The cost of constructing concrete slabs at the U.S. Pentagon is staggering, according to a new study.
“If the concrete slab has the potential to sustain a life of 30 years, then it’s going to cost more than the entire annual budget of the Pentagon,” said David Bienenstock, a senior fellow at the Woodrow Wilson International Center for Scholars.
Bienenmassie said the military could be on track to build up to 50,000 concrete slab miles, or kilometers, at a cost of $20 billion a mile.
At the Pentagon, a concrete slab can weigh more than 1,400 pounds and stand up to 3.6 feet tall.
The cost to build the concrete slates could be as much as $1 billion a yard.
A new study by the RAND Corporation estimated the cost of building a concrete slant at the United States Army’s Aberdeen Proving Ground, which is at the heart of the new Pentagon.
The Pentagon has long struggled with the cost and complexity of the concrete project.
According to the RAND study, building a slant would cost $2 billion a square foot, which would take 10,000 square feet of concrete.
The RAND report said a similar project would cost about $4 billion a cubic foot.
Bienelstock said he expected the cost to be in the $2-3 billion range.
The study did not provide an estimate of the number of miles the slabs would be needed.
The Pentagon has been working on concrete slats for decades, but they have never been as large as the new Army’s new base at Fort Hood, Texas, the site of the Fort Hood shooting.
But the Pentagon’s new project will be a major step forward in cementing a concrete future for the Pentagon.
It is expected to cost $500 million to $1.5 billion, according a report from the Army’s engineering office in October.
An Army spokesman declined to comment on the cost.