Tyler police investigated after an 18-wheeler overturned on Loop 323 in Tyler at the Troup Hwy intersection on Monday, July 17.

From 4 p.m. to approximately 7 p.m., authorities expect to close all southbound lanes while they work to clear the area. They are asking that drivers find alternate routes. All other lanes will remain open.

Tyler police said crews are working to empty the contents of 18-wheeler so it can be turned upright. They expect the process to take 2 or 3 hours.

Good Samaritans who witnessed the accident pulled the truck driver from the wreck immediately after it happened. The truck driver was later examined by first responders and is not injured. He tells CBS 19 he was delivering peat moss from North Dakota to a location in East Texas.

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