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The Blackwater Bridge Replacement Contract encompassed the demolition of the existing Blackwater Bridge, which carried the N2 National Road over the Blackwater River at Coolshannagh, North of Monaghan Town. The N2 is the main route connecting Dublin to Derry, which passes through County Monaghan, and this section of the route is used by over 12,000 vehicles per day. The reason for the bridge replacement was due to the bridge impeding the flow of the River Blackwater, leading to severe flooding events at the bridge location and further upstream. This section of the N2 route had been impassable on a number of occasions in recent years due to flooding events. The bridge had also exceeded its design life, and therefore was to be replaced in its entirety with a new bridge structure.