Showing posts with label skydome. Show all posts
Showing posts with label skydome. Show all posts

Thursday, September 3, 2015

National Corvette Museum Holds Ribbon Cutting for Skydome Post Sinkhole Construction

Milestone 1-Millionth Corvette Unveiled as Part of the Ceremony

It’s official! A year and a half after a large sinkhole formed in the Skydome of the National Corvette Museum, the 13 story iconic landmark is back, better than ever, with all eight “sinkhole Corvettes” returned to display. Though the Skydome re-opened to visitors on July 6, a ceremonial ribbon cutting (or rather, caution tape cutting) was held as part of the Museum’s 21st Anniversary Celebration.

What could have been a major road block for the Museum became more of a speed bump as the sinkhole is credited with the 67% increase in visitors for 2014. Instead of immediately filling the sinkhole and restoring the Corvettes, the Museum “made lemonade” and embraced the international news-making occurrence, putting nature’s handiwork on display for most of 2014.

“The success of the sinkhole saga could not have been possible without the help and support of several key players,” said Katie Frassinelli, Museum spokesperson, at the dedication event. Frassinelli stressed how fortunate the Museum was that no one was in the building when the collapse occurred while thanking the construction crew and insurance company for also embracing the new attraction. “They have entertained our crazy requests – from saving sinkhole boulders for our landscaping, to salvaging dirt and rock that we bottled for sale in the Corvette Store,” she said. Frassinelli also commented that much of the Museum’s positive outcome from the sinkhole collapse is a result of being able to release video footage of the collapse as it occurred, and later allowing visitors to stand mere feet from the sinkhole to get an up close view.

“There is one chapter left to our story,” Frassinelli said. “Late this fall we are excited to welcome a special exhibit called Corvette Cave-In: The Skydome Sinkhole Experience. Visitors will learn the particulars of sinkholes, karst landscapes, and caves as well as what happened, why it happened, details on the eight Corvettes and how they were recovered and restored, and how the building was structurally repaired. The tour ends as the cave they are visiting virtually collapses over their heads to reveal their location underneath the Museum.”

The ceremony concluded with the caution tape cutting before rolling into a seminar on the restoration of the 1992 “1-millionth” Corvette. After more than four months and 1,200 man-hours of painstaking craftsmanship by the GM team, the restoration of the milestone car is complete, and the Corvette was unveiled in the Skydome.

The 1-millionth Corvette was one of the eight cars that fell victim to the February 12, 2014 sinkhole. And Chevrolet quickly came forward and pledged to restore it. After being rescued from the sinkhole, the 1-millionth Corvette was moved from the Museum to the Design Center on GM’s Technical Center campus in Warren, Mich., for restoration.

“As the one and only 1-millionth Corvette, its preservation was important to us as the designers of the vehicle – and as Corvette enthusiasts,” said Ed Welburn, vice president of GM Global Design. “The damage was significant in many ways; however we have one of the most highly skilled specialty shops and team of people in the industry, so they were fully prepared to take on the challenge.”

“Chevrolet is proud to have helped restore this extremely significant car in Corvette's long, storied history," said Mark Reuss, GM executive vice president, Global Product Development, Purchasing and Supply Chain. "When we disassembled it, we found that each employee involved in building it had signed a part of the car, which was fantastic and moving to see. It brought the history to life, and reinforced the importance of the project."

Despite extensive damage, GM’s team vowed to preserve and repair as many original components as possible – a decision that involved posterity as much as history, in order to preserve those signatures of the Bowling Green Assembly workers who built the car.

Only two signed components couldn’t be saved, so the team had the autographs scanned, reproduced as transfers and placed on the replacement parts.

One component with a single signature from Bowling Green Assembly employee Angela Lamb was too damaged to save or even accurately scan for her autograph. Lamb joined event attendees for the big reveal, signing her name on the replacement part. The 1-millionth Corvette is now historically accurate down to the last signature.

Among the parts replaced were the hood, front fascia and the lower panels between the front wheels and doors, as well as a number of ancillary supporting components under the hood. The replacements came from a vehicle of the same vintage and color, ensuring authenticity of the parts and materials involved with the restoration.

A few other components, such as the rear fascia and front exhaust system, would have probably been replaced in almost any other restoration project, but the team repaired them because they were also covered in signatures.

Additional highlights from the restoration:


  • The front sub-frame was damaged in the fall into the sinkhole and required straightening
  • The wheels were damaged, but reconditioned, with the original Goodyear Eagle GS-C tires
  • Rather than replace the scuffed and scratched pad on the instrument panel, its soft cover was carefully removed and replaced to preserve the employee-signed structure beneath it
  • The red leather seats, featuring one-off “1,000,000th Corvette” embroidery on the headrests were damaged but deemed irreplaceable, so they were restored, including a few replacement patches of carefully matched hide
  • The 5.7L LT1 engine, transmission and other drivetrain components were inspected and found to be damage-free


Surprisingly, the one component the team didn’t have to replace was the crushed windshield header. When the car first rolled into the shop, an overhead crane was used to raise it enough to make the car drivable, but the frame pulled up surprisingly close to the original position, encouraging the team to save it.

“The header restoration was a wonderful surprise for what everyone assumed would be the toughest aspect of the restoration,” said Bolognino. “With access to the original specifications, we got it spot-on – and even the new windshield glass dropped in perfectly.”

The final touch was replacing the unique “1,000,000th” windshield banner it wore when it rolled off the assembly line 23 years ago. The computer graphic file used for the original was still available, allowing creation of an identical banner.

The 1-millionth Corvette is the second sinkhole-damaged Corvette that Chevrolet has restored. The first, a 2009 Corvette ZR1 prototype known as the Blue Devil, was only lightly damaged and was returned to its original condition last fall.

The National Corvette Museum’s new Maintenance and Preservation Department will restore the third car, a 1962 Corvette. The five additional Corvettes swallowed by the sinkhole will remain in their as-recovered state to preserve the historical significance of the cars.

FAST FACT: The 1-Millionth Corvette rolled off the assembly line as a convertible with a white exterior and a red interior - just like the first Corvette produced in 1953.






Thursday, March 19, 2015

Sinkhole Surveying Nets Engineering Award

Ric Federico, EnSafe and Wendell Strode, Corvette Museum
On February 12, 2014, eight classic Chevrolet Corvettes were swallowed by a sinkhole that opened up beneath the Skydome of the National Corvette Museum in Bowling Green, Kentucky. A year later, the technology used to survey the sinkhole and surrounding areas nets local company EnSafe an award.

"Every year the American Council of Engineering Companies (ACEC) - Tennessee Chapter issues an award for engineering excellence," said Ric Federico, Senior Project Manager in the Bowling Green, Kentucky office of EnSafe, Inc. "For our work in mapping the cave without drilling into it from the surface, the EnSafe NCM microgravity project was entered into the Surveying and Mapping Technology category where it won the Grand Award."

EnSafe provided support in evaluating potential environmental and safety concerns in the Museum's Skydome during initial response activities, and subsequently designed and conducted a microgravity survey to evaluate the extent of the void and aid in identifying other potential karst features beneath the Skydome. EnSafe worked with Western Kentucky University (WKU) professors from the Department of Geography and Geology, who entered the void and prepared a cave map, which revealed excellent correlation between the microgravity data and the actual cave dimensions.

"We worked closely with WKU, Hayward Baker, and Scott, Murphy, Daniel early on and throughout the project to help the National Corvette Museum evaluate the problem and potential remedies, and we are pleased that our project and data were of value to the project team in developing and refining the micropile strategy," said Federico.

Geotechnical firm Hayward Baker is currently finalizing micropile installation and the Skydome construction is on track to be complete in July.

Wednesday, February 11, 2015

Corvette Museum Marks One-Year Anniversary of Sinkhole

Live Streaming Ceremony Planned to Re-Introduce Restored Blue Devil to Display Floor

This Thursday, February 12 marks the one-year anniversary of the day the car community collectively gasped at the sight of eight Corvettes tumbling more than thirty feet into the depths of a sinkhole inside the National Corvette Museum’s Skydome. What could have been disastrous for the Museum, which celebrated its 20th Anniversary in 2014, turned out to be a positive, landing the Bowling Green, KY attraction prime time news coverage across the globe and a 67% increase in attendance for the year.

“We were fortunate the good Lord was watching over us,” said Wendell Strode, Executive Director, “because no one was in the Museum at the time.” Security cameras captured the first moments of the 5:39am sinkhole collapse, and the footage has garnered 8.5 million views world-wide on YouTube, plus countless more via news media outlets and television documentaries.

Of the eight prized Corvettes claimed by the sinkhole, two were on loan from General Motors and the other six were owned by the Museum. All eight cars were recovered from the hole, each receiving various degrees of damage. Only three of the cars were deemed in good enough condition for restoration.

“General Motors came forward the day after the sinkhole collapse and offered their support in restoring the cars,” Strode said. The 2009 ZR1 ‘Blue Devil’ was repaired by GM this past Fall and unveiled at the SEMA Show in Las Vegas on November 4, 2014. The 1992 ‘One Millionth’ Corvette began restoration at the GM Design Center in Warren, MI in January. The process is expected to take six months. The Museum will be working with a private Corvette restoration shop to repair the 1962 Tuxedo Black Corvette. Currently six of the Corvettes are on display in the Museum’s Exhibit Hall. All eight are planned to be reunited later this year when the Skydome construction is complete and the building is re-opened to the public for tours. The main portion of the Museum continues to remain open for tours during the construction process, which can be observed through a Plexiglas window.

The Museum’s Board of Directors had initially voted to explore keeping a portion of the sinkhole open, but ultimately it was decided to fill it in due to cost, safety and appearance concerns. The process to fill the hole was completed in January, and micropile installation starts this month.
“We are currently working with Creative Arts Unlimited of Pinellas Park, FL to develop a meaningful, first-class exhibit to tell the story of our sinkhole,” said Katie Frassinelli, Museum Communications Manager. “The construction team installed a manhole which leads into one side of our cave. The exhibit will incorporate a kiosk which connects to a camera and lights inside the cave, allowing visitors a live view of what lies beneath their feet. The exhibit should be educational and entertaining with plenty of hands-on and interactive features.”

To commemorate the one-year anniversary of the sinkhole, the Museum has planned a ceremony for 3pm CT featuring a recount of the discovery of the sinkhole by Betty Hardison, Museum Library & Archives Coordinator, who was contacted by the security company and was first on the scene. Zach Massey, Project Manager with Scott, Murphy and Daniel Construction will then share details on what work has been performed thus far, and provide updates on the remaining work to be completed. The ceremony will include an official unveiling of the restored 2009 ZR1 ‘Blue Devil’ as this will be the first time it has appeared on display at the Museum since the repairs were completed. The Blue Devil was the first Corvette recovered from the sinkhole, cranking up for a crowd of cheering on-lookers.

“Everyone has joked that the Museum ‘made lemonade’ out of this situation, so we thought it fitting to end our ceremony with a lemonade toast to continued good fortune for the Museum,” added Frassinelli. The ceremony will be live streamed via YouTube and can be accessed on the Museum’s website at www.corvettemuseum.org.

The Museum, a 501(c)(3) nonprofit foundation, is located at I-65 exit 28 in Bowling Green, KY and is open daily, 8am-5pm CT. Admission is $10 for adults, $5 for kids age 6-16, children age 5 and under are free, $8 for seniors or $25 family admission and free for active military. Learn more at www.corvettemuseum.org or call 800-53 VETTE (83883).