The location of the Outer Jinshui Bridges strictly corresponds to five arched gateways of the Tian'anmen Gate, and south gates of the Imperial Ancestral Temple and the Altar of Land and Grain. The layout, width, and decorative details of the bridges all reflect the planning principle of "choosing the center." They have borne an important ceremonial function ever since their inception In the Ming and Qing dynasties, used for entering and exiting the imperial city and passing from the Forbidden City to the southern suburbs when the emperor went out to participate in worship ceremonies. Today, it is still an essential part of the ceremonial space where important state celebrations are hosted.