- Dictionary : PIARC Road Dictionary/ English
- Theme : Structures / Tunnels
- Definition : Connecting pipe or adaptor that enables water to be delivered from a supply point or main to a point of connection.
1. For fire-fighting purposes, the point of connection is generally a hydrant point, sprinkler outlet or deluge valve.
2. In a tunnel environment the standpipe is dedicated to fire purposes.
3. Standpipes can be either wet or dry.