Installed under the bridge’s southern approach, four coal - fired boilers, which generated steam at a pressure of between 75 and 80 pounds per square inch [5 - 6 kg / ​ cm], drove two massive pumps.
ये बॉयलर 5 से 6 किलोग्राम प्रति वर्ग सेंटीमीटर के दाब में भाप पैदा करते थे ।