Lucky Knot Bridge

Lucky knot bridge (or knot bridge or knot footbridge) spans the Dragon King Harbor River in Meixi Lake District, Changsha, China. The 185 m long and 24 m high pedestrian truss bridge, which is bright red in colour, was designed by NEXT architects based in Amsterdam and Beijing and completed in October 2016.^[1][2] The bridge, which started out as a design for an international competition in 2013, was designed keeping tourist activities in mind. The design is inspired by a Möbius strip as well as Chinese knotting.^[3] However, mathematically, the bridge forms a two-sided surface, in which the top side of one of its pathways loops back to form the bottom side of the other pathway, so it is not a true Möbius strip.^[4]

External image
NEXT Architects Lucky Knot Photography Julien Lanoo [5]

Lucky Knot Bridge
Coordinates	28°11′35″N 112°52′49″E
Carries	Footbridge
Locale	Meixi Lake District, Changsha
Characteristics
Design	Truss
Material	Steel
Height	24 m (79 ft)
Longest span	185 m (607 ft)
History
Designer	Next Architects
Construction start	2013
Construction end	October 2016
Location