Photo by ENR/Tom Sawyer The City Hall renovation in New York City includes a fuel cell near the building that will be generating most of the its daily load of electricity. Tricky tunneling work paved the way for the box, which has also attracted controversy. Photo by Tom Sawyer/ENR A trench helps bring in upgraded ConEd electrical feeds before it turns about 30 for a 200-ft run to City Hall, which was part of construction management firm Hill International's plan to build new power lines while working around the archaeological hotspots in lower Manhattan. Related Links: Fuel Cells Finding Their
The 2016 Summer Olympics boating and swimming events have put an international spotlight on what has been a long-running problem in Rio de Janeiro—untreated sewage and trash are clogging up major bays and waterways.