HomePoliticsLengthy lane closure coming...

Lengthy lane closure coming to U.S. 41 southbound Twin Bridge

Driving from Evansville to Henderson could be a little tricky over the next couple of months.

The southbound U.S. 41 Twin Bridge will be down to one lane from this Monday (Sept. 25) through Nov. 18 for a special extended inspection to assess the structural integrity and safety of the bridge, the Kentucky Transportation Cabinet announced.

Additionally, KYTC will restrict all truck traffic to a maximum width of 12 feet, prohibiting wide loads during the testing period.

“Motorists should anticipate delays and potential traffic backups due to lane closures and restrictions,” a cabinet news release stated, a warning that won’t surprise motorists familiar with how lane closures and merging vehicles can snarl traffic on the Twin Bridges, which combined carry an average of 41,375 vehicles each day.

Over the next seven weeks, a contractor will be removing paint, testing hundreds of welds and then reapplying primer.

The federally mandated testing has been triggered by the discovery of fractures in butt welds on at least two interstate bridges that, like the southbound Twin Bridge, were constructed in the 1960s and 1970s and contain “T-1” steel.

In 2011, an inspection revealed several cracks in butt welds on the Interstate 64 Sherman-Minton Bridge that carries six lanes across the Ohio River between Louisville, Kentucky, and New Albany, Indiana. That resulted in the closure of the double-deck span for five months so repairs could be made.

“It was subsequently determined that the cracking was very likely caused by hydrogen that was introduced into the weld as the result of inadequate fabrication procedures,” according to a Federal Highway Administration (FHwA) memo.

Then, on May 11, 2021, a fracture was discovered in a butt weld on the I-40 bridge across the Mississippi River between Memphis, Tennessee, and West Memphis, Arkansas. The bridge was immediately closed to ensure safety. Subsequent testing found 12 other butt weld fractures related to hydrogen cracking on the I-40 bridge that couldn’t be detected through a visual inspection. That bridge remained closed for 2½ months while repairs were made.

In December 2021, the FHwA issued a memo mandating states to identify, inspect and test specific T-1 steel bridges to verify the soundness of all butt welds with the use of non-destructive testing by March 31, 2024.

Michael Baker International, an engineering firm instrumental in the emergency repair of the Interstate 71/Interstate 75 Brent Spence Bridge between Covington and Cincinnati following a fire in 2020, will lead the inspection and testing of the southbound Twin Bridge.

KYTC described “T-1” steel as “a grade of high-strength, quenched and treated steel known for being highly amenable to welding and machining.” But it’s critical that welds are sound, including for butt welds where two pieces of steel are joined end-to-end without overlapping.

New standards for welding on steel bridges were established in 1978 and again in 1995 “to ensure proper welding procedures and post-welding testing to prevent defects like hydrogen cracking from being inadvertently incorporated into an in-service highway bridge,” the FHwA’s 2021 memo declared.

The I-64 Sherman Minton Bridge (built in 1960-61), I-40 bridge at Memphis (1973) and U.S. 41 southbound Twin Bridge (1965) were all constructed before those standards went into effect. (The U.S. 41 northbound Twin Bridge was constructed in 1932.)

KYTC noted that all structures carrying public roads in the United States undergo a routine inspection every 24 months. For certain spans, like the Twin Bridges, a hands-on inspection of critical members is also performed. This biennial inspection was completed on the U.S. 41 southbound bridge in August 2022. That inspection report contained no critical findings for the southbound bridge, which was built in 1965. The upcoming testing is intended to confirm the soundness of butt welds on the three-span cantilever truss bridge, which extends just over one mile.

The scheduled completion date of Nov. 18 for the testing would fall just ahead of the heavy Thanksgiving travel time.

Source link

Most Popular


Please enter your comment!
Please enter your name here

More from Author

Minnesota Wild fire coach Dean Evason, hire John Hynes

Dean Evason sounded as exasperated as he ever has following...

‘Oh F**k!’: Taika Waititi Stuns With Trump’s Demands For Commercial

At HuffPost, we believe that everyone needs high-quality journalism, but...

Ministers back justice minister as pressure mounts over Dublin riots

For free real time breaking news alerts sent straight to...

Read Now

The 200+ Best Cyber Monday Deals Out Of The 129,000 Deals We’ve Reviewed (So Far)

You read that headline right. This Black Friday and Cyber Monday, our expert deal hunters have assessed more than 129,000 deals (and counting).And these are the best 200 or so.I've been Wirecutter's deal editor since 2019. That's five Black Fridays, five Cyber Mondays, and an explosion...

Minnesota Wild fire coach Dean Evason, hire John Hynes

Dean Evason sounded as exasperated as he ever has following Sunday’s loss in Detroit, the Minnesota Wild’s seventh straight defeat. His team was running out of answers. So was he. “We’ve got to change something,” he said. In the end, the change was Evason. The Wild fired Evason on Monday...

‘Oh F**k!’: Taika Waititi Stuns With Trump’s Demands For Commercial

At HuffPost, we believe that everyone needs high-quality journalism, but we understand that not everyone can afford to pay for expensive news subscriptions. That is why we are committed to providing deeply reported, carefully fact-checked news that is freely accessible to everyone.Our News, Politics and Culture...

Ministers back justice minister as pressure mounts over Dublin riots

For free real time breaking news alerts sent straight to your inbox sign up to our breaking news emailsSign up to our free breaking news emailsMinisters have said they “fully” support Justice Minister Helen McEntee amid calls from the opposition for her resignation following the riots...

Gmail And Photos Content Purge Starts In 72 Hours: Protect Your Data Now

accountSOPA Images/LightRocket via Getty Images The countdown clock for the great inactive Google account purge is ticking. Act fast to save your old Gmail and Photos content. Here’s what you need to know and do. 11/28 updates below. This article was originally published on November 26. With just...

World Cup Final: J&K Police issues statement over booking of 7 students under UAPA – greaterkashmir

Srinagar, Nov 28: Reacting to the opinions and comments on booking of some students of SKUAST-Kashmir under UAPA for sloganeering during India-Australia cricket World cup final, Jammu and Kashmir Police on Tuesday said 'it...

Pat Cummins’ ‘Virat Kohli’ Reply When Asked Moment He’ll Remember On Deathbed | Cricket News

It has been more than a week of India's Cricket World Cup 2023 final loss to Australia but the fans of the Rohit Sharma-led side will be needing a long time to recover from the pain. An unbeaten India entered the final of the tournament by...

Fantasy Football Waiver Wire NFL Week 13: Josh Downs, A.T. Perry, streamers and more

The Week 13 fantasy football waiver wire is thin! And that’s even before accounting for byemageddon again. We have the Saints with multiple receiver injuries making A.T. Perry interesting, some timeshare running backs like Tyler Allgeier, and wideouts who shouldn’t be available (hello, Josh Downs). So,...

Yonhap News Summary | Yonhap News Agency

The following is the second summary of major stories moved by Yonhap News Agency on Tuesday. -----------------(LEAD) N. Korean soldiers in truce village armed with pistols: sources SEOUL -- North Korean soldiers stationed in the Joint Security Area (JSA) of the Demilitarized Zone (DMZ) have...

Amazon Has the Least Expensive 77″ 4K OLED Smart TV for Cyber Monday – IGN

Are you looking for a large 77" OLED TV made for current-gen console gaming, and you're on a budget? Those two conditions might sound mutually exclusive (and they usually are), but this Cyber Monday deal is as close as you can get. For Cyber Monday, Amazon...

Stock futures are lower as investors assess pause in November rally: Live updates

3 Hours AgoFoxconn Taiwan shares climb 1% after $1.5 billion investment in IndiaTaiwan-listed shares of iPhone manufacturer Foxconn climbed almost 1% after the company announced a $1.5 billion investment in India.Foxconn, which trades as Hon Hai Precision Industry in Taiwan, saw its shares stand at 102.5...