The A156 road runs from the A57

A57 road

The A57 is a major road in England. It runs east from Liverpool to Lincoln, via Warrington, Cadishead, Irlam, Patricroft, Eccles, Salford and Manchester, then through the Pennines over the Snake Pass , around the Ladybower Reservoir, through Sheffield and past Worksop...

 and heads north to Gainsborough

Gainsborough, Lincolnshire

Gainsborough is a town 15 miles north-west of Lincoln on the River Trent within the West Lindsey district of Lincolnshire, England. At one time it served as an important port with trade downstream to Hull, and was the most inland in England, being more than 55 miles from the North...

. The road runs entirely within Lincolnshire

Lincolnshire

Lincolnshire is a county in the east of England. It borders Norfolk to the south east, Cambridgeshire to the south, Rutland to the south west, Leicestershire and Nottinghamshire to the west, South Yorkshire to the north west, and the East Riding of Yorkshire to the north. It also borders...

 right next to the border with Nottinghamshire

Nottinghamshire

Nottinghamshire is a county in the East Midlands of England, bordering South Yorkshire to the north-west, Lincolnshire to the east, Leicestershire to the south, and Derbyshire to the west...

. It is a single carriageway for its entire length. It is approximately 11 miles (17.7 km) long.

The road starts just west of Saxilby

Saxilby

Saxilby is a large village in the West Lindsey district of Lincolnshire, England, about north-west of Lincoln, on the A57 road at the junction of the B1241. It is part of the civil parish of Saxilby and Ingleby, along with the nearby village of Ingleby. Population of the civil parish in 2001 was...

 where it branches of from the A57 from Lincoln

Lincoln, Lincolnshire

Lincoln is a cathedral city and county town of Lincolnshire, England.The non-metropolitan district of Lincoln has a population of 85,595; the 2001 census gave the entire area of Lincoln a population of 120,779....

. It heads northwest through the village of Fenton

Fenton (near Saxilby)

Fenton is a village and civil parish in the West Lindsey district of Lincolnshire, England. It lies south from Brampton and west from Saxilby, on the A156 Lincoln to Gainsborough road....

. The A1133 from Newark-on-Trent

Newark-on-Trent

Newark-on-Trent is a market town in Nottinghamshire in the East Midlands region of England. It stands on the River Trent, the A1 , and the East Coast Main Line railway. The origins of the town are possibly Roman as it lies on an important Roman road, the Fosse Way...

 merges with the road slightly further on where it makes a sharp turn and heads north alongside the River Trent

River Trent

The River Trent is one of the major rivers of England. Its source is in Staffordshire on the southern edge of Biddulph Moor. It flows through the Midlands until it joins the River Ouse at Trent Falls to form the Humber Estuary, which empties into the North Sea below Hull and Immingham.The Trent...

 and the border with Nottinghamshire. Further on at Manton

Manton, North Lincolnshire

Manton is a village and civil parish located just south of the town of Scunthorpe, and about south west of the town of Brigg, Lincolnshire, England. The parish includes the hamlet of Cleatham. Cleatham was a civil parish between 1866 and 1936....

 the A1500 joins from the east. The A156 continues on to Lea

Lea, Lincolnshire

Lea is a small village and parish on the outskirts of Gainsborough, Lincolnshire. It is at the junction of the A156 and B1241, approximately 2 miles south of Gainsborough town centre and 14 miles north-west of Lincoln....

 where the B1241 joins from Saxilby then the road heads into Gainsborough where it terminates just south of the centre at the A631

A631 road

The A631 is a road running from Sheffield, South Yorkshire to Louth, Lincolnshire in England. It passes through the counties of South Yorkshire, Nottinghamshire and Lincolnshire. The road has many towns on its route including Rotherham, Maltby, Gainsborough and Market Rasen. It is mostly single...

. The A159

A159 road

The A159 is a 16 mile-long single carriage A-road, running between Scunthorpe and Gainsborough in Lincolnshire.- Route :...

 continues north from here through the town centre and north to Scunthorpe

Scunthorpe

Scunthorpe is a town within North Lincolnshire, England. It is the administrative centre of the North Lincolnshire unitary authority, and had an estimated total resident population of 72,514 in 2010. A predominantly industrial town, Scunthorpe, the United Kingdom's largest steel processing centre,...

.