![](http://www.alamy.com/thumbs/6/DA39A7E9-4503-47B4-9CCF-218F6D0BA87B/M0Y348.jpg)
Underside of the A1 motorway viaduct across the river Gacka, Otocac, Croatia, 2017
Size: 3456px × 5184px
Location: Šumecica ulica, Otocac, Croatia
Photo credit: © John Kiss / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: a1, aquaduct, bridge, concrete, construction, croatia, drainage, gacka, highway, lika, motorway, national, otocac, structure, supports, underside, viaduct