Come explore the Providence sewers with me, and see if you'll be able to find your way out again. User mouses over hot-spots on screen. Hot-spots include utilities covers along the street. Water pipes are used to carry water into the city to your faucet, your shower, even the fire hydrant on the street. These are different from the sewer pipes that carry dirty water way from your toilets and drains.
Natural gas is one way of heating houses and stoves.
Gas comes from underneath the ground in Texas and the Gulf of Mexico and is sent through underground pipes to homes all over Providence. It powers lights, televisions, computers, refrigerators and more. These are the underground wires that carry phone conversations between your telephone and a friend's. Try looking on the other side of the street. Manholes are how workers get from the streets to the systems underground.