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.
1 Do-it-yourself materials to install a gravel path can cost $100 -$1,000 or more depending on the gravel chosen (for example, pea gravel is much less expensive than crushed granite); the length, width and depth of the path; and whether edging is done with plastic, metal, wood, natural stone, brick, concrete or pavers.