WOODLAND (CBS13) — A big rig cab ended up perched precariously on a guardrail after a crash along Interstate 5 in Woodland early Tuesday morning.

The crash happened a little before 5 a.m. along the southbound side of the freeway near East Main Street.

BigRig sits precariously on guard rail after early morning crash. This is SB I-5 near East Main St in Woodland. SB on ramp blocked. One lane blocked SB but I5 open. @GoodDayTraffic @GoodDaySac @CBSSacramento @JohnDabkovich @DinaKupfer @allyaredas pic.twitter.com/AQZvqmyVxP

— DG (@CameraGuyDave1) April 20, 2021

Exactly what led up to the big rig crashing is unclear, but the wreck left the southbound onramp blocked.

One lane of I-5 was blocked by the incident as crews worked to right the big rig.

By 7 a.m., the E. Main Street onramp was reopened.

The driver of the big rig was not hurt in the crash, officers say.