Multilane divided pavements must be inclined in the same direction. The recommended pavement cross slope is 2 percent. Shoulders should be sloped sufficiently to drain surface water but not to an extent that safety concerns are created for vehicular use.

To facilitate pavement drainage, highways with three or more lanes inclined in the same direction should have an increasing cross slope as the distance from the crown line increases. In these cases, the first two lanes adjacent to the crown line may be sloped flatter than normal – typically at 1.5 percent but not less than 1 percent. The cross slope of each successive pair of lanes (or single lane if it is the outside lane) outward from the crown should be increased by 0.5 to 1 percent from the cross slope of the adjacent lane. A cross slope should not exceed 3 percent on a tangent alignment unless there are three or more lanes in one direction of travel.

Bridge structures with three or more lanes in one direction should maintain a constant slope of 2.5 percent, transitioning before and after the bridge accordingly.