Krishna bridge in front of Almatti Dam and ParvatiKatti Bridge for Dam backwaters are part of new line alignment happened during Dam construction in 80's. Original British era bridge of river Krishna near Almatti is actually submerged and is behind the Dam now. You can see pillars of the old bridge during summer season, when water level is low. They may go for new double/single line bridge depends on the strength of current bridges now. Both present bridges, one in front of Dam and another ParvatiKatti(Girder) for back waters are of ~30 years old, they are not from British times.