how do u make a paper boat

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How to Make a Paper Boat

Last Updated: November 10, 2023 Fact Checked

This article was co-authored by Robert Homayoon . Robert Homayoon is an Origami Expert known for his engaging YouTube videos and accessible instructions. He has been teaching origami on YouTube since 2009. His channel has a following of over 676,000 subscribers, and his videos have garnered over 211 million views. Robert uses his channel to highlight his passion for teaching people origami, crafts, and how to solve puzzles. He graduated from SUNY Albany in 2007 and earned his D.M.D degree from Temple University Dental School in 2013. There are 7 references cited in this article, which can be found at the bottom of the page. This article has been fact-checked, ensuring the accuracy of any cited facts and confirming the authority of its sources. This article has been viewed 4,477,935 times.

Making an origami paper boat is a great activity that’s easy to finish and doesn’t require a lot of materials. The beauty of making a paper boat is that you only need one piece of printer paper to complete the task! By folding the paper with sharp creases and shaping it carefully, you can make a great-looking origami boat in minutes. We'll walk you through folding your own paper boat with our complete step-by-step instructions.

Creating the Initial Folds

• To strengthen the crease, run your finger down the fold 3-4 more times.
• You should now have 2 creases along both centers (x-axis and y-axis) of the page.
• Use the crease you made before to help line up the folds coming in from the corners.
• The 2 folds should line up with each other.

Tip : When you go to fold the second side, use the first fold as a reference point.

• The flaps closest to you should be folded in front of the back flaps, not over them. If you fold over the back flaps, you won’t be able to fold the back flaps themselves.

Making the Final Folds

• Crease the paper along its edges so that it stays in the square shape.
• The bottom of the diamond should be the part of the paper with extra folds.
• The bottom corners will line up to become the bottom point of a square diamond.
• You may need to pull up the triangle inside the diamond while pulling apart the two sides. Try to keep the triangle inside the diamond sticking straight up as this will be your boat's "mast."
• You can reinforce the corners with clear tape and tape around the bottom to keep your boat dry.

Tip : Waterproof your boat! Use a waxed paper from an art store to make your boat last longer, or color one side of the paper completely with a crayon. You can also try to make your boat out of aluminum foil.

Expert Q&A

• If you are floating your boat on a large body of water, like a pond, you can tape string onto one end of the boat. Hold on to the other end of the string so that it doesn't float away! Thanks Helpful 311 Not Helpful 146
• Try to get the edges of the paper to line up. An evenly made boat means less chances of tipping over. Thanks Helpful 58 Not Helpful 32
• If you are making a tiny boat, don’t float it on a big body of water. You may lose it! Thanks Helpful 16 Not Helpful 11

Tips from our Readers

• If you don't have specialty supplies like wax paper or crayons, no need to fret. You likely already have the tools to waterproof your delicate paper boat right at home. Simply construct two separate boats out of ordinary printer or construction paper. Then, gently place one inside the other, nesting them together into a double-walled vessel. This should reinforce them to better withstand water without getting too soggy. Though, test float gently, as the extra weight could cause sinking if the little boat gets overburdened.
• Missing wax paper for true waterproofing? Simply equip your artist's toolkit by raiding the crayon bin! Thoroughly color one whole side of the boat with thick crayon before setting it afloat in a pool, pond or puddle. The waxy buildup should act as a shield against light water exposure. Though if embarking on choppier seas, extra reinforcements may still be needed, matey!
• Forego the plain printer paper and opt for fun vibrant colors and patterns! Tissue paper can make for a festively hued sail, but be extra delicate as it shreds easily, especially once wet. For best durability, stick to construction paper or card stock to give your boat more sturdiness as you launch it into the open water.

• Make sure you don't have any holes, as one little hole can turn into a huge rip. This could be good in a procedural text. Thanks Helpful 15 Not Helpful 3

You Might Also Like

Expert Interview

Thanks for reading our article! If you’d like to learn more about origami, check out our in-depth interview with Robert Homayoon .

• ↑ https://ussconstitutionmuseum.org/wp-content/uploads/2018/09/Make-a-Paper-Boat-Hard.pdf
• ↑ https://www.youtube.com/watch?v=b3QZpBL8-Tg#t=1m20s
• ↑ https://www.origamiway.com/origami-boat.shtml
• ↑ https://kids.nationalgeographic.com/nature/article/make-a-paper-boat
• ↑ https://www.origamiway.com/origami-boat-2.shtml
• ↑ https://www.youtube.com/watch?v=b3QZpBL8-Tg#t=2m54s
• ↑ https://kids.nationalgeographic.com/explore/nature/make-a-paper-boat/

About This Article

If you want to make a paper boat, fold a piece of paper in half from top to bottom. Then, fold it again from side to side and unfold so you have a crease in the center. Fold the top right corner down towards the center. Next, flip the paper over and fold the other corner down on the other side. Fold each of the bottom edges of the paper up and outwards to make a paper hat shape. Then, open the hat and flatten it horizontally to create a diamond. Fold the bottom edge of the diamond upwards towards the top. Then, turn the paper over and repeat on the other side. Pull the paper apart again and smooth it out to create a boat shape. Did this summary help you? Yes No

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How to make a paper boat (step-by-step instructions)

I think everyone has made a paper boat at least once in their lifetime. Making paper boat is easy as we don’t need many materials to make it.

This is an origami craft, so all you need is a sheet of paper.

And this is a craft that every parent passes onto their kids, right?

Here is the step-by-step way to make a boat out of paper.

Materials required

A4 sheet / Letter size paper/Any rectangular paper

Step-by-step tutorial to make an easy paper boat for kids

a. Take an A4 sheet paper. Hold it horizontally as shown in the picture.

b. Fold it from left to right.

c. Make a crease.

d. Now, fold the paper from bottom to top.

e. Fold it well and make a crease.

f. Unfold the fold we just made in step d.

g&h. Now, fold the right corner towards the centre and make a crease.

i. Similarly, fold the left corner towards the centre.

j. Flatten the folded pieces down and now you have the figure as shown in pic j.

k&l. Now, from the bottom, fold one layer upwards along the bottom of the folds we made in j.

m. Make a crease and flatten it well.

n. Turn the figure over.

o. Now, like we did in the previous step, fold the bottom layer upwards.

p. Flatten the fold and make a crease again.

q&r. Open the bottom of the figure.

s. After opening as shown in pic r, flatten the top corner to the bottom as you can see in pic s.

You can see that the edges of the paper boat are overlapping on each other.

t. Insert one edge into the other (see pic t).

u. You get the figure in u.

v. Now, fold the layer from bottom to the top as shown in pic v.

w. Flatten the fold.

x. Flip the paper over and fold the other layer too. You will get the triangle shape in x.

y. Open the bottom of the figure again by pulling the flaps apart.

z. Flatten it out and you will get a diamond shape now.

aa. Open the figure by pulling the sides apart from the top to get the shape of the boat.

ab. Flatten it out an open again and your paper boat is ready.

In case you have any doubt regarding any step, feel free to watch the step-by-step video tutorial below. Please make sure you also  subscribe to our Youtube channel  to get more craft ideas for kids every week. 

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Video tutorial to make a paper boat

More paper crafts for kids

• How to make a paper airplane step-by-step
• How to make an easy and beautiful paper flower
• How to make an Origami jumping frog step-by-step

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Trending post: Easy Cupcake Liner Flower Tutorial

How To Make An Easy Paper Boat

• Pinterest 34

Quick and easy to make a paper boat, step-by-step tutorial with pictures. It is a simple origami project from just a piece of paper and lots of fun!

Origami Paper Boat

One of the simplest origami you can make to bring back memory and fun times. All you need to do is fold some paper a few times, add a few decorations or doodles you like, and your paper boat is ready in no time.

This paper boat is the exact one I used to make and play with when I was little. It is fun to make paper boats with various paper colours, and you can make them in different sizes too.

How To Make An Origami Boat

The only material you need to make a paper boat is print-size A4 paper. The colourful crafting paper is also fantastic for this project.

You can use stickers, pencil colour, or marker to add decoration or doodles.

The paper size should be rectangular. If you use a square shape like the paper specifically for origami, cut it into a rectangle for this project.

• Prepare the paper you like. First, fold the paper half downward or lengthwise. Next, fold it again in half, then open it up.
• Fold two corners on the top to the middle so both corners will meet up in the center along the folded line and resemble a triangle.

• Fold up both rectangle shapes under the triangle. Put your thumb on the opening right in the centre by the folded line.

Pull both corners in the opposite direction. Now the paper resembles a diamond shape folded paper.

• Press the paper flat. Fold the lower side upward, align it with the top, and do the same for the opposite side.

Put your thumb on the opening right in the centre by the folded line. Then pull both center lines in the opposite direction so you will have diamond shape paper.

• Slowly pull both of the top parts outward in opposite directions. Adjust the paper boat to smoothen up the fold if needed.
• Your paper boat is ready.

How To Play With The Paper Boat

A paper boat is floating in the water. That’s how I used to play with it. I had so much fun racing the paper boat on the bucket of water.

Because it is made of paper, it will float, but it is not waterproof. However, you can add clear tape or Mod Podge to seal the bottom of the boat to last longer.

Put the paper boat in a shoebox-sized plastic container with some small figurines. That sure will provide hours of fun.

If they like, let them decorate or doodle on their paper boat before putting it in the water.

More Easy Origami

• Paper Frog Puppet

Easy Step-by-Step Origami Paper Boat Tutorial

• A4 paper size or colourful crafting paper
• Pencil or marker (optional)

Instructions

• Pull both thumbs in the opposite direction. Now the paper resembles a diamond shape folded paper.
• Again, put your thumb on the opening right in the centre by the folded line. Then pull both center line in the opposite direction so you will have diamond shape paper.
• See the step-by-step picture tutorial for more detail.
• Use smaller size rectangle paper to make a small size boat.

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How to Make a Paper Boat | Origami Boat Tutorial

Origami, the art of paper folding, is a delightful pastime that allows you to create intricate designs using a simple sheet of paper. Among the many fascinating origami creations, the origami boat is a classic and timeless design that can be easily mastered by beginners. In this guide, we will walk you through the steps to create a simple origami boat.

To begin, select a square sheet of paper. You can use origami paper, colored paper, or even a plain white sheet. Place the paper in front of you, ensuring that one corner is facing upwards.

Fold the paper in half diagonally, creating a triangle. Make sure the edges are aligned accurately, and crease the fold firmly. Next, unfold the triangle and repeat the same step by folding the paper diagonally in the opposite direction. Once again, unfold the paper to reveal a creased “X” shape.

Table of Contents

What you need;

Square piece of paper:

How do you make an origami boat step by step?

Origami boats are a classic and enjoyable paper folding project. In this step-by-step guide, we will walk you through the process of creating an origami boat. With just a square sheet of paper and a few simple folds, you’ll be able to make your very own paper boat. Whether you’re a beginner or an experienced origami enthusiast, this guide will help you create a charming origami boat that can sail your imagination’s seas. Let’s dive into the world of origami and get started on this delightful project.

Certainly! Here is a step-by-step guide to making an origami boat:

Take the object and fold it in half according to the demonstrated method. Afterward, proceed to fold it once more, but only partially this time, creating a crease in close proximity to the upper section.

Please refer to the image on the left below, where you can clearly observe the crease. This crease serves as a guide to align the corners appropriately. Proceed to fold down the corners as indicated in the image below.

Begin by folding each edge of the paper upwards, following the instructions provided. As demonstrated, use your fingers to carefully open up the folds, resulting in the formation of a hat. At this point, you can choose to conclude the folding process and enjoy your hat. However, if you wish to proceed further, you have the option to transform the hat into a boat.

To transform the hat into a square shape, bring the corners of the hat brim towards each other. As you do this, you will notice that the edges of the brim will naturally push outwards. This action can be likened to “squashing” the hat, gradually reshaping it into a square.

Next, select one of the lower corners of the square and fold it upwards, creating a triangular shape. Flip the folded piece over and repeat the same folding process for the other corner. Now, you should have a folded triangle. To continue, carefully open up the folded triangle and bring the corners together, aligning them neatly…

Once you have the folded triangle, proceed to “squash” it again into a square shape, similar to the middle photo provided. Gently pull on the folded edges to unfold the paper and reveal the boat shape. If you prefer, you can turn the boat over and expand the hole in the bottom. Enlarging the hole will improve the boat’s balance and floating ability.

Watch Video Tutorial

Frequently Asked Question

Can i use any size of paper to make an origami boat.

While it’s possible to make an origami boat with different sizes of paper, it is generally easier to work with a square sheet of paper. The size of the paper will determine the final size of the boat. Larger paper will result in a bigger boat, while smaller paper will create a smaller boat. It’s recommended to start with a square piece of paper, but you can experiment with different sizes to achieve the desired result.

What if I don’t have origami paper?

If you don’t have origami paper, you can use any square-shaped paper, such as regular printer paper, construction paper, or even recycled paper. You can easily make a square from rectangular paper by folding it diagonally and trimming off the excess. The key is to have a square shape to begin with, as it makes the folding process easier.

Can I decorate or personalize my origami boat?

Absolutely! Origami boats can be a fun and creative project. Once you’ve folded your boat, you can use markers, crayons, or colored pencils to add designs or patterns to the paper. Just be mindful not to use heavy materials that may weigh down the paper or make it difficult to fold.

How can I make the origami boat float in water?

While origami boats are not typically designed to float for extended periods, you can take some steps to make them float temporarily. You can apply a thin layer of waterproof sealant or wax on the surface of the boat to make it more water-resistant. Additionally, you can use lightweight materials, such as toothpicks or small pieces of cork, to create a simple raft-like structure underneath the boat, which can improve its floating ability.

Can I unfold the origami boat once it’s folded?

Yes, you can unfold the origami boat by reversing the folding steps. Gently unfold the paper along the creases you made, taking care not to tear or damage the paper. This allows you to reuse the paper or try folding a different origami model.

Making a simple origami boat is a fun and enjoyable activity. All you need is a square piece of paper, and you can follow the step-by-step instructions to create your own boat. Remember, while origami boats may not float for an extended period, you can decorate them and make them temporarily float by applying a waterproof sealant or adding lightweight materials. Don’t hesitate to get creative and personalize your origami boat. Enjoy the process of folding and have fun with your finished creation!

Chrissy is a freelance writer, teacher, and designer who creates content on origami and paper crafts. She runs the site Origami Step and makes her own origami tutorials for readers. She has been writing about origami since 2008 and is the founder of website Origami Step, where she creates videos, resources, and printable origami paper.

How to make an Origami Koi or Origami Carp

Origami cow face origami cow easy i simply&easy origami.

Making an Easy Origami Boat

The Spruce Crafts / Chrissy Pk

• Total Time: 10 mins

Origami comes from the Japanese. The word means the art of folding paper. " Ori " means "folding," and  kami  means "paper." In modern usage, the word "origami" is used as an inclusive term for all folding practices. The goal is to transform a flat square sheet of paper into a finished sculpture through folding and sculpting techniques.

Learn how to make the most well-known origami boat with this quick and easy step-by-step tutorial. This origami boat can also float in water .

Watch Now: How to Make an Origami Boat

This origami boat is a great model to teach kids. It is similar to the origami hat that you make with newspaper. Also, origami can be a great math-related activity for kids as your child creates using geometry.

What You'll Need

• 1 Rectangular sheet of paper

Instructions

Make the first folds.

Start with your rectangular paper, orient it vertically, with the long edges going up and down. Fold the bottom half up to the top.Fold the bottom right corner over to the left corner and make a small pinch, just enough to crease the paper. Open it back up.

Create a Triangle Shape

Using the crease as a guide, fold the left and right bottom corners up and to the middle. Flatten the folded pieces down. Rotate the paper. Fold one layer from the bottom up along the bottom of the front flaps.

A Boat Begins to Take Shape

Flip the paper over to the other side. Fold the bottom edge up in the same way. Unfold, and then fold the bottom right corner in along the crease you made. Repeat on the bottom left flap.

Form the Bottom of the Boat

Re-fold the bottom edge back up. Open the bottom of the model. Look at the corners. Flatten and then insert the overlapping flap on the left underneath the right section.

Continue Folding

Fold one layer up to the top. Repeat on the back. Open the bottom of the model.

Finalize the Folds

Pull apart the left and right flaps. Flatten it out, in the shape of a boat. Open it slightly. The triangle in the middle resembles a sail.

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Origami Way

Make a paper boat origami boat instructions and diagram.

If you've always wanted to play with boats in the tub, but your parents wouldn't get one for you, don't worry. I will show you how to make an origami boat out of paper, and yes it floats...for a little bit, but it's still fun nonetheless. However, I heard that if you color the bottom of the boat with crayon, then it will float longer. Just be careful not to splash too much water on it!

Before we get into how to make an origami boat, let us first discuss where this paper folding originated and where it first appeared. If you're interested in the history of paper folding, continue reading to learn the fundamentals of origami.

Research studies say that origami was first invented about a thousand years ago by the Japanese, but its roots may well be in China. The term refers to the craft of paper folding. The word "origami" is an inclusive term for the folding process of paper. "Ori" means "folding," and "gami" means "paper." The objective of origami is to transform a flat square sheet of paper into a fully completed piece of art through folding techniques and cutting methods.

How to Make a Paper Boat Float Longer?

If you're ready to make your paper boat origami, keep these tips in mind to ensure it will last a long time on the water. The most common is that if you color the bottom of the origami boat with crayons, it will float longer but not long enough to reach the finish line. Some people also say that to make the boat last longer when it is on water, try using foil paper or grease-proof paper.

How to Make a Paper Boat?

The origami boat is actually very simple to make. All you need is a rectangular piece of paper, so any 8.5x11 copy or lined paper will do. Then follow the instructions and pictures carefully and you'll be able to make your own origami boat that floats.

With the help of this simple step-by-step lesson, you can quickly and easily create the most well-known origami paper boat.

• © Origamiway.com

How to Make a Paper Boat – Origami for Kids

We love doing simple origami and this time we’re going to learn how to make a paper boat – a summer favorite!

We’ve done quite a few awesome origami tutorials for kids and each of them is a must make!

I loved to make these as a kid (the exact same ones) and I loved to play with them even more – we would sail them in the bathtub, puddles and lakes and when possible even have boat races with other neighbourhood kids.

This time though we took it a step further too see who can make the smallest origami boat – each time working with a smaller piece of paper (cutting the size of the paper to half each time) and I was genuinely surprised with the size of paper we have come down to – and too be honest we could probably do one even smaller if I’d have some tweezers at hand.

How to Make a Paper Boat

All you need is a sheet of paper letter sized or A4. Regular print paper is perfect for this project. Use as many colors as possible.

Start off with a sheet of paper and fold it in half downwards.

Fold in half again as shown on the second image (you don’t need to make the crease from top to bottom – you just need to mark the center).

Bring corners to the center so that you get a triangle shape with a rectangle under it.

Fold the rectangle part under the triangle upwards (as shown with the purple spots) – flip your origami and do the same on the other side.

Grab the center of the triangle shape as indicated on the first image above with the red spot and pull both sides (holding the red spot) out. Flatten.

You’ll get the shape as shown on the second image above (ignore that red spot in the left bottom corner – I have no idea how that one came there haha).

Fold the front layer up (as shown with the green spot) flip the origami boat to be and do the same with the back layer. You’ll get a triangle shape.

Slowly pull the top parts outwards and you have your paper boat!

More cool origami for kids you can try:

We’ve had a lot of fun creating this shark fortune teller – it’s fun to make and even more fun to play with. You should also give these origami frogs a try!

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• International

March 27, 2024 - Baltimore Key Bridge collapse

By Kathleen Magramo , Antoinette Radford, Alisha Ebrahimji , Maureen Chowdhury , Elise Hammond , Tori B. Powell and Aditi Sangal , CNN

Our live coverage of the Baltimore bridge collapse has moved here .

Here's what you should know about the Key Bridge collapse

From CNN staff

Officials recovered the bodies of two construction workers who were on Baltimore's Francis Scott Key Bridge when it collapsed early Tuesday morning after a 984-foot-long cargo ship collided into a pillar.

Maryland Gov. Wes Moore called the collapse Wednesday " a global crisis ."

"The national economy and the world's economy depends on the Port of Baltimore. The port handles more cars and more farm equipment than any other port in the country," Moore said.

Here's what you should know:

• The victims: The six people who are presumed dead were from Mexico Guatemala, El Salvador and Honduras, according to Col. Roland L. Butler Jr, the superintendent of Maryland State Police. Two bodies were recovered and have been identified as Alejandro Hernandez Fuentes from Mexico and Dorlian Ronial Castillo Cabrera from Guatemala. The two workers were filling potholes on the bridge and were later found trapped in a red pickup truck in about 25 feet of water, Butler said. The FBI is handling notifying the victims' families, Butler said.
• Recovery efforts: Authorities are pausing search efforts for the four other workers who are presumed dead, because additional vehicles are encased in concrete and other debris, making it unsafe for divers, Butler said. Once salvage operations clear the debris, divers will search for more remains, he said.
• The investigation: The National Transportation Safety Board is leading the investigation into the fatal incident, according to the agency's chair Jennifer Homendy. During a Wednesday news conference, Homendy said there were 21 crew members and two pilots on board the Dali cargo ship when it crashed into the bridge. She also said a senior NTSB hazmat investigator identified 56 containers of hazardous material, and that some containers are in the water. The agency received six hours of voyage data from the ship and the investigation could take 12 to 24 months to complete, Homendy said. She emphasized that NTSB will not analyze information collected or provide conclusions while on scene of the collapse.
• Looking forward: Department of Transportation Secretary Pete Buttigieg said rebuilding the bridge will not be "quick or easy" but that it will get done. He said there are four main focus points ahead: reopening the port, dealing with supply chain issues until its reopening, rebuilding the bridge and dealing with traffic issues until the bridge is rebuilt. Biden  pledged the full support  of the federal government in the response and recovery efforts. His administration has already conveyed a sense of urgency to open up federal funding to remove debris and ultimately rebuild the bridge. Maryland has submitted a request to the Biden administration for emergency relief funds "to assist in our work going forward," Moore said Wednesday.

It's almost impossible to place people on the bow of ship due to the unstable structure, fire official says

 From CNN's Sarah Engel

Baltimore City Fire Chief James Wallace said Wednesday that the cargo ship's bridge structure and containers at the bow remain unstable.

"It's going to be very difficult, if not impossible, and very dangerous, to place people on the bow of that boat right now," Wallace told CNN's Kaitlan Collins.

"Naturally, we're still very cognizant of the fact that there are hazardous materials on board the vessel itself," Wallace said, alluding to the National Transportation Safety Board saying earlier that 56 containers were carrying hazardous materials.

Wallace said his team is relying heavily on aerial recognizance, including drones. "That's the only way we're able to see in," he said.  

He added that the aerial surveillance has "been able to really assure us right now we have no [chemical] reactions on board." 

"It's just utter devastation," NTSB chief says of the bridge collapse site

From CNN's Aditi Sangal

Jennifer Homendy, chair of the National Transportation Safety Board, called the site of the Key Bridge collapse "devastating."

"It's pretty devastating, certainly, seeing not just what's going on with the cargo containers, but just looking at what was a bridge span — three bridge spans that is pretty much gone. It's just utter devastation," she said at Wednesday evening's news briefing.

She added that she is thinking of families who lost loved ones and those who are waiting to reunite with their lived ones.

NTSB interviewed the Dali's captain and some other crew members today, agency chief says

The National Transportation Safety Board has interviewed the ship's captain, his mate, the chief engineer and one other engineer today, according to Chair Jennifer Homendy.

The two pilots on board the Dali at the time of collision will be interviewed tomorrow, she added.

Cargo ship's voyage data recorder is basic when compared to an airplane's, NTSB chair says

From CNN's Tori B. Powell

The voyage data recorder on the cargo ship Dali was a "newer model" but is considered basic when compared to that on an airplane, according to National Transportation Safety Board Chair Jennifer Homendy.

"But it is very basic compared to say, a flight data recorder, where we would have 1,000 parameters," she said at a news conference on Wednesday.

The NTSB chief investigator Marcel Muise added:

"It's not a ship-wide system recorder, so most of the sensors that are being recorded are from the bridge. So things like GPS, the audio, rudder feedback, rudder commands are recorded on there. But not engineering, the temperature of each cylinder, power distribution sensors."

There were no tug boats with Dali at the time of the collision. That's normal, NTSB chief says

There were no tugs with Dali when the cargo vessel collided with Baltimore's Key Bridge, which is normal protocol, according to National Transportation Safety Board Chair Jennifer Homendy.

Remember: At 01:26:39 on Tuesday, Dali's pilot made a general very high frequency (VHF) radio call for tugs in the vicinity to assist, the NTSB investigator Marcel Muise had said.

"The tugs help the vessel leave the dock, leave the port and get into the main ship channel. And then they leave. Once it's on its way, it's a straight shot through the channel. So there are no tugs with the vessel at the time. So they were calling for tugs," she said.

NTSB chair says she saw some containers that were carrying hazardous materials in the water

National Transportation Safety Board Chair Jennifer Homendy said she did see some of the 56 containers that were carrying hazardous materials in the water.

When asked how many

When asked how many containers of hazardous materials were in the water, Homendy said:

"I did see some containers in the water, and some breached significantly on the vessel itself," she said. "I don't have an exact number, but it's something that we can provide in an update."

Homendy said that a preliminary report should be out in two to four weeks.

This post has been updated with more quotes from Homendy.

Bridge did not have any redundancy, unlike the preferred method for building bridges today, NTSB chair says

Baltimore's Key Bridge did not have any redundancy, which is included in the preferred method of building bridges in the present day, according to National Transportation Safety Board Chair Jennifer Homendy.

"The bridge is a fracture critical," she explained. "What that means is if a member fails that would likely cause a portion of, or the entire bridge, to collapse, there's no redundancy. The preferred method for building bridges today is that there is redundancy built in, whether that's transmitting loads to another member or some sort of structural redundancy. This bridge did not have redundancy," Homendy said.

There are 17,468 fracture critical bridges in the United States out of 615,000 bridges total, she said, citing the Federal Highway Administration.

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Baltimore Port: What impact will bridge collapse have on shipping?

PORT FEATURES

Current status of cargo ships inside port, cruise ships, london metal exchange warehouses, bunker fuel.

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North Korea fires suspected intermediate-range ballistic missile

North Korea fired a suspected intermediate-range ballistic missile into the sea on Tuesday in a possible test of a new rocket using solid fuel, drawing swift condemnation from South Korea, Japan and the United States.

Several people were injured in a shooting at a primary school in Finland early on Tuesday, and a suspect was later apprehended, Finnish police said in a statement.

Russian drones targeted energy infrastructure in overnight attacks on Ukraine's central Dnipropetrovsk and Kirovohrad regions, hitting an energy facility in the latter, Ukraine's military said on Tuesday.

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How the Key Bridge Collapsed in Baltimore: Maps and Photos

By Weiyi Cai ,  Agnes Chang ,  Lauren Leatherby ,  Lazaro Gamio ,  Leanne Abraham and Scott Reinhard

On Tuesday, a major bridge in Baltimore collapsed into the water seconds after it was struck by a cargo ship, sending vehicles on the bridge into the river below. The ship lost power and issued a mayday call shortly before it hit the bridge.

The ship, a 948-foot-long cargo vessel called Dali, was about a half hour into its journey toward Colombo, Sri Lanka, when it hit a main pillar of the bridge. All crew members are safe, according to the ship’s owners.

Follow our live coverage .

A mayday call from the ship gave officials enough time to stop traffic at both ends of the bridge. The waters where the bridge collapsed are about 50 feet deep. By Tuesday morning, six construction workers who had been fixing potholes on the bridge remained missing as divers and other emergency workers on boats and helicopters continued to search for them. Two others had been rescued, and one was in the hospital.

Francis Scott

Patapsco River

The ship left the Port

of Baltimore around

1 a.m. on Tuesday.

Where impact occurred

Direction of the ship

The ship hit the

bridge at 1:28 a.m.

The ship hit the bridge at 1:28 a.m.

Where impact

Source: Spire Global

The New York Times; satellite image by Google Earth

The lights of the ship flickered on and off as it lost power in the minutes before the ship changed bearing and hit the bridge.

Ship approached from

the Port of Baltimore

Road repair crews

Ship changed heading

as it neared pillar

Ship hit pillar

Southern and central spans

of bridge began to collapse within

seconds of impact

Northern span began to

collapse seconds later

Within 30 seconds of impact,

the central part of bridge had

entirely collapsed.

Source: StreamTime Live via YouTube

Timestamps are from StreamTime Live video.

The New York Times

The Francis Scott Key Bridge was opened in 1977 and carried more than 12.4 million vehicles last year. The bridge was one of the three major ways to cross the Patapsco River and formed part of Baltimore’s beltway.

The Port of Baltimore is a major trade hub that handled a record amount of foreign cargo last year. It is an especially important destination — the nation’s largest by volume last year — for deliveries of cars and light trucks.

Ship impact

To Chesapeake Bay

Sources: Maryland Port Administration, OpenStreetMap, MarineTraffic

Note: Ship positions are as of 2:46 p.m. Eastern time.

Overall, Baltimore was the 17th biggest port in the United States in 2021, ranked by total tons, according to the Bureau of Transportation Statistics. The bridge collapse brought marine traffic there to a standstill, with seven cargo or tanker ships stranded in the harbor as of Tuesday afternoon.

Gov. Wes Moore declared a state of emergency for Maryland and said that his office was in close communication with Pete Buttigieg, the U.S. transportation secretary. The White House issued a statement saying that President Biden had been briefed on the collapse.

Erin Schaff/The New York Times

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