THE Fiji Roads Authority will assess the damage caused by rainfall to a culvert along the Sigatoka Valley Rd before implementing permanent measures.
FRA capital works manager Ian Hunter said the culvert at Namatewale bridge near Draiba was old.
Washed away by floodwaters after a heavy downpour on Tuesday night, the damaged crossing affected travel and movement of people living in the area.
The bridge was, however, partly repaired by the FRA and traffic flow improved remarkably by midday
"The culvert site is beyond the reconstruction project, so is quite old," Mr Hunter said.
"Until we know why it failed, it is not possible to say what measures we need to put in place to prevent this from happening again."
Draiba villager Tevita Ratu said Navosa experienced heavy rainfall over the past two days.
"The water was too strong for this old bridge so it went in the night, luckily the graders and diggers arrived early in the morning to patch the crossing."
Road conditions were made worse as a result of the downpour.