An unknown vehicle collision is backing up traffic on I-35 in Salado.
According to TxDOT, the accident is on southbound Interstate 35 at FM 2843 in Salado.
Traffic is backed up to Salado Plaza Dr/Williams on exit 286.
The backup is about two to four miles, according to TxDOT.
Copyright 2017 KXXV. All rights reserved.
