"No need, I have already discovered the situation over there." A clear voice came from the sky in the night wind.

Before he finished speaking, the Great Elder Linghu, who had disappeared a moment ago, had stood firmly opposite the few people. He was shocked by the white-haired young man who came from the sky like a terrifying geese, Yang Chunfeng, the palace maids and eunuchs around him, and the important officials behind Qin Mu were all shocked. Emperor Xuanyuan and Prime Minister Qin Mu had no different expressions.

Qin Mu quickly asked, "May I ask the Great Elder, what's going on over there?"

Elder Linghu said: "I just submerged the top of the tower. After feeling the earthquake, I arrived quickly. The main change there was that Nanling Mountain collapsed and broke out a huge gap nearly one kilometer wide. Now, a huge amount of Yuanjiang water was roaring and rushing into this large gap at a rapid speed. Even due to the rockfall and the changes in the terrain itself, even the water from the lower reaches of the Yuanjiang River flowed to the gap. Apart from this, there was no other major change, that is, the river channel needed to be cleaned."

Qin Mu said to a person beside him: "What is the terrain south of Nanling Mountain?"

Emperor Xuanyuan knew that this man was Li Luhai, the Minister of Works, and was a top expert in building large-scale projects. He knew very well about the mountains, rivers and geography within the empire.

The Imperial Ministry of Works is a gathering place for technical officials. At this time, it is time for the Ministry of Works to show its skills, so Qin Mu can not take any other people, but the Minister of Works must not be left behind.

Li Luhai looked around and saw the soil in the flower bed in the distance, so he wanted to run over to get it.

"Do you want to make a sand table?" asked the Great Elder Linghu.

"Yes." Li Luhai said respectfully, adding: "I can make the terrain there soon, which is convenient for explanation. The specific location and depth of the landslide mentioned by the great elder just now also need to point it out to me later." He did not know the specific identity of the great elder Linghu, but just shouted with Qin Mu.

The Great Elder Linghu nodded and waved to the ground. The smooth ground, which was mixed with unique clay and glutinous rice and other mixtures of unique clay and glutinous rice, became as delicate and soft as flour, but the people around him could not feel the leakage of strength, and there was no vibration on the ground.

"Do you need water?" he continued.

Li Luhai nodded blankly.

Soon, in a rockery pool a hundred meters away, a stream of water flowed rapidly from the void like a winding snake, and plunged into the soft flour sand. The sand was affected by the invisible spiral force and quickly rotated and stirred for a few breaths. When they showed their bodies again, they had turned into a ball of mud like dough.

Li Luhai had no time to be shocked, so he rushed up and quickly played the mud-pinning game. Behind him was a minister of the Ministry of Works, who was also his important assistant, and followed him silently to cooperate.

Soon, a concrete and tiny terrain was pinched out by him. He told his assistant to continue to improve the details. He began to point to the sand table model to explain to Emperor Xuanyuan and Qin Mu.

First, he pointed to a deep valley that came from north and went east, and said, "This is Yuanjiang."

He also pointed to a mountain range that blocked the south bank of the Yuanjiang River and was forced to divert to an east-west mountain range that flowed eastward, and said: "This is Nanling Mountain."

Then he asked Elder Linghu: "Where is the exact location of the collapsed place and what is the depth?"

Elder Linghu thought about it, and a force shot out, cutting a gap into the complete Nanling Mountains at a point downstream of the corner, saying: "The position, the depth is probably like this."

Li Luhai nodded and pointed to the south of Nanling Mountain and said:

"The terrain of the Tianyuan Continent is high in the north and low in the south, and the lower the further south. The lower the terrain is. Nanling Mountain has an almost elliptical canyon basin landform that is 80 kilometers wide from east to west and 230 kilometers long from north to south. Its lowest point is 932 meters lower than the Yuanjiang water surface on the north side of Nanling Mountain. On average, it is about 480 meters lower than the Yuanjiang water level.

The location is dangerously remote, and there are not many people in normal times. Only some hunters and herb collectors are involved. With the size and depth of this gap, considering the flow rate and flow of the Yuanjiang River in this season, the water in Yuanjiang will accumulate in this canyon basin within five days, creating a huge deep-water lake out of thin air. After that, the water level will overflow here, here, here..."

As he said that, he pointed to eight or nine relatively low places in the sand tray: "At that time, a large amount of Yuanjiang water will travel south randomly. Moreover, if the mountains in some places are fragile and the huge lake collapses, the areas in several states to the south will suffer from severe floods, and the closest few prefectures and counties will even cause great casualties to the people, and the damage to the world and other losses are uncountable."

Qin Mu quickly asked, "Then what should we do?"

Li Luhai said: "Fortunately we have five days of buffering time. If we can complete the following points in these few days, then we can not only subdue disasters, but also turn harm into profits."

While pointing out the location of the sand table, he made suggestions and arrangements: "First, we must organize people to immediately clear the obstacles blocked in the river, and try to let the Yuanjiang River flow along the river. Also, although this huge gap cannot be blocked, there are three places here that can fill a large amount of rocks, which can minimize the water flow to the canyon basin and win more time for us."

At the same time, he pointed to several low places around the canyon basin that he had just pointed out that the water would first overflow, and said, "This, there are also here, the gaps are relatively narrow, and the rocks on both sides are relatively thick, so people can organize their hands to block them.

There is a naturally developing river five kilometers south of this land. The terrain along the way is relatively low. If you clean it up, you can connect it to a river channel. In addition, you should make the gap as large as possible, so as to try to let more water flow out from here and reduce pressure in other places. Also, you can also drain it out separately here."

Li Luhai pointed out the specific treatment measures for each gap one by one, and said: "Finally, a large number of personnel must be sent to patrol the situation in other places at any time. Once a large amount of groundwater is found to be gushing out, other dark passages or other hidden dangers must be reported in a timely manner. At that time, the governance plan will be decided on the spot. In addition, people will be sent to search and rescue the herbicide collectors and hunters who were surrounded by the flood in this canyon basin."

Qin Mu nodded and asked, "How many people are needed in total?"

Li Luhai said: "Because this is a race against time, every place must be constructed at the same time, and results must be achieved within a few days, so there are a lot of people needed. I expect that 140,000 people are the most appropriate, because the working environment is so large, no matter how many, you can't arrange it."

Qin Mu asked: "How many people can the Ministry of Works gather in one day?"

Li Luhai looked embarrassed and said, "You can only gather 20,000."

Emperor Xuanyuan interrupted, "I will immediately order all the ruling army and the Erzi battalion that the two kings are forming to rush there as quickly as possible. The Ministry of Works immediately prepared a plan and command personnel to rush to Yuanjiangwan to meet. There is still more than 30,000 left. You can just collect it in one day and send it there."

Li Luhai breathed a sigh of relief and said, "These people are much stronger than our workers. If they can obey commands in everything, they can ensure that this task can be completed in time!"
Chapter completed!