Big Rig overturns blocking 610 West Loop to 1-10 Katy Freeway

HPD is investigating an overturned 18 wheeler on the westbound I-10 entrance ramp from 610 southbound on the west side of Houston.  

Apparently an 18 wheeler with a flatbed, carrying large marble tiles was traveling southbound on 610.  When the driver went into the westbound entrance ramp of I-10 he lost control of the truck and flipped it.  The truck is blocking both lanes of the entrance ramp and that ramp is impassable to all vehicle traffic.