Traffic engineers for the Tennessee Department of Transportation examined a stretch of State Route 840 in Williamson County on Thursday after a man was killed in an accident earlier this month.
Franklin businessman Richard Deslauriers was traveling on the roadway on the morning of January 16 when he lost control of his vehicle and crashed down a ravine.
State troopers previously said a bridge at mile marker 11 near the crash scene was icy and slick when the accident occurred.
While investigators say icy conditions were a factor in the crash, some questioned whether a guard rail extending from the bridge might have kept Deslauriers' vehicle from exiting the roadway.
On Thursday during their examination of the site of the fatal accident, officials said they plan to recommend adding 400 feet of guardrail to the area.
B.J. Doughty, TDOT Director of Community Relations and Communications, told Nashville's News 2 traffic engineers feel the guardrail will accomplish two things including protecting vehicles from striking the bridge, as well as preventing cars from going further into the creek bed.
The guardrails are expected to be installed in the next few weeks.