The Bridge Centre roundabout forms a junction of the A4 with the A420 Bristol Road.
The route heads over Rowden Hill past the Chippenham Community Hospital and down to the spot where musician Eddie Cochran was killed in a car crash on 17 April 1960.
A plaque has been placed there in remembrance.

From there it passes under the railway arch built by Isambard Kingdom Brunel in the 1830s and on to its junction with the A350.
From this point onwards it regains its trunk road status and heads up Chequers Hill towards Corsham.
The road passes through Pickwick, which used to be a village in its own right.
Charles Dickens stayed at the Hare & Hounds Inn and used the village name for the title of his novel The Pickwick Papers.

After a series of roundabouts the A4 continues uphill, past what used to be the Ministry of Defence Naval Operations site at Copenacre (now a housing development) before descending steeply to the village of Box.
 From the road the Box Tunnel, built as part of the Great Western Railway, can be seen clearly.
The road bears to the right at the junction with the A365 to Melksham, and criss-crosses with the main railway line as far as the roundabout at Bathford which forms a junction with the A363 towards Bradford-on-Avon.
The road after this roundabout becomes a dual carriageway until the A4 diverts to the left down a slip road, and the remainder becomes the A46; this section, the  3-mile (4.8 km) £45 million dual-carriageway Batheaston/Swainswick Bypass, opened in summer 1996, was highly controversial both at planning and at construction stages.

The route enters the outskirts of Bath passing by the training grounds of Bath RFC.
After a series of traffic light controlled junctions, the A4 continues straight ahead where it meets the A36.
It passes Hedgemead Park and down The Paragon before crossing into George Street and to Queen Square.
The Bridge Centre roundabout forms a junction of the A4 with the A420 Bristol Road. The route heads over Rowden Hill past the Chippenham Community Hospital and down to the spot where musician Eddie Cochran was killed in a car crash on 17 April 1960. A plaque has been placed there in remembrance.
From there it passes under the railway arch built by Isambard Kingdom Brunel in the 1830s and on to its junction with the A350. From this point onwards it regains its trunk road status and heads up Chequers Hill towards Corsham. The road passes through Pickwick, which used to be a village in its own right. Charles Dickens stayed at the Hare & Hounds Inn and used the village name for the title of his novel The Pickwick Papers.
After a series of roundabouts the A4 continues uphill, past what used to be the Ministry of Defence Naval Operations site at Copenacre (now a housing development) before descending steeply to the village of Box.  From the road the Box Tunnel, built as part of the Great Western Railway, can be seen clearly. The road bears to the right at the junction with the A365 to Melksham, and criss-crosses with the main railway line as far as the roundabout at Bathford which forms a junction with the A363 towards Bradford-on-Avon. The road after this roundabout becomes a dual carriageway until the A4 diverts to the left down a slip road, and the remainder becomes the A46; this section, the  3-mile (4.8 km) £45 million dual-carriageway Batheaston/Swainswick Bypass, opened in summer 1996, was highly controversial both at planning and at construction stages.
The route enters the outskirts of Bath passing by the training grounds of Bath RFC. After a series of traffic light controlled junctions, the A4 continues straight ahead where it meets the A36. It passes Hedgemead Park and down The Paragon before crossing into George Street and to Queen Square.
A4 road (England)