Ambassador Caffrey is closed in Lafayette and traffic is being diverted after a big rig truck was involved in a crash. It happened near the intersection of Ambassador Caffery Parkway and Dulles Drive. Police are waiting for HAZMAT to clear the scene before the roadway will be reopened. At this time, traffic is being detoured on Eraste Landry and Guilbeau Roads. If you are headed in that direction, police ask you to take an alternate route.