The study named Boston, New York, and Norfolk, Va., as the three most vulnerable metropolitan areas. Another study found that just a 1.5-foot rise in sea level would expose about $6 trillion worth of property to coastal flooding in the Baltimore, Boston, New York, Philadelphia and Providence, R.I., areas.
A basic asphalt driveway costs about $2 to $5 per square foot, according to CostHelper.com. That amounts to $720 to $1,800 for a basic standard-size residential, two-car asphalt driveway measuring 18 feet wide and 20 feet long. A stamped asphalt pattern, such as in the shape of bricks or stones, costs $3 to $9 per square foot, or $1,080 to $3,240 for a standard-size driveway. By comparison, the cost for a plain concrete driveway runs $3 to $10 per square foot, according to Costhelper, or $1,080 to $3,600 for a standard-size, two-car driveway. Customized concrete driveways with decorative elements can run $15 to $25 per square foot, or $5,400 to $9,000 total for the driveway.
Recycled asphalt is also an option; one thatâs popular for long rural driveways and it costs less. As far as costs are concerned, Graeme says asphalt and concrete are âvery similarâ. The cost is in the excavation, removal of spoil, base course and any curbing or edging detail involved.An average 80-100m2 driveway, including excavation, preparation and asphalt would typically be in the vicinity of $80 to $100 per m2, plus GST.ecycled asphalt is also an option; one thatâs popular for long rural driveways and it costs less. As far as costs are concerned, Graeme says asphalt and concrete are âvery similarâ. The cost is in the excavation, removal of spoil, base course and any curbing or edging detail involved.