POTD - Steam Alley
Another photo from work - a road way between two process buildings, with steam pouring out of a trench. The steam leak is not normal - it will be fixed tomorrow when the process is shut down for 12 hours.
The colors on the pipes designate the contents inside - nitrogen, hydrogen or natural gas, for example. That streaky brown color? That would be rust (something we don't like to see and needs to be fixed, too - always something to fix at work!).