A piece of an exploded shell damaged a home and killed a cat in Jefferson in April.
The concept calls for building an 80-foot-long by 80-foot-wide structure with a height of 14 feet. The walls would be comprised of replaceable four-inch-thick armor steel plates to deflect the debris.
Quality Engineering & System Assurance director Dominick Carra tells the Daily Record of Parsippany a long-term fragment containment system contained within a building could cost more than $10 million.
All outdoor testing at the arsenal is suspended until the containment unit is built.