Doing the Math on Teacher Pensions: How to Protect. Teachers and Taxpayers. Do the math on teacher pensions and it just doesnât add up. In 2014 teacher pension systems had a total of a half trillion. dollars in unfunded liabilities â a debt load that climbed more than $100 billion in just the last two years. Across the.
1 These prices can double for a roadway-quality driveway (geotextile fabric covered with three layers of compacted gravel, each about 3-4 thick), or $450 -$1,800 for 12'x25' and $11,000 -$60,000 or more for a driveway 12' wide and a quarter-mile long. A cubic yard of driveway-grade crushed gravel costs about $10 -$60 or more, depending on whether it is picked up by the customer at the gravel yard or delivered to the job site, and the size and type of gravel used.
Cost. To get the cost of gravel, multiply the number of cubic feet you need by the cost per cubic foot. In the example, we need 150 cubic feet; if it costs $10 per cubic foot, then the gravel costs $1,500.