaired after it was damaged by a 5.8-magnitude earthquake last year, appears to be sinking.

READ MORE: Official says Washington Monument may be sinking

Here are some photos of crews inspecting the structure in 2011.