pipeline cost per mile
â the cost per mile increases with the pipe size. â¢ construction on land using a 12-inch pipeline costs about $300,000 per mile while using a 42-inch pipeline costs almost $1.5 million per mile.â costs increases if the ppp g gipeline goes through residential areas, or there are roads, highways and rivers on the way. the cost per mile increases with the pipe size. â¢ construction on land using a 12-inch pipeline costs about $300,000 per mile while using a 42-inch pipeline costs almost $1.5 million per mile.