The utility poles of USA. The standard utility pole in the United States is about 40 ft long and is buried about 6 ft in the ground. However, poles can reach heights of 120 ft or more to satisfy clearance requirements. They are typically spaced about 125 ft apart in urban areas, or about 300 ft in rural areas, but distances vary widely based on terrain. Joint-use poles are usually owned by one utility, which leases space on it for other cables. In the United States, the National Electrical Safety Code, published by the Institute of Electrical and Electronics Engineers (IEEE) (not to be confused with the National Electrical Code published by the National Fire Protection Agency [NFPA]), sets the standards for construction and maintenance of utility poles and their equipment.

The United States of America (USA), commonly referred to as the United States (U.S.), America or simply the States, is a federal republic consisting of 50 states and a federal district. The 48 contiguous states and the federal district of Washington, D.C., are in central North America between Canada and Mexico. The state of Alaska is the northwestern part of North America and the state of Hawaii is an archipelago in the mid-Pacific. The country also has five populated and nine unpopulated territories in the Pacific and the Caribbean. At 3.79 million square miles (9.83 million km2) in total and with around 317 million people, the United States is the fourth-largest country by total area and third largest by population. It is one of the world's most ethnically diverse and multicultural nations, the product of large-scale immigration from many countries. The geography and climate of the United States is also extremely diverse, and it is home to a wide variety of wildlife.

Source : Wikipedia

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