The Des Plaines River Bridge is 2.1 km long. Engineers are considering re-lighting the bridge with a pole placed every 120 feet of the bridge length starting from the south end. Each pole will support four light globes. How many globes will be required for the re-lighting project?.
The amount of globes needed/required for the re-lightning project of the Des Plaines River Bridge is approximately 228. The equation for the answer is 2.1 km * 1mi/1.60934km * 5280 ft/mi = 6889.781ft /120ft = 57.41 poles,57*4 = 228 bulbs.
