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COMPLEX AND CROWDED <br /> RIGHTS OF WAY <br /> Below the surface, a variety of users place permanent facilities that cannot easily be <br /> removed, repaired, or relocated. Among the facilities permanently placed within the public <br /> rights of way are water mains, natural gas pipes, sewage systems, power lines, high-pressure <br /> steam ducts, telephone wires, and cable television system cables. Right of way is a limited <br /> public resource that must accommodate every users' unique system design, specific space and <br /> depth requirements, and particular maintenance techniques and schedules. The result is a <br /> complex underground system crowded with numerous users all providing essential utilities to <br /> the community. <br />