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.
Hardwoods such as redwood, Cyprus or mahogany will raise the price over $30 per surface square foot but add an element of beauty to your wall. Railroad ties are the most commonly used wood for a retaining wall, and prices for this type of wall cost between $25 and $30 per square foot of wall.