The two tunnel tubes were divided into 50 zones each 25 m in length, and each protected by one string of nozzle pipes located at the center of the tunnel ceiling. Each zone nozzle pipe was connected to a VID FIREKILL Model C-EL deluge valve, which for this project was supplied in high alloy stainless steel, SIL 3 solenoid, and with an MTTFd value of 150 years.
Tunnel type: Road tunnel
Tunnel length: Twin tubes of 900 m
Tunnel width: 9.2 m
Tunnel height: 5.7 m
Installation year: 2015-17