Add Yahoo as a preferred source to see more of our stories on Google. Their name makes them seem perplexing, but in reality, baffle boxes have a very straightforward job: cleaning stormwater.

MELBOURNE AND WE SEE WHY IT COULD BE SO IMPORTANT. >> IT IS THE SIZE OF A TWO-STORY BUILDING, BUT UNDERGROUND. IT IS A STORMWATER CLEANER, A NITROGEN TRAP. IT IS CALLED A BAFFLE BOX. WORKERS LOWERED ...