What is the required clearance over a railroad?

The required clearance over a railroad is established to ensure safety for both rail operations and any structures that may span over the tracks. The standard clearance requirement is typically 23 feet above the top of the rail. This height is designed to prevent any potential collisions between trains and structures, accommodating the height of the rail cars and ensuring safe passage for all forms of rail traffic.

Having a clearance of 23 feet allows for freight trains, which may carry high loads, to pass safely underneath without the risk of contacting overhead structures. This requirement is particularly important in areas where rail traffic is frequent or where larger trains operate. It reflects industry standards often set by federal regulations and guidelines, which prioritize safety in railway operations.

While there are higher clearance options available, they are not the standard requirement, making 23 feet the correct and most applicable answer for typical situations involving railroads.