The Minister of Works, Dave Umahi, has said rehabilitating the Third Mainland and Carter bridges in Lagos will cost N21 billion and 25 billion, respectively. Umahi disclosed this during a Friday tour of key infrastructure projects in Lagos with the National Assembly Joint Committee on Works. The Minister said there is a need to declare an emergency on the two bridges to avert a reconstruction cost of N6 trillion. He warned of the substantial financial and safety risks posed by continued delays of the rehabilitation works. “The cost of rehabilitation of the Third Mainland Bridge is estimated at…