How to reach Jiuzhaigou from Chengdu besides taking a bus?

Hi, we are now staying in Chengdu and want to visit Jiuzhai Valley via Songpan. At the bus station in Chengdu they told us, that there are no busses going because of a landslide.
Is there a different way to reach Jiuzhai valley/Songpan except by plane?
Does anybody know when the road will be reopened?