| Carries: | Footbridge |
| Locale: | Meixi Lake District, Changsha |
| Design: | Truss |
| Material: | Steel |
| Height: | 24m (79feet) |
| Mainspan: | 185m (607feet) |
| Designer: | Next Architects |
| Begin: | 2013 |
| Complete: | October 2016 |
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]