10 bridges with vertical clearance data on US-321 in Tennessee. Lowest: 165.0ft.
| Clearance | Carries | Crosses | Location | Built | Map |
|---|---|---|---|---|---|
| 165.0ft | Fau 67 | Us-321 / Happy Valley Rd | Sw Of Elizabethton | 1986 | Map |
| 173.9ft | Fau 67 | Us-321 / Sparks Rd | Sw Of Elizabethton | 1986 | Map |
| 176.8ft | Fau 67 | Us-321 / Sparks Rd | Sw Of Elizabethton | 1986 | Map |
| 180.1ft | Fau 67 | Us-321 / Happy Valley Rd | Sw Of Elizabethton | 1986 | Map |
| 189.0ft | Fap 73 | Foothills Pkwy (A820) | 1.8 To End Of Nps Rte 8 | 1987 | Map |
| 203.7ft | Fap 73 | Foothills Pkwy (A820) | 1.8 To End Of Nps Rte 8 | 1968 | Map |
| 221.8ft | Fap 73 347609A | Csx Railroad | Nw.Of Maryville | 1977 | Map |
| 224.7ft | Fap 73 347609A | Csx Railroad | Nw. Of Maryville | 1977 | Map |
| 247.4ft | Fau 67 | Sr-359 & Buffalo Creek | Just Sw Of Elizabethton | 1986 | Map |
| 249.7ft | Fau 67 | Sr-359 & Buffalo Creek | Just Sw Of Elizabethton | 1986 | Map |