Approach and foot plant
Shorten your last two or three strides slightly so your takeoff foot arrives clean for a step onto the top of the barrier, not a jump over it. The step is legal and, below elite level, it's the faster technique for almost everyone, since hurdling the barrier cleanly at speed takes a level of confidence most runners don't have deep into a 3000m. Land your foot on top of the barrier with the leg bent, not locked straight, so you have something left to push off with.

