Sunny riverside under the Negrelli Viaduct in Prague, with a glazed steel truss structure along the viaduct carrying a walkway, stepped stone terraces down to the Vltava, people sitting on grass and steps, a child on a skateboard, a girl running to her mother and a kayaker on the river

Academic Project

Viaduct Surf Club

Year: December 2023
Classification: Academic Project
Status: Erasmus+ studio project, ARCHIP
Location: Prague, Czech Republic
Designer: Gökalp Kalfa
Consultants: TutorJaroslav Wertig (opens in a new tab)Jakub Kopecký (opens in a new tab)
Recognition: Best Studio Project, 2023

SHEAFS Diagram

The Viaduct Surf Club project aims to establish a center for cultural, sporting, and social activities around the Negrelli Viaduct. In this context, the portion of the viaduct over the Vltava River and its surrounding shores constitute the project's area. The design process encompasses the development stages based on a needs analysis, including conceptualization and design. Additionally, the steel truss system will be placed on both sides of the Negrelli Viaduct, carrying the pedestrian and bicycle bridge between the island and the mainland.

When completed, it will meet the water sports needs of the local community and simultaneously become a tourist attraction. Furthermore, landscaping will be carried out to create viewing terraces for activities. This project aims not only to facilitate athletes but also to encourage community cohesion by providing a social environment.

Diagrams

01 / 04

Map of Prague and its surroundings tracing routes from the site to a steel truss factory 15 km away, a timber factory 20 km away and a granite quarry 45 km away, with notes on sourcing each material locally. — 01Local materials: steel truss, certified timber and granite, all within 50 km of the site.

Axonometric of the Negrelli Viaduct over the Vltava with coloured routes linking the train station, the river banks, the club entrance and the viewing terraces. — 02Connections between the train station, the viaduct, the river banks and the viewing terraces.

Exploded axonometric of the club along the viaduct, labelling the storage area, gathering area, WC and changing cabins, lecture room, first aid room and the viewing terraces by the river. — 03The programme along the viaduct: storage, gathering, changing, lecture and first aid rooms.

Exploded detail of a viaduct arch with a train on top, showing the steel truss, glazed facade, movable panel systems and removable stairs with seating inside. — 04Steel truss, glazed facade, movable panels and removable stairs.

Plan & Sections

01 / 03

Plan of the club inside the viaduct arches over the Vltava, with boat and board storage, gathering area, WC and changing cabins, lecture room and first aid room, and stepped viewing terraces stepping down to the water on the bank, with section lines A-A' and B-B'. — 01Plan of the club along the viaduct and the stepped terraces on the bank.

Long section A-A' through the viaduct arches, with a train on top and the club's floors, storage, seating steps and a paddleboarder inside the arches above the river. — 02Section A-A' through the arches.

Cross section B-B' through the viaduct with a train on top, pedestrian and cycle decks on both sides carried by the steel truss, the club floor below and removable stairs down to the river. — 03Section B-B': the walkways on the truss and the stairs down to the water.

Visualisations

01 / 04

Aerial view of the Negrelli Viaduct over the Vltava with trains crossing, the glazed steel truss structure along its side, a looping ramp to the bank, stepped terraces down to the water and kayakers, surfers and a river boat around it. — 01The viaduct, the looping ramp and the stepped terraces from above.

The riverside under the viaduct, with stepped stone terraces, people sitting on grass and steps, a child on a skateboard, a girl running to her mother and a kayaker beside the glazed truss. — 02The riverside terraces under the viaduct.

View from the front of a paddleboard on the Vltava towards the viaduct, with the glazed club inside the truss, a stepped seating box hanging down to the water and a paddleboarder with a dog. — 03The club seen from the river.

Interior of the club under the viaduct arch, with a bar, orange seating, hexagonal lights on the steel beams and white bean bags on wooden steps leading down to the water. — 04The gathering area and the steps down to the water inside the club.

3D Model

View on Sketchfab (opens in a new tab)