A bleed air cooling system for a gas turbine engine, comprising: one or more bleed flowpaths operably connected to a bleed outlet to divert a bleed airflow (66a, 66b) from a gas turbine engine flowpath, each bleed flowpath including: two or more bleed ports (58a, 58b, 58c, 58d) disposed at a separate axial location of the gas turbine engine to divert a bleed airflow from a gas turbine engine flowpath; a bleed duct (60a, 60b) in fluid communication with the bleed ports (58a, 58b, 58c, 58d) and configured to convey the bleed airflow from the two or more bleed ports to the bleed outlet; a valve (74a, 74b, 74c, 74d) disposed at each bleed port of the two or more bleed ports configured to move between an opened position and a closed position; and one or more sensors (76, 82) disposed along the bleed flowpath to sense one or more conditions of the bleed air cooling system; one or more turbine manifolds (68a, 68b) operably connected to the bleed duct (60a, 60b) configured to cool one or more components of a turbine section of the gas turbine engine; wherein the valve (74a, 74b, 74c, 74d) at a particular bleed port (58a, 58b, 58c, 58d) is moved to the opened position based on the sensed one or more conditions; and wherein a first valve at a first bleed port of the two or more bleed ports is mechanically connected to a second valve at a second bleed port of the two or more bleed ports, such that opening of the first valve forces closure of the second valve via the mechanical connection. one or more bleed flowpaths operably connected to a bleed outlet to divert a bleed airflow (66a, 66b) from a gas turbine engine flowpath, each bleed flowpath including: two or more bleed ports (58a, 58b, 58c, 58d) disposed at a separate axial location of the gas turbine engine to divert a bleed airflow from a gas turbine engine flowpath; a bleed duct (60a, 60b) in fluid communication with the bleed ports (58a, 58b, 58c, 58d) and configured to convey the bleed airflow from the two or more bleed ports to the bleed outlet; a valve (74a, 74b, 74c, 74d) disposed at each bleed port of the two or more bleed ports configured to move between an opened position and a closed position; and one or more sensors (76, 82) disposed along the bleed flowpath to sense one or more conditions of the bleed air cooling system; one or more turbine manifolds (68a, 68b) operably connected to the bleed duct (60a, 60b) configured to cool one or more components of a turbine section of the gas turbine engine; two or more bleed ports (58a, 58b, 58c, 58d) disposed at a separate axial location of the gas turbine engine to divert a bleed airflow from a gas turbine engine flowpath; a bleed duct (60a, 60b) in fluid communication with the bleed ports (58a, 58b, 58c, 58d) and configured to convey the bleed airflow from the two or more bleed ports to the bleed outlet; a valve (74a, 74b, 74c, 74d) disposed at each bleed port of the two or more bleed ports configured to move between an opened position and a closed position; and one or more sensors (76, 82) disposed along the bleed flowpath to sense one or more conditions of the bleed air cooling system; one or more turbine manifolds (68a, 68b) operably connected to the bleed duct (60a, 60b) configured to cool one or more components of a turbine section of the gas turbine engine; wherein the valve (74a, 74b, 74c, 74d) at a particular bleed port (58a, 58b, 58c, 58d) is moved to the opened position based on the sensed one or more conditions; and wherein a first valve at a first bleed port of the two or more bleed ports is mechanically connected to a second valve at a second bleed port of the two or more bleed ports, such that opening of the first valve forces closure of the second valve via the mechanical connection.