There were no big boats passing through the upper reaches of the Yellow River.
Small boats came and went, stopping at special places to transport goods.
If it was really impossible to pass through, they would risk their lives.
Usually, fishermen would fish on the Yellow River and would not touch the pontoon bridge.
At the upper reaches of the Yellow River, there was a remote area where the Protectorate General and the army were stationed.
Trackers were needed to travel up the Yellow River.
The Yellow River was not fully used. Otherwise, if one traveled from the Yellow River, they could reach Min Mountain in one go.
After traveling a distance by land and crossing water, they could reach Yizhou.
Luckily, the Tujue and Tubo did not have good shipbuilding skills. Otherwise, they could reach Chang 'an directly if they found a river.
Traveling from there to Chang 'an was considered downstream. If the Yellow River was used well, it would be advantageous.
In the Tang dynasty, there were no longer ships. They would not choose to travel up the Yellow River. Instead, they would take a long detour and transport goods by land.
Now, there were ships. When iron pontoon bridges connected the two sides, it became an obstacle to the transportation of goods.
Li Longji found a map and looked at it. "There are few people there. We have to take a big detour to transport goods."
"Third Brother, it's easy to travel back after the Yellow River. Hami melons, raisins, and livestock. We don't need trackers. The consumption on the road is people eating and drinking. There are no cows or horses. "
Li Yi drew a line on the map.
"Hukou." Li Longji pointed at the most important position.
"Our ships are not big. One of the ships is to build a canal beside the waterfall. The other is to build a track and travel on dry land."
Li Yi knew about the Hukou Waterfall. Ships could not travel there.
He could solve the problem by using the method of traveling on dry land. When the ship reached the waterfall, the goods on the ship would be carried ashore and the ship would be carried ashore.
When they reached the other side, they would put down water. This way, they could pass through.
However, they could build a canal that was two meters deep and ten meters wide. They could go around it and small ships could pass through.
If they insisted on traveling on dry land, they could add tracks and iron rails. When the ship was in place, they could pull people up.
Livestock could also help. The problem of the Hukou Waterfall was solved.
It was not like he needed to travel on large ships in his time. He had been thinking of ways to build large ships.
Li Yi felt that a total weight of five tons would be enough. Three tons would not be a problem as long as the quantity was sufficient.
"Third Elder Brother, look, if we transport goods from the Yellow River to the other side, Tubo can attack us if they want to. We have to cross the Han River and enter the Yangtze River.
Take the Yellow River. If that doesn't work, we'll just set up a point above the mouth of the Hukou. Or we'll take the land route and use the railroad tracks to transport them to a place to unload and unload them. "
Li Yi scratched a few more times on the map. The most important thing was that a few pontoons had been affected.
Li Longji looked at it seriously. When it came to transportation, he had to be careful.
"If it's a pontoon bridge, can it be separated?" Li Longji's mind was active.
"Of course. The pontoon bridge has always been built in places where the water flow is not very rapid. Small boats can pass through by taking apart a section, then throwing a rope to the other side and connecting it again."
Li Yi spoke of the pontoon bridge that he once had. It could still be untied, and the iron chains were still hanging.
If the ship needed to be navigated, it would be taken down. After the ship left at night, it would be reconnected in the morning.
There would be people in charge of withstanding the impact of the river and using the rope to return the bridge to its original position. It was very convenient.
"It will require a lot of money." Li Longji started to talk about the economic accounts.
"Fees will be collected. The ships that come and go will have to pay a fee. The construction costs will be covered in a little bit."
Li Yi had a way. This was not a matter of whether he invested or not. It had to be done according to the rules.
Now, people on both sides of the pontoon bridge were free of charge. In history, which was also Li Longji's era, using iron chains to cross the pontoon bridge was also not charged.
How can the commoners cross the river and be charged? They did not have money.
Bringing a basket of eggs to sell and taking a few eggs from them?
You can't charge for the pontoon bridge, but you can charge for the ships.
Loading a ship with eggs to sell, isn't it normal to charge a few dozen eggs as a fee?
Li Longji's eyes lit up: "How much should I charge?"
"Let's build it first. At least I, Zhuangzi, am preparing to build a fleet. If the imperial court does not invest, I will invest. My Zhang family fleet will not pay, and I will charge the rest."
Li Yi did not know how much he should charge. There was no artificial canal yet. It was too early to talk about it. It depended on whether the transportation capacity was good or not.
Li Longji was tempted: "Brother Yi, design a simple map. I will send it to the higher-ups and find someone to study it and figure out how to operate it."
"My design is a complete set of maps. There is nothing simple about it. If we want to go around the Hukou Waterfall, the waterway must be curved. Otherwise, the drop will be too big.
In the future, during dry periods and when there is little water, we can lower the bridge pier and raise the height of the water. A normal medium-sized ship will be able to pass through.
Then, we will add sails. When the wind is good, it will help the ship to accelerate. "
Li Yi did not dare to think about moving a ship that was a few hundred tons. A medium-sized ship could carry a full load of 15 tons, including the ship's weight.
A canal was enough. Do not underestimate the transportation capacity of a medium-sized ship. When the number of ships reached a certain level, everything would be different.
Forget about the goose ships. They would not be able to withstand the water.
Li Longji continued to look at the map: "Brother Yi, there are some places where the water flow is too fast. Can we move it in sections? The ship will be in charge of transporting it at the dock."
Li Yi looked at his third brother in surprise. Not bad. He knew how to move the ship in sections.
Yes, that's right. My place used to move it in sections. Why were the ancient people so smart? It was starting to be difficult for him to act cool.
"Third brother, when there is more iron, we can build a waterway at the side of the river. Then, we can attach a buckle to the waterway and use the waterwheel to move the ship."
Li Yi felt that he should still perform. Hydraulic drive, hydraulic cheat.
"First, make a small one in Zhuangzi for me to see." Li Longji did not understand. He wanted to see the real thing.
"Okay!" Li Yi agreed. It was useless to just talk about it.
The village used the river to make one, and then made a small model.
Artificial flushing, placed there for everyone to see, it was clear at a glance.
"If it works, Minister Bi will be upset. He will have to spend money." Li Longji said with a smile.
"There is no need for the Ministry of Revenue. I have the money to handle this project. I can support it."
Li Yi did not mind. Money was easy to solve.
"Then he will be even more upset. In the future, the money will have nothing to do with him. You will be the one paying." Li Longji felt sorry for Bi Goo.
"Third brother, after another year, Old Bi will have to leave the Ministry of Revenue. Yao Chong will be gone this year. There is also Zhang Shuo and Lu Huaishen. The Prime Minister cannot stay in that position for too long. "
Li Yi knew that Li Longji did not want to stay in the Prime Minister position alone.
Yao Chong would be gone this year. It had nothing to do with his mistakes. It was time.
After he was gone, he would still look for Yao Chong to ask for advice.
A cup of wine could release military power. The Prime Minister would take turns.
Li Longji nodded slightly. That was what he thought, and that was what he did.
Thus, there was the so-called Kaiyuan Golden Age. The Golden Age was the Imperial Court's Golden Age, not the people's.
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