Spey Bridge, Newtonmore

The Spey Bridge, built in 1925-26, is a long, three-arched bridge designed by engineer Sir Owen Williams, with architectural input from Maxwell Ayrton. Constructed from reinforced concrete in the Modern Movement style, the arches diminish in height and span from south to north. The arches are segmentally shuttered and swept to form triangular cutwaters with inclined piers. Canted end piers incorporate refuges. The bridge slopes downwards from the higher ground on the south bank to the north.

Sir Owen Williams, a prominent engineer of the Modern Movement, designed several landmark bridges along the A9 in the Highlands. The design combines imaginative aesthetics with innovative structural techniques using reinforced concrete. Williams' intention was likely to create striking features within the landscape, and over time, the bridge has become integrated into its surroundings. Other bridges designed by Williams along the A9 include twin arch bridges at Loch Alvie and Crubenmore, larger bridges at Dalnamein and over the Findhorn at Tomatin, and a smaller single-span bridge at Dalnamein, all listed separately. Smaller bridges at Aviemore and Brora have undergone remodelling and are not listed.