Civil Engineering Gouluqiao, after staying up late to draw the 101st structural drawing, he fell down, and when he opened his eyes again, he became the third son of the Wailang family of the Ministry of Industry in Daliang Dynasty. Good news: He is a second-generation official. He has no worries about food and clothing, and he also picked up a handsome body for free. Bad news: This is an era of war and people's livelihoods are in decline. The border fortresses are made of paper, the water canals in the capital are clogged, the official roads are in disrepair, and people basically rely on "swimming" when going out on rainy days... Lu Qiao looked at the "Girder Infrastructure Plan" in his hand, and slowly typed a question mark:? That's it? Professionally, but not completely. There was no CAD, no excavator, and even the cement had to be burned from scratch. Everyone thought that Sanlang Lu was an embroidered pillow who only talked about empty talk. When he proposed to build an "arch dam" to store water, the old ministers lamented: "This is a strange skill and may offend the river god!" When he designed the "bastion" drawings, the generals sneered: "It's all fancy but useless!" When he promoted "public toilets" and "sewage systems", the people talked a lot: "Isn't this noble man some weird guy?" Until - When floods hit, the embankments he designed remained standing, protecting all people. The enemy army besieged the city, and the fortress he supervised made the enemy soldiers bruised and bloody, and returned without success. The capital has a completely new look, no more plagues, and everyone lives and works in peace and contentment. The cold-faced general Xiao Jue who once looked down upon him is now following him around every day. "Roadman, please plan the northern defense line." "Roadman, is there a more convenient way to build this marching bridge?