Highway meltdown: The bitumen is bleedingSCOTT HAMMOND/STUFF The road surface in the Wairau Valley, west of Blenheim, has reached 60 degrees Celsius, causing the bitumen to melt and rise to the surface. SCOTT HAMMOND/STUFF Tyre tracks in the melted bitumen on State Highway 63. "We've had some areas where the bitumen has started bleeding on State Highway 6, and State Highway 63 [in Marlborough] was particularly bad towards the end of last week. Bitumen bleed happened when bitumen below the chip seal melted and rose to the road surface, which increased the risk of skidding. SCOTT HAMMOND/STUFF Melted bitumen on the road surface increases the risk of skidding.

Source: Stuff December 11, 2017 04:06 UTC