![](http://www.alamy.com/thumbs/6/9EF86C4F-663F-47D0-AA54-CF2CCD3ECC3B/R6T3AN.jpg)
Milan (Italy), building yard for the construction of the new line 4 "Blue" of the Underground, the "mechanical mole" arranged for the excavation of the tunnel under the city center
Size: 4256px × 2832px
Location: Milan, Italy
Photo credit: © Dino Fracchia / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: astaldi, boring, building, city, drill, drilling, economy, europe, european, excavating, excavation, impregilo, italian, italy, lombardy, machine, mechanical, metro, milan, milano, mole, photo, public, salini, subway, tbm, technology, town, transport, transports, tube, tunnel, tunnelling, underground, yard