| State: | VT |
| Type: | Town |
| Route: | 143 |
| Map Custom: | yes |
| Map Notes: | Map of Windsor County in eastern Vermont with VT 143 highlighted in red |
| Maint: | the Town of Springfield |
| Length Mi: | 5.75 |
| Length Round: | 2 |
| Established: | May 1961[1] |
| Direction A: | West |
| Terminus A: | in Springfield |
| Direction B: | East |
| Terminus B: | in Springfield |
| Counties: | Windsor |
| Previous Type: | VT |
| Previous Route: | 142 |
| Next Type: | Town |
| Next Route: | 144 |
Vermont Route 143 (VT 143) is a 5.75-longNaN-long state highway within the town of Springfield in Windsor County, Vermont, United States. It connects VT 11 in Springfield to U.S. Route 5 (US 5) in Springfield. The entirety of VT 143 is maintained by the town of Springfield.
Route 143 begins in the west at an intersection with Route 11 in the center of town, just east of Route 106's southern terminus. The route heads eastward out of the town, and begins a windy journey, turning north, then east, then back to the north, and then to the northeast towards Interstate 91. Route 143 crosses underneath I-91 without an interchange, and continues to turn ever more northward until it reaches US-5, at which point the route is facing almost directly north - south.
This intersection is Route 143's eastern terminus, just feet from the banks of the Connecticut River and the state border with New Hampshire. This is an isolated area, however, and the nearest border crossings are nearly 5miles in each direction: Route 11 crosses the border to the south, southeast of Springfield, and Route 12 crosses the border to the north from Ascutney. These two routes, the closest major roads (aside from US-5) accessible from Route 143's eastern end, also provide the closest access to I-91, at exit 7 in the south and exit 8 in the north.