Arnold Drive Bridge, historic truss bridge in Eldridge, California, United States.

Arnold Drive Bridge is a steel and concrete structure built in 1930 that spans Sonoma Creek. It connects Eldridge with Glen Ellen and measures roughly 143 feet with a simple Parker Through truss design visible beneath the roadway.

Built in 1930 over Sonoma Creek, the bridge replaced a collapsed concrete crossing. By 2000 it was in disrepair and the county planned a concrete replacement; Glen Ellen resident Jim Berkland, who had played on the bridge as a child in the 1940s, petitioned to save it. The county agreed to maintain it, and in 2020 it was memorialized as the Jim Berkland Memorial Bridge.

Locals call it the Jim Berkland Memorial Bridge, a name given in 2020 to honour the Glen Ellen resident who, as a boy in the 1940s, played on and around the span. When the county planned a concrete replacement around 2000, Berkland gathered signatures and petitioned to keep the steel truss. The county agreed to maintain it, and it is listed as Sonoma County historic landmark #169.

The bridge is open daily to traffic and crosses Sonoma Creek on Arnold Drive. Visitors should note that roughly 14,000 vehicles use it each day and that maintenance work on the steel structure occurs periodically.

The bridge is listed as historic landmark #169 by Sonoma County, though it is not eligible for the National Register of Historic Places. Its Parker Through truss carries about 13,900 vehicles a day between Eldridge and Glen Ellen.