San Francisco Sewer Work’s Obstacle Course
From the San Francisco Chronicle:
“In a city with nearly 1,000 miles of sewer lines, the majority of which were built before 1970, the [San Francisco Public Utilities Commission] PUC is in a race to replace much of the city’s underground infrastructure before a catastrophic failure, while at the same time navigating a subterranean jungle of buried relics from San Francisco’s past.”
Read more from the San Francisco Chronicle