The Texas Department of Transportation’s Austin District confirmed a major crash on I-35 South at Rundberg Lane in Austin, with at least one lane on the left-hand side fully blocked. Online traffic database SigAlert reported traffic along the interstate is backed up from Rundberg Lane to Yager Lane, approximately four miles away.

SigAlert data confirmed the crash-related congestion has led to stop-and-go traffic and up to hour-long delays. Online, the City of Austin’s traffic cameras captured shuttered traffic along the interstate just after 7 a.m. on Monday, with standstill traffic visible northward toward the intersection of I-35 and Braker Lane. 

It’s not the only crash confirmed in the Texas capital area during the weekday commute. Elsewhere, SigAlert reported a crash had happened along U.S. Highway 183 North at FM 973. That crash has resulted in three lanes being blocked, per TxDOT’s Austin District incidents page.