Noon Thursday update:
Route 21 is now open in both directions after Wytheville's train derailment.
Part of the road, also known as Grayson Rd., will be down to one lane. That lane will open at night.
Flaggers will be directing traffic throughout the day.
Workers are removing the wreckage -- a process that will likely take several more days, according to the Virginia Department of Transportation.
5:00 p.m. Wednesday update:
Route 21 will be closed Thursday beginning at 7 a.m. to drivers heading south. Those traveling from Speedwell to Wytheville will be detoured onto Old Stage Road and High Bridge Road.
Officials will allow traffic heading north on Grayson Turnpike to continue throughout the day. However, drivers may encounter delays.
According to Norfolk Southern, crews will be working during daylight hours to throughout the workweek to clean up wrecked cargo from the scene. They hope to be finished by Friday.
Both lanes of Route 21 will be open after crews have finished working for the day.
9:15 a.m. Wednesday update:
Route 21 is closed again to the public.
Grayson Turnpike, which was opened to the public last night, is now closed as workers begin the process of removing the Norfolk Southern train wreckage.
Traffic between Speedwell and Wytheville is being diverted to Winding Road / Old Stage Rd.
Local officials say the closure will last throughout much of the day.
In addition to Grayson Rd., W. Railroad Avenue remains closed to through traffic.
The rail line itself is open now.
11:35 p.m. update:
Route 21 is now open to the public, however, local officials are advising motorists to use caution, as crews will be working in the area throughout the days to come.
Officials say it could be another day before the tracks are free and clear.
Norfolk Southern is paying for the cleanup and any damage done to private property.
The National Transportation Safety Board (NTSB) will investigate the cause of the derailment.
We checked with the State Corporation Commission. It has a utility and railroad safey division that inspects train tracks every 90 days.