Nujiang Bridge (prototype Huitong Bridge) is located on the Nujiang Grand Canyon at the junction of Shidian and Longling counties in Baoshan City. It is a throat fortress from Kunming to western Yunnan and even abroad.

The location of this bridge was originally a ferry, and it had existed since the beginning of the Ming Dynasty.

The locals call it the "Lameng" ferry.

During the Daoguang and Tongzhi periods of the Qing Dynasty, China's entry and exit ports were almost occupied by hunting rifles, and the requirements for land transportation began to gradually increase.

Under the advocacy of Rulun, the headline of Nujiang Province and Qin Kezhen, the Tongzhi of Yongchang Prefecture, it was decided to build the "Lameng" ferry into a bridge.

After hearing the news, patriotic expatriate Liang Jinshan decided to donate money to build a bridge between public and private.

The "two families" hit it off!

Therefore, the Qing Dynasty officials were responsible for handling the procedures, such as convening relevant construction workers, approving relevant bridge construction procedures to the construction team, etc.

Liang Jinshan was responsible for distributing part of the funds, hiring American Abland engineers to design, and then purchasing the materials needed to build the bridge overseas.

The structure of the entire bridge is a flying suspension bridge, and the most important iron cables all come from overseas.

This also ensures the quality of the bridge body!

At that time, the bridge construction materials were transported to the Nujiang River, which made great efforts.

First, they were loaded from Germany to Myanmar by cargo ship, then transported from Yangon, Myanmar to Lashio by train, then transported to Nankan, the Myanmar border, and finally carried it to Nujiang Bridge construction site by mules and horses.

The transportation process of bridge construction materials alone used thousands of manpower and material resources.

Due to the great difficulty in building a bridge, the Nujiang Bridge started construction in 1932 and was not completed until the end of 1935.

A single-street iron chain bridge has been built for three years.

It can be seen that Cambridge is difficult

After the Nujiang Bridge is completed, it will be thirty-six feet long and nine feet wide, and it will be less than 120 meters long, with a total width of more than 5 meters.

This length is just the length of the bridge. With the deeds and the cables and piers, the bridge length exceeds 150 meters.

A total of more than 200,000 rupees were spent.

At that time, due to the fact that the political situation was already quite chaotic, the bridge was not officially named after its completion, and it was still called the ferry.

It was not until January 1938 that the bridge was officially named Nujiang Bridge (Huitong Bridge).

at the same time.

In order to increase the value of the bridge, the Nujiang Bridge was repaired and strengthened again during the road construction, making the Nujiang Bridge reach 205 meters in length and the length of the bridge deck across the river close to 190 meters.

However, the main body of the entire bridge has not changed.

It is still made of 4 super-large iron locks and 17 giant steel cable flying frames produced in Germany, with a maximum weight of only about 7 tons.

Although this bridge is just a cable bridge, in order to maintain stability, it is limited by the width of the bridge deck.

Vehicles can only travel in one row when crossing the bridge.

However, this bridge was still the only large bridge on the Nujiang River at that time that could be opened to traffic, and it was the most critical node of the Yunnan-Burma Highway.

The successful completion of the Nujiang Bridge played an extremely important role in China's War of Resistance Against Japan, or the civil-sized Sino-Myanmar transportation, and the development of rich natural resources throughout Yunnan.

It is also the important role of Huitongqiao in fighting against Japan, which can transport 100,000 tons of materials to the country every year, so that mainland troops can continue to fight with the Japanese army.

The Japanese invading army was very angry when they looked at Huitong Bridge and sent several batches of planes to bomb Huitong Bridge.

According to relevant information, the Japanese army sent a total of 168 aircraft to carry out six key bombings, and dropped more than 4,000 bombs.

The most serious one was on October 29, 1941. 35 Japanese aircraft raided Huitong Bridge, breaking nine main horizontal cables.

Japanese news media were very proud at the time and broadcast to the world: "The Yunnan-Burma Highway has been cut off and there is no hope of opening to traffic within three months."

Unfortunately, the Japanese underestimated the strength of the Nujiang Bridge and misjudged the ability of the Chinese Bridge Protection Engineering Team.

After the timely repairs by the bridge-protecting warriors, on the morning of November 2, the Huitong Bridge, which had only been interrupted for 2 days and 10 hours, became bustling again.

It was not until the defeat of the first expedition in May 1942 that the Japanese 56th Division rushed forward with great momentum.

In order to prevent the Japanese army from heading straight into Chongqing, the heroes had to cut off their arm and use explosives to blow up the Nujiang Bridge, which finally stopped operating.

Huitong Bridge has been destroyed and reborn several times.

Every life and death, the bridge of Huitong Bridge is covered with the blood and lives of the warriors who protect the bridge, and is a witness to China's anti-Japanese history.

The Huitong Bridge, which was constantly bombed, was once a miracle in the history of the Anti-Japanese War in western Yunnan.

As of today in 1944, this sentence is still correct.

The Nujiang Bridge has experienced air strikes by more than 4,000 aviation bombs invested by the Japanese army, and can still be repaired in a short period of time, because its main structure has never been destroyed.

That is, as the largest load-bearing bridge, it is also the most important two ziplines on the left and right sides, and the main horizontal lock on the outermost side.

That is, it is equivalent to the most important load-bearing walls and load-bearing columns in a building.

Whether it was the Japanese bombs that were used by the Japanese army or the later in order to prevent the Japanese army from continuing to advance north, the bridge guards had to use explosives to blow up the bridge.

The blown-ups were all padded underneath, pulled horizontally to the opposite side of the bridge and laid wooden boards, and used for the seventeen steel locks to be opened to traffic.

The four wires with diameters exceeding 10 cm, connected from one end of the bridge to the other end of the bridge, and used iron locks buried deep underground with numerical roots to unlock the four ultra-large wires that fixed them on the bridge.

It is as stable as Mount Tai from beginning to end, and it has never stopped since its completion.

The reason why they are constantly bombed by thousands of bombs is because their material is very special.

At that time, German industry was the world's top, and these major iron chains reached a very exaggerated level in terms of hardness and toughness.

No matter what shells or aviation bombs it is, it is impossible to blow them up directly.

If they also want to disappear from above the Nujiang River, the only way is to break the two ends of the bridge, fix them deep into the ground with steel and cement in real time, and pull the 10 relatively small iron lock cables of these main iron locks.

But if you want to blow up these steel and concrete piers, you can only bury explosives by drilling holes at fixed points.

When Takeuchi's ligge team arrived in Matsuyama, they were indeed able to completely destroy the bridge end of the Matsuyama end, but Takeuchi's Lianshan did not do that.

The bridge guards can also completely destroy the bridge, but they did not do so.

The reasons are the same.

It is because the bridge is of great strategic value. Both sides are looking forward to rebuilding the bridge, and then the troops can pass through the bridge again.

Anyway, the horizontal iron locks on the bridge have been broken, and the people on the other side cannot get through.

After all, the warrior is not a juggling actor. He can slowly walk up to the iron lock more than 100 meters to the opposite side with the possible shooting at him.

This also led to the continuous explosion of Nujiang Bridge, which has lost the fireworks of the past between 1942 and 1940 years.

But it.

Although no one has rebelled against the bridge, he actually stands there.

You can say that he has broken down, or you can say that it has not broken down.

As long as you can find a way to connect the two super-large iron locks on the bottom with the remaining steel locks, and then lay some wooden boards to fill the gaps.

This already-blasted bridge can be put into use again.

Although the bottom side load-bearing iron lock is limited, the load-bearing capacity is limited and it cannot be opened to traffic.

However, it is no problem to let the soldiers run over the bridge with guns and attack the opposite Zhongshan position.

Even with guns opposite the Japanese army.

The Luding Bridge is less than two meters wide, and we Chinese soldiers can "snatch" it by climbing iron chains.

Once the Nujiang Bridge is repaired and laid with wooden boards, its width is close to nearly 6 meters, which is enough for the soldiers crossing the river to move around.

It was precisely because He Shaozhou knew about the situation of the Nujiang Bridge that he transferred an engineering team with American engineering technicians to participate and had sufficient experience in bridge repair.

The Nujiang Bridge has the possibility of restoration, and the bridge repair engineers have also arrived.

But how can we withstand the Japanese firepower and urgently repair a simple bridge over the Nujiang River that allows soldiers to pass through?

After a night of discussion, the technical personnel of the Chinese and American sides of the engineering team finally came up with a plan.
Chapter completed!