8:40 p.m. update: The northbound lanes of Texas 130 have reopened after a crash.

Earlier: The northbound lanes of Texas 130 have been completely shut down near Howard Lane after a two-vehicle crash involving an 18-wheeler.

Travis County sheriff's officials said the 18-wheeler flipped during the crash, just north of the Howard Lane/Gregg Manor Road exit.

All traffic headed north is being pushed off the highway at that exit.

It is unclear whether anyone was injured. Drivers are asked to avoid the area if possible and to expect heavy delays.