Tunnels
Beylaghan tunnel
- Designing a tunnel for collecting surface waters of Karaj road between the city of Ekbatan and Azadi Square
- Design and supervision of the Karaj-Chalus Crossing Tunnel 400 meters long
- 5 tunnel devices in Karaj-Chalus axis damping lengths 95, 100, 2200, 400
، 100 meters - Tunnel of 1 axis of Darzine – Sabzevaran with a length of 1200 meters
- Tunnel of 3 axis of Darzin-Sabzevaran, 500 meters long
- The tunnel of the 2nd axis of the Darzin-Sabzevaran is 1500 meters long
- Tunnel axis of Rahim Abad-Kalachai road north of Qazvin