# Maine State Route 6

State Route 6 (SR 6) is part of Maine's system of numbered state highways, running from west to east across the state. Its western terminus is at the Canada–United States border near Sandy Bay (a terminus it shares with U.S. Route 201), where it connects to Quebec Route 173. Its eastern terminus is at the Canada-US border in Vanceboro, where it connects to New Brunswick Route 4. SR 6 is the only highway in Maine to terminate at the Canadian border at both ends. With a length of 207.23 miles (333.50 km), it is the third-longest state highway in Maine. Much of SR 6 runs through isolated parts of the state.
More than two-thirds of the length of SR 6 is concurrent with other highways. The only section not shared with another route is from its junction with US 2 in Lincoln east to the New Brunswick border, covering 61.87 miles (99.57 km). Except for this section, locals generally refer to the roads by their other numbers.

## History

The SR 6 designation was first applied in 1937-8 on a short route in Old Orchard Beach which became part of SR 98 in 1946. In 1949, the number was applied to the modern routing between Lincoln and the New Brunswick border. In 1965, SR 6 was extended west to its modern terminus at the Quebec border by overlapping it entirely with existing highways. This remains its routing today.

## Junction list

| County | Location | mi | km | Destinations | Notes |
| Somerset | Sandy Bay | 0.00 | 0.00 | R-173 north – Quebec PQ | Continuation beyond Armstrong–Jackman Border Crossing into Québec |
| Somerset | Sandy Bay | 0.00 | 0.00 | US 201 begins | Western end of concurrency with US 201; northern terminus of US 201 |
| Somerset | Jackman | 16.41 | 26.41 | US 201 south – The Forks, Skowhegan, Bingham SR 15 begins | Eastern end of concurrency with US 201; western end of concurrency with SR 15; northern terminus of SR 15 |
| Piscataquis | Abbot | 86.11 | 138.58 | SR 16 west (West Road) – Bingham, Mayfield | Western end of concurrency with SR 16 |
| Piscataquis | Guilford | 89.91 | 144.70 | SR 150 south (South Main Street) – Skowhegan | Western end of concurrency with SR 150 |
| Piscataquis | Guilford | 90.28 | 145.29 | SR 150 north | Eastern end of concurrency with SR 150 |
| Piscataquis | Guilford | 91.28 | 146.90 | SR 23 – Dexter, Newport | Northern terminus of SR 23 |
| Piscataquis | Dover-Foxcroft | 97.94 | 157.62 | SR 15 south to SR 7 – Bangor, Dexter | Eastern end of concurrency with SR 15 |
| Piscataquis | Dover-Foxcroft | 98.02 | 157.75 | SR 153 (North Street) – Peaks-Kenny State Park | Southern terminus of SR 153 |
| Piscataquis | Milo | 111.13 | 178.85 | SR 11 north (Main Street) – Brownville | Western end of concurrency with SR 11 |
| Piscataquis | Milo | 113.37 | 182.45 | SR 11 south (Lyford Road) – East Corinth | Eastern end of concurrency with SR 11 |
| Penobscot | LaGrange | 121.00 | 194.73 | SR 155 south (Mill Street) – Bradford SR 16 east (Bennoch Road) – Orono | Eastern end of concurrency with SR 16; western end of concurrency with SR 155 |
| Penobscot | Howland | 131.41– 131.62 | 211.48– 211.82 | I-95 – Bangor, Medway, Houlton | Exit 217 on I-95 |
| Penobscot | Howland | 132.75 | 213.64 | SR 116 south (Argyle Road) – Argyle, Old Town | Western end of concurrency with SR 116 |
| Penobscot | Enfield | 133.35 | 214.61 | US 2 west (Main Road) – Passadumkeag SR 155 north (Hammett Road) – Enfield | Eastern end of concurrency with SR 155; western end of concurrency with US 2 |
| Penobscot | Lincoln | 143.56 | 231.04 | SR 116 north (River Road) to I-95 | Eastern end of concurrency with SR 116 |
| Penobscot | Lincoln | 145.15 | 233.60 | SR 155 – Enfield | Northern terminus of SR 155 |
| Penobscot | Lincoln | 145.36 | 233.93 | US 2 east – Mattawamkeag, Winn | Eastern end of concurrency with US 2 |
| Penobscot | Lee | 156.92 | 252.54 | SR 168 (Winn Road) – Winn | Southern terminus of SR 168 |
| Penobscot | Springfield | 165.00 | 265.54 | SR 169 / SR 170 (Park Street) – Prentiss | Southern terminus of SR 169 / SR 170 |
| Washington | Topsfield | 185.81 | 299.03 | US 1 – Calais, Danforth | |
| Washington | Vanceboro | 207.23 | 333.50 | Route 4 – St. Croix, McAdam | Continuation beyond Vanceboro–St. Croix Border Crossing on the Saint Croix–Vanceboro Bridge over St. Croix River into New Brunswick |
| 1.000 mi = 1.609 km; 1.000 km = 0.621 mi Concurrency terminus ||||||