GDOT reviews report of why Cobb Co. retaining wall collapsed - CBS46 News

GDOT reviews report of why Cobb Co. retaining wall collapsed

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Source: WGCL Source: WGCL

Looking at the Northwest Express lanes at Windy Hill in Cobb County, everything looks fine now that repairs have been made. However, back in June parts of the facade covering the retaining wall collapsed, spilling concrete and gravel on the road.

Although repairs are made, GDOT hasn't released details on what caused the wall to fail or what will be done in other areas since the collapse.

"We want to know what happened first before we determine how wide spread we need to go,” GDOT spokesperson Natalie Dale said. “But if we have to double and triple check every retaining wall to restore driver confidence in this project we certainly will."

CBS46’s Vince Sims learned GDOT has a draft report from the independent engineer. GDOT engineers are reviewing that report before releasing the details.

GDOT is not confirming what solutions are being used on the wall. But, when the wall was being repaired you could see there is space in between the wall and facade filled with gravel.

Now, in the repaired section, holes have been drilled in the facade with rebar sticking out. In other areas of the express lanes tubing has been installed a few feet deep in those holes. It appears to be for drainage, but GDOT is not yet saying if this is being done in response to the collapse.

GDOT says it is still working towards original completion timeframe of late summer, but are currently working through various things including, but not limited to, the wall repair, safety training, paving, stripping, and end to end testing.

GDOT says it won’t open the system until there is a safe and complete system for motorist, so the opening may be in the fall.  No exact date has been set.

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