Alsemberg Viaduct

The Alsemberg Viaduct is a concrete arch bridge spanning the Martiges River in Sint-Willemstad Parish. It is the second longest bridge in Brunant, after the Martiges Viaduct, which is located to the east.

The Alsemberg Viaduct is named after a nearby hill called Alsemberg, which lays south of the river.

The bridge opened in 1971 and was the second bridge over the river, after the Bergen Bridge. It cost around 80 million thalers and was one of the most expensive engineering projects ever in Brunant.

The viaduct carries the A1 motorway, the busiest motorway in Brunant. It connects Sint-Willemstad in the south with eastern Brunant. Until the opening of the Martiges Viaduct in 1995, the Alsemberg Viaduct als served as most important traffic route to Drenthe.