Structural Engineer Costs. Homeowners spend an average of $512 on hiring a structural engineer, with most homeowners spending between $319 and $708. The larger and more detailed the project is, the higher the cost of hiring a structural engineer becomes. Some professionals charge by the job, while others may charge by the hour.
The total surface area of Earth is about 197 million square miles (509 million square km). About 71 percent is covered by water and 29 percent by land.
How many miles is the Earth between the North pole to South pole? . . . if you measure the earth through the poles the diameter is. . . 7,901 miles (12,715.43 km). (refer to the About.com link, below)   The total (air) distance from S â¦ outh Pole to North Pole is 12,430 miles.