GREEN RIVER, Wyo. — A major tunnel for an interstate highway in Wyoming is close to being back to normal after a massive pile-up and fire in the tunnel claimed three people's lives earlier this year.

The Green River Tunnel cuts through Castle Rock in Sweetwater County, with one tunnel in each direction of I-80.

On Feb. 14, a chain reaction of vehicle crashes, involving multiple semitrailers, caused a fire in the westbound tunnel. Three people were killed: 20-year-old Christopher Johnson of Rawlins, Wyo., 22-year-old Quentin Romero of Rawlins, and 30-year-old Harmanjeet Singh of Nova Scotia, Canada.

WATCH: Drone video shows devastation left behind in Wyoming tunnel FULL VIDEO: Drone shows devastation left behind in Wyoming tunnel

Since Feb. 20, the tunnel has remained partially o

See Full Page