Which ancient civilization is associated with grid-pattern streets and advanced drainage systems?

• A. Ancient Egypt
• B. Indus Valley
• C. Mesopotamia
• D. Shang China

Answer: (B)

The main idea here is how early cities were laid out and how they handled sanitation. The Indus Valley cities, like Harappa and Mohenjo-daro, were planned with a deliberate grid of straight streets intersecting at right angles. This orderly layout isn’t just architectural flair—it reflects a centralized approach to urban design. Along with the streets ran a sophisticated drainage network: drains lined the streets and connected to houses, carrying waste away from living areas and into curbside or central sewage channels. This combination of a regular, grid-like street pattern and engineered drainage is a hallmark of Indus Valley urban planning.

Other ancient societies did impressive things, but their town layouts and sanitation systems don’t match these features as clearly. Egypt’s settlements grew around the Nile and are famous for monumental monumental structures, rather than a grid street system with citywide drains. Mesopotamia had impressive canals and some drainage practices, but their streets were not laid out in a uniform grid. Shang China is known for its bronze work and royal centers, not for grid-patterned streets and advanced municipal drainage.

So, the civilization most closely associated with grid-pattern streets and advanced drainage systems is the Indus Valley civilization.