At the construction site, where a large excavation area is buzzing with earth-moving equipment, a small red vehicle stands in the foreground. A blue beam structure spans the gap, likely part of an underpass project near Colmenar Viejo station. City buildings rise against the clear blue sky in the background.

Box Jacking under C60 bridge
Colmenar Viejo station, Madrid

Description

Single span C60 temporary bridge to sustain the tracks and allow trains at 30 km/h speed during jacking operations underneath.

A total of 12 segments of 17 tons each, for a total weight of 205 tons and total length of 18 meters. Installation and pushing of the box executed in just 9 hours.

A construction site near the Colmenar Viejo station showcases a large rectangular concrete structure with exposed steel bars. Sunlight casts shadows across the surface like an underpass. Safety barriers and additional construction materials are visible in the background.