DELAWARE TWP. - Roofing nails were discovered yesterday sprinkled across a resident's driveway that police sometimes use when clocking traffic speeds on Route 519.

About 40 nails were spotted by a contractor inspecting the driveway at noon in order to draft a paving estimate, said police.

Several neighbors in the area had complained about speeders on the county road, which has a 40 mph limit in that area.

Patrolman Mark Kobner said today that the homeowner, who lives west of Rosemont near the cemetery, allows police to pull into his driveway to monitor speeds.

The homeowner is “quiet as a church mouse” and “doesn’t bother anybody,” Kobner added.

There hasn't been any roofing work done at the home.

Kobner said that the residents weren’t imagining the speed problem and that some drivers exceed the limit by 20 mph.

Patrolman Elliot Gray is investigating the criminal mischief.