The bridge's name literally translates to 'Submergence Bridge' due to its engineering requirement to stay functional even when partially underwater.
It is the shortest and lowest bridge crossing the Han River in Seoul.
During the monsoon season, the bridge is automatically closed to all traffic when the Han River water level reaches critical height markers.
The underside of the bridge acts as a support structure for the larger, double-decker Banpo Bridge above it.
The bridge deck features integrated path lighting specifically positioned for nighttime pedestrian safety and visibility.
It connects directly to the Banpo Hangang Park, a major hub for outdoor recreation and riverside festivals.
Jamsu Bridge is a two-story submerged bridge spanning the Han River in Seoul, connecting Yongsan District to the Banpo neighborhood of Seocho District. The bridge is specifically designed to be partially submerged during high water levels and heavy seasonal rains. It serves as a popular pedestrian and cycling path, completely separated from the higher Banpo Bridge vehicular traffic. The surface is located just above the water line, providing a unique perspective of the river. It frequently hosts the Banpo Moonlight Rainbow Fountain display, which features water jets synchronized with music and LED lighting. As of September 2026, it remains a designated 'car-free' zone during weekends and specific seasonal event periods to encourage public leisure.
The center of the bridge facing the N Seoul Tower during the sunset hours.
Check the local river level reports before visiting during the monsoon season to ensure the bridge is open.
Bring a windbreaker or light jacket as the riverside air is significantly cooler than the city center after sunset.
Rent a public bicycle from the nearby station to traverse the bridge and explore the surrounding park loops.
Do not attempt to cross or enter the bridge area when flood warning signals or barricades are active.
Frequently closed to vehicular traffic on weekends; prone to closures during heavy rainfall or flood warnings.
Maintain lane discipline when cycling to avoid collisions with pedestrians.
