LINCOLN, Neb. (AP) — Lincoln officials are searching for the people who stole about $5,500 worth of speed bumps that were recently installed to prevent drag racing.

The thieves removed 48 pieces of rubber weighing a total of 2,400 pounds along McCormick Drive in northeast Lincoln earlier this month. City traffic operations manager Scott Opfer says they were secured to the concrete with 300 6-inch bolts.

Public Works employees installed the speed bumps in June after a request from police. The bumps were strategically placed throughout a half-mile strip that’s popular for racing. The area’s speed limit is 25 mph.

Opfer says the theft was well-planned.