U.S. Army Corps of Engineers, Nashville District


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U.S. Army Corps of Engineers, Nashville District
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Recent News Stories

Maintainers work to fully repair drained Old Hickory Lock Maintainers work to fully repair drained Old Hickory Lock
Old Hickory Lock holds 19 million gallons of water when fully operational. However, the U.S. Army Corps of Engineers Nashville District recently closed it to...
Corps partners with Nashville Shores to promote water safety Corps partners with Nashville Shores to promote water safety
Park rangers at J. Percy Priest Lake are spending several hours at Nashville Shores Lakeside Resort every Friday this summer to promote that water safety and fun...
Sweet partnership with McDonald's treats kids who play it safe Sweet partnership with McDonald's treats kids who play...
When park rangers witness young people practicing good safety at Cordell Hull Lake this summer, they might just reward them for their efforts thanks to a sweet...
Corps holding back water in Cumberland River Basin
The U.S. Army Corps of Engineers Nashville District is holding back water and limiting releases at its dams to relieve high-water levels on the lower Ohio and...
Old Hickory Lock closing for maintenance July 14 –...
Old Hickory Lock is closing July 14 to Aug. 4, 2015, to all public access, including navigational traffic, for dewatering and maintenance.
Sunset Marina flying new ‘Clean Marina’ flag Sunset Marina flying new ‘Clean Marina’ flag
The U.S. Army Corps of Engineers Nashville District supports marina operators and owners who are voluntarily striving to protect the water resources of the Cumberland...


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Recent Photos

Maintainers work to fully repair drained Old Hickory Lock Maintainers work to fully repair drained Old Hickory Lock
Anthony Certeza, a lock and dam equipment mechanic assigned to the Cumberland River Operations Center in the U.S. Army Corps of Engineers Nashville District, inspects...
Corps partners with Nashville Shores to promote water safety Corps partners with Nashville Shores to promote water safety
J. Percy Priest Lake Park Ranger Adam Johnson hands out water safety goodies and provides information at Nashville Shores Lakeside Resort July 10, 2015. The Corps is...
Sweet partnership with McDonald's treats kids who practice good safety Sweet partnership with McDonald's treats kids who...
Park Ranger Phillip Sliger (Right) receives vouchers for free ice cream and smoothies July 9, 2015, from Vince Blackledge, general manager of the McDonald's in...
Nashville District names Leslie employee of the month for May 2015 Nashville District names Leslie employee of the month...
Melanie Leslie, geologist, Civil Design Branch Engineering Division for the Nashville District, is the U.S. Army Corps of Engineers Nashville District’s Employee of...
Corps prepares future engineering students at Summer Engineering Program Corps prepares future engineering students at Summer...
Charlie Byran, U.S. Army Corps of Engineers Nashville District, lock master, talks with students from Tennessee State University Engineering Department's four-week...
Sunset Marina flying new ‘Clean Marina’ flag Sunset Marina flying new ‘Clean Marina’ flag
U.S. Army Corps of Engineers Nashville District officials present a "Clean Marina" flag to Sunset Marina at Dale Hollow Lake in Monroe, Tenn., June 22, 2015. They...


Recent Video

Old Hickory Lock Empty for Maintenance Old Hickory Lock Empty for Maintenance
Old Hickory is empty and closed to navigation while U.S. Army Corps of Engineers Nashville District maintenance personnel inspect and repair underwater components. ...
Corps Partners with Nashville Shores to Promote Water Safety Corps Partners with Nashville Shores to Promote Water Safety
Corps Partners with Nashville Shores to Promote Water Safety.
McDonalds Treats Make Safety Sweet for Kids at Cordell Hull Lake McDonalds Treats Make Safety Sweet for Kids at Cordell...
Kids who practice good safety at Cordell Hull Lake and its recreation areas and campgrounds might just earn a free ice cream or smoothie thanks to a sweet partnership...
Gospel Artist says 'Struggle Not' in the Water Gospel Artist says 'Struggle Not' in the Water
Gospel Recording Artist Le 'Andria Johnson encourages everyone to "Struggle Not" when recreating in the water at Corps of Engineers lakes this Independence Day...
Tanya Tucker Wants Fans to Stay Safe Memorial Day Weekend Tanya Tucker Wants Fans to Stay Safe Memorial Day Weekend
Country Music Legend and Hall of Fame Artist Tanya Tucker is partnering with the U.S. Army Corps of Engineers this Memorial Day weekend to encourage her fans to be...
Nashville Mayor Karl Dean Wants Everyone to Be Safe Memorial Day Weekend Nashville Mayor Karl Dean Wants Everyone to Be Safe...
Nashville Mayor Karl Dean is partnering with the U.S. Army Corps of Engineers this Memorial Day weekend to encourage everyone to be safe boating and swimming, and to...



Maintainers work to fully repair drained Old Hickory Lock


Story by Leon Roberts

Maintainers work to fully repair drained Old Hickory Lock OLD HICKORY, Tenn. – Old Hickory Lock holds 19 million gallons of water when fully operational. However, the U.S. Army Corps of Engineers Nashville District recently closed it to navigation and drained it for scheduled repairs.

Charlie Bryan, Navigation Facilities supervisor at Old Hickory Lock and Dam, said the Nashville District closes the lock every five years, pumps the water out, inspects underwater components, and makes repairs to the gates, valves and bushings as required.

“This time we’re concentrating on the lower miter gates, correcting problems in the contact blocks ... a lot of cracked welds had to be re-welded ... and we also had ERDC (Engineer Research and Development Center) come in and apply a carbon fiber reinforced polymer to the lower gates,” Bryan said.

The team from ERDC applied CFRP patches shortly after the lock was dewatered July 14. They plan to monitor the repair of fatigue cracks, which is expected to extend the fatigue life of the steel structures, said Guillermo Riveros, research civil engineer with the ERDC Computational Analysis Branch.

Riveros said the team from ERDC that worked at Old Hickory Lock consisted of himself and Matthew Nelms, University of Mississippi; Anthony Perez, University of Puerto Rico; and Bashir Ahmadi, Colorado State University.

The applications of CFRP at Old Hickory Lock will be evaluated to determine the effectiveness of this repair method and how it is impacted by exposure in a wet environment, Riveros said.

The Nashville District began constructing Old Hickory Lock in 1954, opened it to navigation in 1957 and, to this day, the lock operates with its original components. The longevity of the lock’s equipment can be attributed to the hard work and dedication of maintenance crews over the span of more than seven decades, Bryan added.

Bruce Johnson, lock and dam equipment mechanic supervisor, said teams are now working around the clock to fix cracks in the gates, to repair the struts that open and close the gates, and inspect areas in the culverts where water enters the lock chamber.

“Every five years we look at the pins and bushings on the valves and the overall condition of the valves to see if repair is needed,” Johnson said.

Mechanics are required to comb over the entire lock when it is dewatered and pinpoint any components that are worn or in disrepair.

Danny Tanner, lock and dam equipment mechanic at the Cumberland River Operations Center, is inspecting the steel gates and making welding repairs. He said the gates are huge steel structures that deteriorate from constant exposure to water, and it takes time to make assessments and then to make repairs to ensure they continue to operate properly for years to come.

“That’s why it’s a challenge to work on this metal, because it does stay under water so much, so you have to do a lot of pre-work in order to do the welds,” Tanner said.

The lock is located at river mile 216.2 on the Cumberland River. A total of 3,940.698 kilotons of commerce navigated through Old Hickory Lock and 1,112 recreational vessels locked through in 2014.

Old Hickory Lock is scheduled to reopen Aug. 4, 2015. Vessels cannot lock through during the closure. Call the Nashville District Navigation Branch at 615-736-5607 for more information.

(The public can obtain news, updates and information from the U.S. Army Corps of Engineers Nashville District on the district’s website at www.lrn.usace.army.mil, on Facebook at http://www.facebook.com/nashvillecorps and on Twitter at http://www.twitter.com/nashvillecorps.)

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Maintainers work to fully repair drained Old Hickory Lock