This artful Double Arch Bridge is 1,572’ long and carries the Natchez Trace Parkway over a scenic valley known as Birdsong Hollow and Tennessee Route 96, about 8 miles west of Franklin, Tennessee. The structure contains two arch supports which mimic the nearby hilly terrain. The 582’ long symmetrical main span arch and the 462’ long span of the second asymmetrical arch make this double arch bridge visually pleasing.

The superstructure is a precast segmental trapezoidal box girder with variable depth ranging from 7’-6” at mid span to 14’-4” at the piers. Side slopes of the box remain constant, resulting in a variable width bottom soffit. The piers are designed as single-cell concrete box segments. Pier heights range from a maximum of about 140’ to a minimum of 43’. The piers are tapered in both directions.

The GM2 Complex Bridge Team designed the bridge and provided construction engineering inspection.