A diversion will be in place as bus services will be affectedThe PortwayThe Portway(Image: Google )

A major route into Bristol city centre will close in one direction for two nights as part of a long-running project aimed at improving the A-road.

The A4 Portway will close to northbound traffic tomorrow night (Wednesday, December 10) and Thursday night (December 11).

The closure will begin at 9pm on both nights, and the road will reopen at 5am the following day.

The closure is part of the A4 Portway transport corridor project, which Bristol City Council says will address congestion and improve the reliability of buses.

The closure will begin at Bennett Way and Cumberland Basin Road (also affecting Hotwell Road), and end at Hadrian Close, in Stoke Bishop.

Barriers on the road will be relocated to prepare for the next stage of work.

On Thursday night, Wessex Water will replace a damaged manhole cover located on the Portway.

Pedestrians and cyclists will be able to use the shared-use pavement throughout the closure; however, vehicles will be diverted through Sea Mills, Stoke Bishop, Clifton and into the city centre before travelling through Hotwells.

The 9, 37 and 41 bus services, travelling northbound, will also be affected by the closure and will travel a diverted route.

The Hotwell Road West and Merchants Road bus stops will be part-suspended for the 41 service. The latter bus stop will also be suspended for the 9 service.

The Roman Way North and Riverleaze Northwest bus stops will be fully closed.

The project will create new 24-hour bus lanes and will improve some of the junctions along the route, which stretches from the city centre to Avonmouth and the M5 J18.