A74(M) and M74 motorways

M74
Route information
Part of E05
Length	40 mi (64 km)
Existed	1966–present
History	Constructed 1966–2011
Major junctions
Northwest end	Tradeston 55°51′14″N 4°16′13″W / 55.85383°N 4.270399°W / 55.85383; -4.270399 (M74 motorway (northern end))
Major intersections	J1 → M8 motorway J4 → M73 motorway J13 → A74(M) motorway
Southeast end	Abington 55°30′24″N 3°41′51″W / 55.5067°N 3.6974°W / 55.5067; -3.6974 (M74 motorway (southern end))
Location
Country	United Kingdom
Primary destinations	Glasgow, Hamilton, East Kilbride
Road network
Roads in the United Kingdom Motorways A and B road zones
← M73 → M77

A74(M)
Route information
Part of E05 and E18
Length	45 mi (72 km)
Existed	1991–present
History	Constructed 1991–1999
Major junctions
Northwest end	Abington (See M74 above.)
Major intersections	J13 → M74 motorway J22 → M6 motorway
Southeast end	Longtown 54°59′51″N 3°03′22″W / 54.9975°N 3.0562°W / 54.9975; -3.0562 (A74(M) motorway (southern end))
Location
Country	United Kingdom
Primary destinations	Dumfries, Carlisle
Road network
Roads in the United Kingdom Motorways A and B road zones
← A66(M) → A167(M)

The A74(M) and M74 form a major motorway in Scotland, connecting it to England. The routes connect the M8 motorway in central Glasgow to the Scottish-English border at Gretna. In conjunction with their southward continuation, the M6 motorway, they form one of the three major cross-border routes between Scotland and England.^{[clarification needed]} They are part of the unsigned international E-road network E05. Although the entire route is colloquially referred to as the M74, for more than half its length, south of Abington, the road is officially the A74(M); see naming confusion below.