Fort d'Andoy

Fort d'Andoy is a military fortification near Namur with a triangular ground plan surrounded by a defensive ditch. The structure demonstrates early use of reinforced concrete in late 19th-century fortification design.

The fort was built between 1888 and 1892 under General Henri Alexis Brialmont and marked a shift in Belgian military engineering. It represents an early application of reinforced concrete as a primary material for defensive structures.

The structure stands as a testament to Belgian military engineering, marking a departure from traditional masonry construction methods used in neighboring French fortifications.

The site is currently on private property and not open to the public. Visitors should view it from outside or inquire in advance if any special tours are available.

The fort featured innovative approaches to fortification engineering, yet had internal layout weaknesses that proved problematic during wartime operations. The positioning of ventilation and supply facilities was poorly suited for defensive effectiveness.

Location: Namur

GPS coordinates: 50.44118,4.94176

Latest update: December 14, 2025 18:45