Brisa informed this Wednesday, February 18, that the works on the section of the A1, which collapsed due to the collapse of a dike on the Mondego River, in Coimbra, should be completed by the end of the first week of March.at the end of the first week of March.
“The forecast is that the full opening of A1 may occur by the end of the first week of March, depending on a favorable decision from the IMT and technical opinion from the National Civil Engineering Laboratory”, says the company, in a statement sent to newsrooms.
Until then, Brisa proposes a conditioned opening, “using the South-North platform, to restore circulation, given the strategic importance of the A1 for national mobility”.
If Brisa’s proposal receives the favorable opinion of the authorities in the coming days, “traffic will be tilted along approximately two kilometers, allowing circulation in both directions, limited to one lane per direction”explains the company.
Brisa also informs that it has decided to award the repair of the embankment and paving of the North-South lane, work on which began this Wednesday, in order to “reduce the initially scheduled completion time” of the work by between one and two weeks and “minimize the impact on users” of this road.
In less than a week, Brisa also reports, “the work on the outer rockfill of the embankment and the stabilization of the transition slab in the South-North lane were completed”.
The collapse of the A1 section occurred last Wednesday (February 11), at kilometer 191, near Coimbra, after the Mondego river dike broke, “which led to the excavation of the embankment next to the northern junction of the viaduct”. “The situation resulted from an absolutely exceptional flow, exceeding 2100 cubic meters of water per second”, says Brisa, referring to “an anomalous and external scenario” to the company.
In the note, Brisa estimates that the “reconstruction of the platform will be completed in 10 days and the total restoration of circulation should take place within a period predictably just over 20 days after the incident”, which it considers to be “an extraordinary recovery time for a project of this size and complexity”.
The company states that it has been working in permanent coordination with the IMT, with technical assessments from LNEC and the Ministry of Infrastructure and Housing, and ensures that “every effort is being made to reestablish, as quickly as possible, with quality and safety, circulation on the A1”.
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