Traffic Alert: Northbound I-35 in San Marcos closed at River Ridge Parkway

All lanes of northbound Interstate 35 in San Marcos are closed near River Ridge Parkway due to a crash.

SAN MARCOS, Texas (KXAN) -- All lanes of northbound Interstate 35 in San Marcos are closed near River Ridge Parkway due to a crash.

The Texas Department of Transportation posted about the crash on X at 7:14 a.m.

San Marcos police said officers are investigating and working to clear lanes after a non-fatal accident involving a jackknifed 18-wheeler.

All lanes are closed near exit 208 (Carlson Circle) northbound. Traffic is being detoured at exit 208.

This is a developing story. Check back for updates.