A combined sewer carries both domestic sewage and stormwater.
They were originally built in the 19th century to carry rainwater and sewage from the city past marshland northward into the lake.
In some areas of Syracuse there are sewers that carry both sanitary sewage and stormwater.
Unlike previous SimCity games, roads carry water, power, and sewage.
Ultimately, engineers reversed the direction of the river's flow, thus carrying sewage away from the lake.
One narrow pipe carries both street and raw sewage.
Floodwaters have flowed into the openings and carried raw sewage back out.
Although once clean, it now carries sewage.
In clear view were the pipes, tubes and ducts that carry water, gas, sewage and steam.
The three main lines that carry sewage out will be choked in 10 years, sanitation experts say.