Mbale-Tirinyi road has been closed off after River Mpologoma flooded on Monday night, order disrupting traffic to Eastern Uganda.
Officials said one of the diversions created by the road contractor, Dott Services, has been washed away.
Other sections of the road are too slippery for vehicles.
This compelled Uganda National Roads Authority (UNRA) officials to create a diversion of heavy traffic onto Pallisa road.
UNRA media relations chief, Allan Ssempebwa expressed hope that the road will be restored for use before close of business today.
He said this includes “opening up access and ensuring the entire route is accessible and passable for all vehicle types.”
The river overflow was caused by a heavy downpour on Monday night.
“There was heavy downpour since last evening that affected the diversions created by the contractor along Nakalama-Tirinyi-Mbale road,” said Ssempebwa.
“This rendered them impassable and slippery.”
He said traffic for heavy vehicles has since been diverted to Tirinyi-Pallisa-Kamonkoli road as the contractor moves to ensure the slippery sections are worked on to restore access.
Dott services has previously faced accusations of poor workmanship, allegations it denies.
But UNRA said it was “doing all we can to ensure the contractor matches up to the standard and speed” as expected on Nakalama-Tirinyi-Mbale road works.
Lack of road markings and warning signs he are reported to have caused several incidents along Mbale-Tirinyi Road.