despite these laws, oversized trucks continue to travel through the valley. in february 2016, the new infrared scanning system alerted to an oversize truck, recorded by nsw roads and maritime services as 15.2 metres long. during the vehicles removal, two additional over-sized trucks were stopped, escorted from galston gorge, and later fined. in june 2018, a truck crashed into tunks creek bridge, damaging the heritage site and spilling diesel on the surrounding area.