State Route 1 (US 431) Broadway ViaductDavidson County
The project along State Route 1 (US 431) consists of replacing the bridge, also known as the Broadway Viaduct, that crosses over 11th Avenue and the CSX Railroad in downtown Nashville, Davidson County.
Purpose and Need
Broadway is an urban principal arterial. Built in 1948, the existing Broadway Viaduct, the structure crossing over 11th Avenue and the CSX Railroad, is showing signs of deterioration and needs to be replaced.
The purpose of the project is to replace the existing structure.
The existing structure is approximately 700 feet long and 98 feet wide. It’s comprised of structural steel beams and support columns. The roadway consists of six 10-foot travel lanes (three in each direction) and one 12-foot center turn lane with one-foot shoulders, curb and gutter, and 10-foot sidewalks on both sides of the roadway.
The replacement structure will remain on the same alignment and general width of the existing structure. It will be comprised of concrete prestressed box beams and support columns. The roadway will maintain six 10-foot travel lanes (three in each direction) and one 12-foot center turn lane with one-foot shoulders and curb and gutter. On the southside, the sidewalk will be 10 feet. On the northside, the sidewalk will be 10 feet with an additional four-foot furnishing zone for a total pedestrian width of 14 feet to meet local standards.
A proposed connection to the Nashville Yards pedestrian bridge on the northside of the roadway will also be included with new construction.
The project is located along the heavily traveled Broadway corridor, an important route to traffic flow in and out of downtown Nashville. It is also in close proximity to developments, historic sites, and active CSX rail lines. In an effort to reduce construction impacts, accelerated bridge construction techniques and alternative delivery methods are being considered.
For more information, visit the Timeline section of the project website.
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