Geography > Precipitation: Countries Compared. After six years of drought and the worst winter in a decade, heavy rains and melting snow have killed as many as 200 people in Afghanistan over the last several days. In Farah province, 68 people have died in the floods.
Costs of the Border Wall. 353 miles of border wall and 299 miles of vehicle barrier have been constructed along the U.S. Mexico border. According to Taxpayers for Common Sense, the average mile of border wall costs taxpayers $4.5 million, an average mile of vehicle barrier $1.6 million. In some places the cost of construction has exceeded $12 million per mile.
Retaining Wall Cost. Poured retaining walls with elaborate curves require complex formwork and will drive up cost for a wall. 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.If you add a decorative finish, curves, steps, lighting or other upgrades, the cost will rise.or a basic wall you can expect to pay between $30 and $40 per square foot. If you add a decorative finish, curves, steps, lighting or other upgrades, the cost will rise.