I/9 Vehlovice, Bridge 9 - 020, Czech

Project I/9 Vehlovice, Bridge 9 - 020, Czech
Client RSD CR
Stage Complete
Description Replacement of an old stone bridge with a new structure

Fact File

Structure CM4 64 wall x 15 roof arch precast system
Span 6,9m (internal)
Height 6,3m (internal)
Length 11m


On the first class road I/9 in section Melnik - Duba, there was a gradual reconstruction of several bridges. These were typically in very bad condition and were planned for demolition and total reconstruction. This was also the case of the bridge No. 9-020.

The original construction of the arched bridge marl stone was in very bad condition after many ears in use. The new support structure was designed initially as a cast-in-situ solution. However, having considered all the circumstances and risks of the planned construction progress, ie, transportation and installation of casing into a deep trench and then casting itself in several stages, the concept of a massive in-situ arch was replaced by thin precast arches. The approval of this change was supported by the lower cost of the precast structure and the fact that the structure would be installed in just one day, without traffic restrictions on primary roads.

The architectural design included spandrel walls of bricks connected with the reinforced soil. The whole structure is a very good example of current trends in the field of geotechnical engineering, ie, subtle and flexible concrete structure consisting of a reinforced earth embankment. The bridge is also designed for extreme load special equipment weighing 531 tons or 2x392t as per the Czech Standard CSN 73 62 03.

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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