Why are manholes typically on the road and why are there sometimes 2 or 3 very close together?

Question

Why are manholes typically on the road and why are there sometimes 2 or 3 very close together?

In: 4

Answer 1

Manholes correspond to something under the road – sewer or storm drain, or underground electrical wires, or cable, or telephone.

Those things are often in the road because it’s the easiest place to access to run wires. The alternative is having them on private property, which means you need legal agreements to access them for maintenance purposes.