New express bus lanes put on Victoria Parade as part of a multimillion-dollar project have already washed away just weeks after they were painted on.

The lanes are so fresh that a timetable revamp associated with their creation has not even taken effect yet.

Victoria Parade's bus lane markings lifted and washed off due to heavy rain. Credit:Justin McManus

They were installed by CityWide, as part of a project managed by VicRoads. VicRoads staff inspected the lanes on Tuesday, after being alerted to the damage by Fairfax Media.

Brendan Pauwels, the authority's metropolitan projects director, said engineers were trying to work out why the paint had washed away.