(a) the number of Railway bridges in various zones of Indian Railways, Zone–wise;
(b) whether any study/survey has been conducted to assess the useful life, repair and renovation of bridges, if so, the details thereof;
(c) whether the Government has introduced any scheme for reconstruction/strengthening of rail bridges, State–wise especially in the backward and tribal areas of Maharashtra, if so, the details thereof as on date; and
(d) the funds allocated and utilised for the said schemes during the last three years and the current financial year along with status of such bridges?