Earnscleugh Bridge is a single-lane through road bridge with stone piers and abutments, and a pedestrian walkway on the east side, separated from the roadway. The piers and abutments date back to the first bridge over the Clutha River at Clyde, built in 1874. That bridge was originally a suspension bridge. Floods twice destroyed the suspension structure. There are two stone piers on the riverbank. The piers are constructed of shaped, rusticated stone with a central arch. The wing walls are made of stacked stone with a vertical stone coping. The original towers above deck level have been removed, and concrete piles remain on both the west and east sides of the bridge. Thornton describes the main bridge, 61.4 meters long, as a Pennsylvania camelback truss with varying inclinations along the upper cable length, two further spans of 13.4 meters, and two of 6.7 meters.