Inside the Massive Effort to Replace the Francis Scott Key Bridge
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- เผยแพร่เมื่อ 28 ก.ย. 2024
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Gordie Howe Bridge: • The $6.4BN Gordie Howe...
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Introduction
On March 26, 2024, Baltimore faced a significant tragedy when a massive container vessel struck the 1.6-mile-long Francis Scott Key Bridge, resulting in the death of six construction workers. This catastrophic event not only had immediate human and economic repercussions but also prompted swift action from Baltimore for cleanup and the design of a new bridge. This comprehensive examination delves into the details of the accident and the colossal effort involved in creating a new mega bridge.
The Francis Scott Key Bridge
The Francis Scott Key Bridge, operated by the Maryland Transportation Authority (MDTA), has been a critical infrastructure piece since its opening in 1977. The bridge spanned 9,000 feet, constructed from steel and concrete, featuring a continuous steel through-truss section over the Patapsco River. The main span provided 185 feet of vertical navigation clearance and about 1,100 feet of horizontal clearance between supporting piers. By 2023, it handled an average daily traffic of 34,000 vehicles, with 10% being trucks.
Protection for the bridge included four large dolphins constructed with 25-foot diameter sheet piles filled with concrete, crucial for both impact protection and navigational assistance.
The Accident
The cargo vessel Dali, powered by a 55,000-hp diesel engine, experienced a catastrophic failure when two electrical circuit breakers tripped, causing a blackout. This led to the vessel losing both propulsion and steering while it was on a collision course with the Key Bridge. Despite efforts to manually restore power and drop the anchor, the Dali struck pier no. 17 at 6.5 knots, causing six spans of the bridge to collapse onto the vessel.
The accident resulted in the deaths of six construction workers and disrupted maritime access, affecting nearly 70 ships. The cleanup required a significant effort from the U.S. Army Corps of Engineers (USACE), the U.S. Navy, and other specialists, involving a substantial fleet of cranes, tugboats, and salvage vessels.
Cleanup and Effects
The bridge collapse had immediate and far-reaching effects. Maryland's Governor declared a state of emergency, and the Maryland Secretary of Transportation suspended all shipping to and from the Port of Baltimore. The cleanup operation led by USACE involved over 1,100 engineering specialists and various heavy-lift equipment.
Debris removal began on March 30, and by mid-April, significant progress had been made, with 3,000 tons of debris cleared and a temporary channel opened for recovery vessels. The salvage team also worked on removing containers from the Dali, and by May 20, the vessel was freed from the wreckage.
The collapse caused significant supply chain disruptions, particularly affecting automakers and major shipping lines. Economists estimated the weekly cost of disruptions at around $1.7 billion, with insurance losses ranging between $1 billion and $4 billion. Baltimore's city officials pursued legal action against the involved shipping companies for negligence.
The Future
In response to the urgent need for a new bridge, the MDTA is expediting the construction process by allowing contractors to bid with their own design ideas. Over 1,700 contracting firms attended a briefing, and a request for proposals was issued, seeking a visually attractive design with minimal piers in the Patapsco River and substantial vessel collision protection. The project aims to complete the new bridge by fall 2028, with significant federal funding expected to ease the financial burden on the region.
The most practical design for the new bridge is anticipated to be a cable-stayed bridge, similar to the Gordie Howe Bridge being constructed on the Detroit-Windsor Border. This design offers strength and faster construction for a bridge of this length. Webuild, an engineering firm, submitted a cable-stayed design proposal resembling Florida’s Sunshine Skyway Bridge.
Regardless of which firm wins the construction bid, the new bridge will be a remarkable mega project, symbolizing resilience and progress in the face of tragedy.
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Fair Use Disclaimer:
This video contains copyrighted material used under the guidelines of fair use. The purpose of this video is to provide commentary and critique on the Chicago Spire's story, and the content is transformative in nature. It is used for educational purposes, with the intention to inform and entertain viewers. All rights to the copyrighted material are retained by the respective owners.
Remember the Miami pedestrian bridge collapse that killed six people five years ago? Construction of the replacement may start one of these days..
9:10 The Sunshine Skyway- also a replacement span for an old steel cantilever bridge that was struck by a (much smaller) cargo vessel around 1980. I remember the old one being scary to a little kid.
Yep. And like that bridge this one did not have nearly good enough pier protection.
Hopefully the new bridge will accomodate the largest cargo vessels sailing today.
Very well done - great research / script
JR
The new bridge will be just like the Sunshine Skyway bridge in Tampa. It won’t have the beautiful views like the Skyway bridge, but it will be a much better bridge. This bridge was named after Francis Scott Key because the British ship he was on was located in this location when Fort McHenry was being bombarded and where he came up with the lyrics for the National Anthem.
One point nine billion BEFORE cost overruns. Ya' rush building this one and it will go down again no matter who designs it. 🎉
I was listening to After Hours on what is now Infinity Sports Network, then known as CBS Sports Radio when the host Amy Lawrence brought it to us listener's attention about an hour or two after it collapsed. That was scary.
it would cost about $220 mill to build a tunnel between the span where the FSK Bridge is ( give or take ) , this is taking into consideration that it costs $30 mill per mile in chicago by the Boreing Company - to replace the bridge is about 2 billion dollars, they claimed $1.7 to 1.9 but we all know costs will over run... we are going to replace the bridge, reason for this is Hazzard Trucks, cannot go in a tunnel, BUT, if a Tunnel and a Bridge were built, you would have a backup so that the whole system is not completely shut down for years or months and would be a drop in the bucket to add to the system, so for the next 3 to 4 years this area will be under construction... if there was a tunnel, a code variance with a Manned 24/7 fire station at either end could have used a tunnel in the short term and act as a backup
I want to know why the bridge was able to be struck by the ship. Such a critical structure continually subject to dangerous traffic should have had more substantial protection from a predictable disaster.
I don't understand how Baltimore city had anything to do with it Sea girt is actually in Baltimore county. And the bridge goes from Baltimore county to Anne Arundel county
This is such a good quality vid, how are you so undderated
there no lik in description for the cable bridge,, were is it
Ah man, ship happens!
not to mention, this happened just a few minutes away from the baltimore and ohio railroad museum!
I wonder will they keep the name
With the way things are going they will rename it for whoever wrote the so called Black national anthem.
probably yes with how important FSK was
@@noodengr3three825 conservatives making things up and getting mad about it
Would tunnel be an option here ?
Hazardous cargo is not permitted to go through tunnels probably because crashes with hazardous cargo in tunnels would be much more dangerous to clean up than similar crashes on bridges, making bridges necessary for those kinds of loads. Some hazardous loads could also damage a tunnel like explosives, while a bridge would be able to avoid much of that damage should an explosive load detonate. Tunnels therefore cannot replace bridges for all loads that need to be transported, so bridges are still necessary.
I don't think it should be a bridge. I think it should be a tunnel. They've already got two tunnels. You might as well just build another one.
Watsica Circle
on my birthday too 🤣
I guess getting a functional and efficient bridge is the priority here, but I really hate those "sailboat" style bridges. They are just so ugly and generic. Someone needs to come up with a different design that has similar efficiency.
Why dont they go under the channel so it never happens again?
Hazardous loads are not permitted to go through tunnels.
A misleading headline! This is not primarily about "effort to relace" It is mostly chronology of crash & aftermath. Only last +/-90 seconds refer at all to replacement. Bugger off.
not a happy story… plenty of blame to go around
My question is where the 6 lost souls union members/reps
Bodies were recovered
@@galewinds7696I think they wanted to know if they were union members.
Which isn't really relevant in this case, as union or not, it would not have changed their fates. Unions exist to protect you against your boss, not giant cargo ships coming straight for you
The Chinese should bid. It'd be done by Christmas - and no doubt to a higher quality
I hope this time they will not save cash on protetecting dolphins
The ship is it paying for the replacement?
Get Chinese technology, the bridge will be done in a couple of months, with a lower budget!
And fall into the water in 25 years tops.
The only actual solution I can see is to tunnel under the shipping channel, so that there is no bridge there in the first place.
Like the bridge-tunnels in the Norfolk, VA, USA area.
My solution would be a tunnel as on the Chesapeake Bay Bridge-Tunnel and the Hampton Roads Bridge-Tunnel and I-664 Bridge-Tunnel.
No bridge over the shipping channel that can be hit by ships or bombed during war.
The I-695 approach tunnel portal causeways are already in place, for the original design of a 6,200 foot long tunnel.
And road conditions in the tunnel are less subject to harsh weather conditions, like icy, or snow-covered bridges during the winter.
Hazardous loads are not permitted in tunnels; so bridges are still necessary to handle them.
@@jnvivian
Bridges that are in the harbor cannot carry any traffic at all.
Another ship will just hit it anyway.
Boat pilots need to be trained properly and tested for drugs on a regular basis..and tested for drugs and alcohol if theyre involved in an accident.
A whole 2 min on the new,and it was just what ifs,maybe this or that.FAIL
The Gordie Howe bridge is 1.5 miles long, including the half mile center span. With the center span construction completed, the Gordie Howe bridge is now officially a border crossing with customs of both countries on site, (currently screening bridge employees & officials). Note, with the Gordie Howe bridge, NO structural supports are in the water to interfere with (or vulnerable to) shipping vessel traffic. Gordie Howe bridge is also six lanes wide (plus shoulders), plus a dedicated bicycle/pedestrian lane. The Gordie Howe bridge project cost $6.4 billion (CAD), up from the original $5.7 billion (CAD) estimated prior to the COVID pandemic. The Gordie Howe's bridge support towers stand 720 ft high, and their footings are about 725 ft deep. The bridge is designed to last for about 125 years, becoming the longest cable stayed bridge in North America. Expecting to be open in September 2025, construction began in 2018. Tolls will be paid on the Canadian side, since Canada is footing the bill for the entire bridge project, which include both ports of entry, approaches to the bridge from the ports, and ramps to their respective ports from either I-75 or 401 highways. However, bicyclists & pedestrians may cross toll-free, but don't forget your proper ID or passport.
nice video! looking out for more
The routing over the bridge was I-695, not MD 695. Otherwise, a good video.
Hello BC! I love the video. So I’m going to leave a nice long comment to boost your video for the TH-cam algorithm gods! I know it’s hard as a content creator to get the videos you worked so hard on to get going with the algorithm. So hopefully this comment gets it on its way. I used to leave really short comments just saying “hi” or “
It's going to be a cable-stayed bridge because it is the design that can be built the fastest. I had predicted that other designs would either take took long to build or would not be reasonably safe in another collision.
the Chinese would have a replacement bridge sorted by am rush hour next day
We all know what happened,donot need a history lesson.Stick to your click bait.
What?! "In one of my most well produced videos to date"?!
It looks built back better enough to me
They’re not doing anything to replace it
More videos like this
It’s hard to not be a “theorist” with this one. Out of all the things I’ve witnessed and dealt, this left me speechless more than anything. I’m sorry this just doesn’t happen.
All the bridges in the northeast are built poorly, compared to the ones in Charleston, outside of Savannah, and the one in Tampa. It’s difficult to explain if you haven’t seen the bridges in Baltimore/Philadelphia etc, compared to other areas of the country.
- "I’m sorry this just doesn’t happen."
Why? Because you said so?
OKS !!!! Have made comments on other channels that the ""KEY bridge was a ""TOLL" bridge from day 1 when it opened in '75 ,, so where's the $$$$$ for maintaining & replacing gone ??? GOOD "OL" AMERICAN GREED!!! 😡🤬
Preach yo shit 🙏
@@imverytired958 Ain't NO Shit ,,Just plain facts that NO one wants to admit too !!
@@KB-gs8zi fr
That’s like saying you’ve gotten paid $100k a year since 1975, why don’t you have $1,000,000+ saved up. The operating cost is massive for these things and the routine maintenance throughout the years likely depleted funds continuously
@@GingerO762 OKS !!! How about the raise in tolls over the years & very little done to keep the bridge repaired & protected !! The bigger question now is ::: What about the ""BAY "" bridge & it's protection ????
The Chesapeake Bay Bridge, the Verrazano, the Golden Gate, those are examples of mega bridges. This one was a two laner and fairly big, but a “MEGA”? AW, COME ON!
thought this was about building the new bridge