In 1959 when the No.1 Jianghan Bridge was built in Wuhan, allowing the riverside road to pass through its side span, our first half-cloverleaf grade separation was constructed.

• 1959年湖北省武汉市修建江汉一桥时，利用桥头边孔供滨河路通过，建成我国第一座半苜蓿叶形立交。