Tokyo Bianliang was built because of the Bian River and prospered because of the Bian River. It was precisely because of the water conservancy of the Bian River that it could support more than one million people, military and civilians in the city, making it the second super metropolis in history after the Chang'an City of the former Tang Dynasty.

However, everything has its pros and cons. The water of the Bian River can nurture all people and will also bring disaster to the people in the city. When heavy rain continues and the river water surges, it will naturally affect the safety of the capital. In particular, river water is introduced into the city for irrigation, drinking, and washing various uses, and crossing the entire Bianjing, which makes this hidden danger even more terrible.

Fortunately, the city of Bianjing, located in the heart of the Central Plains, has always been rainy, and has not encountered a heavy rain that can bring floods in decades. In addition, the various drainage channels in the city were arranged long before the establishment of the Song Dynasty, so it has been peaceful for nearly a hundred years.

But the situation this year is very different. Since the Mid-Autumn Festival in August, the continuous autumn rain has not stopped. The rain, large or small, has continued to sprinkle, which has made the water of the Bian River several feet higher than in previous years. It is almost flooding from the top of the river embankment in the city. This makes the relevant officials in the court extremely nervous. They sent many officials to guard the riverside early to prevent accidents. Even some villages and towns downstream were cleared. Once the water in Bianjing City is full, the water will be released downwards and the capital will be saved.

The Ministry of Works, Kaifeng Prefecture, Street Department and other three yamen also sent officials to guard several important rivers day and night to prevent breaches and other things. Although the Bian River embankment was consumed by the court and collected tens of thousands of people and worked hard to build it, which was more reliable than the Tokyo city wall, everyone still did not dare to slack off and still had to keep an eye on it.

Zhao Sicheng of the Street Department has been guarding the dam upstream of the river as an eighth-rank official for half a month. Every day, he would be a little scared when he looked at the water rising inch by inch. He would wake up several times when he went to the residential houses he had to sleep at night. Because he knew that if something really happened, let alone the river flooded Tokyo City, as long as he overwhelmed the river bank and soaked the residential houses nearby in the water, he would be a serious crime.

Fortunately, under his strict requirements these days, the soldiers and civilians on the river bank did not dare to slack off at all, and finally they were safe and sound. But today it was raining again, and the river water was almost level with the top of the dam, which made him panic again, but he didn't know what to do. He could only prepare a sack full of sand and stone, and stop it if something was wrong.

Just as he pulled his hoarse throat and directed the soldiers under his command to do business, a group of about ten people suddenly walked towards him, seeing that their outfits should be from Kaifeng Prefecture. This made Zhao Sicheng feel nervous, and he just thought something was wrong there, so he hurriedly took a few steps and met him. He didn't see the appearance of the person coming clearly and asked, "But do you have any instructions downstream?"

The young man in front of him respectfully saluted him: "Secretary Sun Tu has met Zhao Sicheng, I have something important to discuss with you."

"Well? Are you Sun Tu?" Zhao Sicheng looked at Sun Tu. He naturally heard of this person, and then he said in confusion: "As far as I know, the river embankment is not within your responsibility, why are you here?"

"Although the officials have not taken on such a heavy burden, as an official in the court, it is a responsibility to protect the safety of millions of creatures in Bianjing City." Sun Tuxian said something nice, then turned his head to look at the turbulent water of the Bian River next to him: "The rain has continued in the past two days, so the pressure on the river embankment must be quite large, right?"

"That's natural. In fact, I have reported to the court, hoping to agree to open the gap downstream as soon as possible to release the river water to reduce the burden in the city. How could he say that..." As he said that, he sighed helplessly.

Logically speaking, the capital was almost flooded, and the downstream areas should have been abandoned to release floods. But because many of the manors there were owned by the royal family and some powerful people, this plan was delayed, and the pressure fell completely on the heads of the officials guarding the river bank. But he naturally couldn't tell Sun Tu directly.

Sun Tu did not engage in many troubles in this matter, but smiled and said, "It is indeed hard for Zhao Sicheng and all the military generals, but the officials thought you didn't have to worry so much. There is still a way to lead the river to other places and not pose a threat to my Tokyo."

"How do you say this?" Zhao Sicheng immediately became interested. Now, besides giving up the downstream large manor fertile fields, is there any better countermeasures?

"Si Cheng, please look there!" Sun Tu pointed to them in front of them. There was originally a rainbow bridge spanning the Bian River, but due to the excessive water, half of the bridge body had been covered. Zhao Si Cheng looked at it for a while but could not see any clues: "Is there anything wrong with the bridge?"

"It's not on the bridge, but under the bridge. Isn't there a canal entrance there? The river water cannot enter because it is blocked by the gate. If the gate is opened, the river water will naturally pour down the bottom, and the situation here on the river embankment will be greatly alleviated. What do you think?" Sun Tu explained patiently.

Zhao Sicheng was stunned thoughtfully and quickly began to think about it. In fact, as the street Sicheng, and this time he was transferred to manage the river, he naturally had some understanding of the underground culverts in the city.

However, the underground culverts in Tokyo City are connected to the entire city. In the eyes of ordinary people, it is the Guifan Tower, Wuyou Cave, and a good place for many bad thieves to escape and hide. But in fact, when this capital was built, the government and the court were for sewage and water drainage. Otherwise, these millions of creatures would have been dirty in the city.

However, for some reason, the court only used these ditches and hiding channels for daily use, but threw the use of river water aside. This may be related to the fact that Tokyo City had never encountered water problems for decades. Anyway, no one had to open the gate of the ditches below to reduce the pressure on the river above.

Although Zhao Sicheng saw this, his official humble and gentle words were speechless at all, so he kept dragging on this matter. Until today, Sun Tu pointed this layer in front of him, which made him feel refreshed. But then, he hesitated again: "The Ministry of Works is in charge of the ditches and gates. Unless the Ministry of Works nods, the official can order the gate to open the drainage and drain water."

"Si Cheng is so bad that he should follow the power of the matter. Now the river embankment is in danger. If you ask the Ministry of Works for approval, or even report it to the Government Affairs Hall, and ask your ministers to discuss a result, you are afraid that the river will flood Tokyo City. In my opinion, it is better to quickly open the gates upstream and downstream at the same time and release water into the canal."

"Although your words make some sense, but..." Zhao Sicheng still looked embarrassed, but then he changed his face and looked at Sun Tu with suspicion: "No, why did you make such suggestions to me, but he has other intentions? I remember that many people had run into the ditches from the gate there before, and you want to let the water flood people!"

Earlier, the abnormal behavior of the fan swallows turning down the river channel and entering the gate was also under their attention. However, the other party did not intend to destroy the river embankment, and they had other responsibilities, so they did not stop it. Thinking of Sun Tu's identity as the head of Kaifeng Prefecture, Zhao Sicheng finally turned around and stared at the other party with a vigilant look on his face.

Sun Tu did not deny it, and immediately nodded and said, "Si Cheng said it right, the subordinates have this intention. These thieves have done many evil deeds, but now they run into the underground hibernation, which makes people helpless. Only by attacking them with water can they catch them all in one go. And doing so can solve the urgent need for river floods, which can be said to kill two birds with one stone."

"No." Zhao Sicheng immediately shook his head and objected: "If you don't mention the Ministry of Works, you may not agree. If something happens, I will not be able to bear it. The lives of those people in the ditch alone cannot be decided at will with just one word. I will never agree to such a thing!"

Looking at the other party's firm look, Sun Tu's eyebrows quickly raised: "Does Zhao Sicheng really refuse to make a decision for the people of Tokyo?"

"Although I am willing to serve the people, I have no right to issue this order."
Chapter completed!