Work is continuing to clear the slip in the Waimana Gorge in eastern Bay of Plenty but the road will need to stay partially closed.

The road closed Sunday night after heavy rain and opened to one lane yesterday afternoon, says The NZ Transport Agency.

NZTA Bay of Plenty Transport System Manager, Rob Campbell, says further inspection has revealed more debris may fall.

'Our specialists have identified there could be another slip in the same area so to keep people and workers safe the barriers will be moved to make more of the road one lane.

'It's likely to stay one lane until later this week while we wait for forecast heavy rain to pass. Work to clear the slip will continue when it's safe to do so.

'We'd like to apologise in advance for any delay the clearing work may cause. People should check the NZTA website, NZTA local social media or call 0800 4 HIGHWAYS before they travel."

To stay updated:

• Phone 0800 4 HIGHWAYS (0800 44 44 49)

• Website: nzta.govt.nz/traffic

• Facebook: facebook.com/NZTAWaikatoBoP/

• Twitter: twitter.com/nztawaibop

• Journey planner: journeys.nzta.govt.nz