SOME bridges along the 70 kilometre Dreketi Nabouwalu Highway had to be redesigned by China Railway First Group (Fiji) Company Limited after a request was made by the Fiji Roads Authority.
FRA chief executive officer Neil Cook said the authority requested for a redesign after their consultants, MWH, found the designs were not according to their standards.
"The original design for the bridges was not to a sufficiently high standard for the location and climate," he said.
"As one example the concrete strength was below what is required to produce a bridge that will last for the 50 to 100 years that we need it to last for.
"The redesigned structures will be much more durable and resilient to the harsh environment — particularly where they are exposed to the marine environment."
The new designs would come at an added cost .