ANY QUESTIONS: What happened to the traffic light at Nifong and Rock Quarry?

Friday, March 14, 2014 | 4:36 p.m. CDT; updated 2:18 p.m. CDT, Tuesday, March 18, 2014

Have a question about goings-on around town? This is part of a project called "Any Questions?" that takes on community curiosities and tries to address them. Submit your questions to or by using the form below this story.

COLUMBIA — On March 8, a reader sent us a fairly straightforward question: When and why did the city take down the traffic light at the intersection of East Nifong Boulevard and South Rock Quarry Road?

The short answer

In 2009, a traffic study indicated the volume of traffic on South Rock Quarry Road and East Nifong Boulevard didn’t require a signalized intersection, according to Steven Sapp, the city’s Public Works public information specialist.

The longer answer

After the study was conducted, the traffic light at the intersection of Rock Quarry and Nifong was changed and set to flash red in all four directions, effectively creating a four-way stop.

Nifong was the main east-west corridor before the new Grindstone Parkway was opened in 2000. Grindstone has taken much of the traffic that was previously on Nifong, Sapp said.

The traffic light was removed from the intersection of Nifong and Rock Quarry on Feb. 18. It now features a four-way stop. The light was instead moved to the intersection of Fairview Road and Ash Street, which was considered more appropriate, Sapp said. That traffic light isn’t functional yet, but it is in the process of being put up.

All of the traffic lights in Columbia are either maintained by the city of Columbia or the Missouri Department of Transportation, according to The light that used to be at the intersection of Nifong and Rock Quarry was maintained by the city.

Supervising editor is Shaina Cavazos.

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