The total interruption to traffic in a year should not exceed ______

The structure provided on the pavement to remove the storm water is _______

The number of steps followed for surface drainage system is ______

If the span exceeds 6m then the bridge is called ______

The number of important factors for highway engineer are _______

The highest point provided on the pavement is _______

The sustained contact with water cause failure due to ______

The process of removing and controlling excess surface and sub soil water within roadway is _______