Gaggione viaduct
The viaduct at Gaggione stands over the valley that takes its name from the river, the Gaggione, that flows through it between Malnate and Varese. Its imposing shape, consisting of a masonry structure 100 metres in length and seven arches each with a span of 12 metres, makes it a landmark structure of the entire company network, along with the nearby Malnate bridge.
It is actually older than the Malnate bridge as it was opened at the same time as the line to Varese in 1885. A unique feature of this bridge is its double row of arches, designed to counteract the longitudinal flexion of the pillars.
Gallery
Side elevation and longitudinal section of the viaduct over the Gaggione river. Built at the end of the 19th century, it is located in the municipality of Malnate, between the stations of Malnate and Varese, at the 26+602 km point from the Varese - Laveno railway line. It consists of a series of arches on two levels in dry-fill stone masonry. 
Illustration of the Gaggione viaduct from issue 24 of the weekly paper “L’Ape Varesina” from 12 July 1885. 
A wonderful depiction of the viaduct from “L’illustrazione italiana” 
An unusual view through the arches of the middle span 
The viaduct photographed from the Gaggione river 
Side view of the viaduct in a recent photograph