Minnesota Department of Transportation

511 Travel Info

Historic Bridges

Bridge L8507

Bridge L8507

Bridge L8507

See features of the bridge

History and significance

Bridge L8507 is a single-span, reinforced-concrete, filled-spandrel, barrel-arch bridge constructed in 1912. It carries Seven Bridges Road (also known as Snively Boulevard) over Amity Creek in Duluth, and was one of eight stone-faced bridges along the boulevard that were designed by the Minneapolis firm of Morrell and Nichols. Four of the historic bridges, including this one, remain. Seven Bridges Road is a contributing segment to the Skyline Parkway Historic District and Bridge L8507 is significant as a contributing structure to the district.

Rehabilitation activities

Bridge L8507Bridge L8507 underwent a major rehabilitation in 2000, when the entire bridge was repointed, the bituminous roadway was replaced, the railings were disassembled and re-built, and the underside of the arch was repaired. The northeast approach shoulder was washed out during the June 2012 flood event and is planned to be repaired in the summer of 2014.




City of Duluth (St. Louis County)
Latitude, Longitude: 46.85945956, -92.01406472

Bridge features

Bridge L8507

Neoclassical architectural details found on the reinforced-concrete arch with rustic stone masonry headwalls, wingwalls, and railings. The bridge features Neoclassical stylistic treatment as seen in the defined abutment pilasters, a defined stringcourse separating the railing, and heavy stone caps atop the railing and pilasters.

Bridge L8507

Skyline Parkway setting. The bridge is located along the Seven Bridges Road, part of the National Register-eligible Skyline Parkway.