Construction beginning/end
Shortly after the Treaty of Widowhall, the Eorl of Winds and Lord Moera agreed to share the bridgefort so that nothing further would happen to it. To seal the deal, Lord MOERA had the bridge rebuilt.
As there was some loss of life from Winds folk when MOERA tore the bridge down there remains some bad blood over the decision. This was the primary reason that MOERA agreed to rebuild it at their own expense.