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.
Gravel driveway: transport 3/8 washed gravel 5 miles and spread to 6â depth along 300' of 8' wide lane and 500 sq.ft. of parking; total 2,900 sq.ft. $0.74: per sq.ft. 2,900: $2,135: Upgrade: additional cost for 150 feet of built in place concrete square curb 6 tall x 12 base. $4.21: per foot: 150: $632: Material Cost: $0.95: per sq.ft. 2,900: $2,767