Example video title will go here for this video

SEATAC, Wash. — Northbound Interstate 5 lanes in SeaTac have reopened after they were closed for several hours as crews repaired a guardrail following a crash early Wednesday morning.

The repairs were required after a semi-truck struck the guardrail on the right side of the roadway shortly before 5 a.m. The closure was lifted just after 2:30 p.m.

The crash had closed the right lanes, which caused a significant backup. By 7:35 a.m., the backup was 6 miles long, according to the Washington State Department of Transportation.

>> Download KING 5's Roku and Amazon Fire apps to watch live newscasts and video on demand

Roughly 25 sections of the rail, including 100 posts, were damaged and had to be fixed.

Here's a picture of the collision from this morning. The guardrail you see is currently under repair now, which requires the two right lanes of northbound I-5 to be closed. Please drive slowly and cautiously through our work zone. pic.twitter.com/66P5ZliHJt

This is a developing story. Check back for updates. 

Download our free KING 5 app to stay up-to-date on news stories from across western Washington.

Notifications can be turned off anytime in the browser settings.