What do you call the two-story concrete structure that shows river water levels during floods?

What do you call the two-story concrete structure that shows river water levels during floods?

• A. Dam
• B. Water Level Indicator
• C. Weir
• D. Basin

Answer: (B)

Measuring flood risk relies on having a clear readout of how high the river has risen. A water level indicator is built as a tall, concrete structure with marked graduations so people can see the current river height at a glance, even during heavy floods. The two-story height helps visibility when levels are high, and the scale translates the water height into a readable value for warnings and decisions. A dam is a barrier to store or redirect water, not a public height readout. A weir is a barrier that controls flow and can be used to estimate discharge, but it isn’t primarily a tall display of water height. A basin is just a storage area for water. So the best fit for a structure that shows river water levels during floods is a water level indicator.

Measuring flood risk relies on having a clear readout of how high the river has risen. A water level indicator is built as a tall, concrete structure with marked graduations so people can see the current river height at a glance, even during heavy floods. The two-story height helps visibility when levels are high, and the scale translates the water height into a readable value for warnings and decisions. A dam is a barrier to store or redirect water, not a public height readout. A weir is a barrier that controls flow and can be used to estimate discharge, but it isn’t primarily a tall display of water height. A basin is just a storage area for water. So the best fit for a structure that shows river water levels during floods is a water level indicator.