The A146 is an A road that connects Norwich in Norfolk and Lowestoft in Suffolk, two of East Anglia's largest population centres.

[2][3] The A146 then runs south-easterly out of the city, a direction it generally continues in for the rest of its route, initially as a section of dual carriageway around 1 mile (1.6 km) in length, crossing the main Norwich to London railway line and the River Yare and bypassing the village of Trowse.

After leaving Norwich the A146 returns to a single carriageway and runs through a rural section towards the town of Beccles on the Norfolk-Suffolk border.

After passing the grounds of Langley School it then bypasses the village of Chedgrave and the market town of Loddon, crossing the River Chet in the process.

The road briefly becomes the A143 for around 1 mile (1.6 km) before another roundabout on the northern edge of Gillingham where the A143 continues to the north-east towards Great Yarmouth.

[2] The road then bypasses Gillingham and crosses the River Waveney, passing into Suffolk, before reaching the northern edge of the market town of Beccles at a roundabout.

[4] Both villages are bypassed to the south by the modern road before it reaches the edge of the Lowestoft built up area at Carlton Colville.