Ski Resort Jasna. Slovakia

Project The extension of a ski track OHDZ Grand—Brhliská, structure SO-07
Client Dopravoprojekt A.S.
Stage Complete


ABM were recently called upon to participate in an urgent mission on the northern slope of the Chopok Mountain in the Low Tatras in Slovakia.

Plans were rushed to improve the recreational facilities for tourists in this picturesque region by extending its ski slopes and bringing it to a new ski lift station lower in the mountain. In doing so an important road had to be crossed to maintain both regional and local access and this demanded quick assessment to determine a solution. ABM’s arch has been affectionately known as an “igloo”

To further complicate matters the road is on a 5% grade and follows a curve on horizontal alignment with a radius of 30 m to create a helical configuration in the bridge clearance envelope.

Jasna Low Tatras Ltd, with their engineers Dopravoprojekt selected ABM’s precast modular arch system to form the bridge after considering other technologies, including an in-situ concrete frame and other metallic systems. The main reason was that the rapid construction of the bridge using off-site resources minimized the risks associated with construction. Furthermore, the enhanced design and service life of the structure in severe high mountain conditions was listed in addition to the requirement for little maintenance. The improved appearance of the concrete tubular form was also cited as a strong reason for selecting ABM

The Matière arch system was designed in three weeks and involved complex geometry and load analysis since each component of the helix required special formwork to deal with skewed edges and bespoke wing walls varying at each end. ABM manufactured the units at their newly set up precast plant in Banska Bystrica in Slovakia and manufacturing was complete in just over a month from instruction.

The installation of the structure was at an altitude of 1140 meters above sea level so is easily the highest structure we’ve built so far. It was also one of the most complex where each component required details setting out in the horizontal and vertical plane so to complete in just 6 days was of great benefit to the locality.

The internal span of the structure is 11.3 m which provided a vehicle clearance envelope of 7.5m x 4.2m in addition

Click here to view a YouTube video of how ABM construct a bridge in 3 days

Key Personnel

Main Board Directors
Pat O'Neill
Sean Minihane
Brendan O'Neill


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