Utility tunnel

Flin Flon (in Manitoba, Canada) is built on rock, making excavation costly. The utilidor in foreground carries municipal sewer and water services, and protects piping from freezing in the winter.

A utility tunnel, utility corridor, or utilidor is a passage built underground or aboveground to carry utility lines such as electricity, water and sewer pipes. Communications utilities like fiber optics, cable television and telephone cables are also sometimes carried. They may also be referred to as a services tunnel, services trench, services vault, or cable vault. Smaller size cable containment is often referred to as a cable duct, or underground conduit. Direct-buried cable is a major alternative to ducts or tunnels.

单词	Cable vault
释义	Cable vault 英语百科 Utility tunnel A utility tunnel, utility corridor, or utilidor is a passage built underground or aboveground to carry utility lines such as electricity, water and sewer pipes. Communications utilities like fiber optics, cable television and telephone cables are also sometimes carried. They may also be referred to as a services tunnel, services trench, services vault, or cable vault. Smaller size cable containment is often referred to as a cable duct, or underground conduit. Direct-buried cable is a major alternative to ducts or tunnels.
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Cable vault

Utility tunnel