In 2003, Forster and Solomon (Observations of a weekend effect in diurnal temperature range, PNAS, [ http://www.pnas.org/content/100/20/11225.full ]) reported: we find evidence of a weekly cycle in diurnal temperature range (DTR) for many stations in the United States, Mexico, Japan, and China.
The total cost to have a concrete retaining wall installed will be a combination of material and labor prices. For a basic wall you can expect to pay between $30 and $40 per square foot.
According to the National Association of Home Builders, conventional 8-inch concrete cinder blocks cost around $1.46 per square foot of foundation before installation. Contractors may charge as much as $1.00 per square foot for installation.xtras can drive up the cost of both a concrete foundation and concrete block. For instance, an exposed poured concrete foundation may be colored or faux-finished to look like stone. This can increase the cost of your foundation to as much as $4.50 per square foot.