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.
1 The price of retaining wall construction can depend on several factors. 2  The main difference in the price can be due to the type of material that will be used to build the wall. 3  On average, a professional contractor is going to charge anywhere from $17 to $35 per square face foot. A retaining wall that uses a material such as wood rather than brick can cost anywhere from $19 to $30 per square face foot for a professional laborer to come in. 2  Higher quality stone can cost upwards of $40 per square face foot.