Nine Corvettes were swallowed when a three-story deep sinkhole opened up directly beneath the National Corvette Museum. Our team mobilized within hours to provide solutions.

The Project

A sinkhole at least 40-foot wide by 60-foot long and at least 35-foot deep opened directly beneath the National Corvette Museum’s Skydome in February 2014. The Corvette Museum Skydome houses the hall of fame and the most historic vehicles in the museum.

The Challenge

Collapsing of the bedrock roof above a prehistoric cave resulted in catastrophic failure of the floor of the museum. The resulting sinkhole swallowed seven collector-edition Corvettes. The variable, highly karstic subsurface conditions proved challenging for the entire construction team.

The Solution

Hayward Baker, Inc. (HBI) was called within hours of the collapse and had materials and man power on-site within days. 

With collaboration from all team members, HBI developed an efficient micropile design solution to safely stabilize the structure of the signature Skydome and spire and isolated the slab and structure from the risk of future collapse. The micropiles also allowed the vehicle extraction operations and additional study of the caves to be performed safely. Micropiles were capable of penetrating the underlying soil and rock efficiently.

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Project Facts

Owner

National Corvette Museum

Main Contractor(s)

N/A

Keller Business Unit(s)

Hayward Baker

Engineer

K & S Engineering, PLLC, Clarksville, TN