Mollinary stone bridge sustainably rehabilitated

Halfway between Zagreb and Rijeka in central Croatia lies the town of Ogulin on the river Dobra. A stone bridge from 1874 crosses the river here, named after the Austro-Hungarian officer and writer Anton Mollinary. The bridge with its five round arches is 72 m long and around 7.5 m wide. It is part of the Rudolfina Road, which connects Ogulin with the town of Novi Vinodolski, and counts among Croatia’s heritage-protected structures.

Old stone bridge in need of immediate rehabilitation

The Mollinary Bridge had not been repaired for a number of decades. The adverse weather conditions in the mountainous region had led to a massive deterioration of the structure over the years. The bridge had large cavities and cracks, and the reinforced concrete deck slab was so badly damaged that immediate repairs were necessary. The district council responsible involved MC Croatia in the project from the initial planning stage through to execution. MC not only supplied the necessary products, but also provided expert support to the contractor, VACON d.o.o. from Karlovac, in all phases of the project.

In April 2023, work began on sealing the parts of the bridge in contact with water using the injection resin MC-Injekt 1264 Compact. This easily injectable, low-viscosity duromer resin exhibits a high penetration effect when force-filling cracks, joints and cavities, is optimally compatible with moisture, and cures quickly and safely even under dynamic stress.