"Wisdom begins in wonder" – Socrates
High-Level Storm Sewers
05/14/26
“Why are some storm sewers placed higher than the main sewer systems?”
Storm sewers carry excess rainwater runoff off the surface. But some storms are too intense for normal storm sewer systems to handle. To compensate for this, local governments can build storm sewers that are located above normal storm sewers, so when the stormwater backup gets high enough, it will flow into these High-Level Storm Sewers.
Reservoir Sedimentation
05/13/26
“Why does sediment get trapped behind dams?”
Dams hold up reservoirs by impeding water flow. Sediment in this slower or still water will drop to the bottom of the reservoir bed and accumulate. Over time, the built-up sediment will impede reservoir effectiveness. Infrastructure managers need to address this Reservoir Sedimentation phenomenon in their operations.
Why Sandbars are Important for Naval Navigation
05/12/26
“Why are sandbars so important for navigation for naval navigation?”
Sandbars are a peculiar feature of bodies of water. But when it comes to ship navigation, their presence can drastically shape a ship’s journey. Because sandbars may rest just under the water, unsuspecting boats can steer into them and get trapped. Furthermore, sandbars may form the contours of navigation channels for ships. Sand bars also change over time, adding unpredictability to ship helmsmanship. On the flip side, sandbars can serve as natural harbors protecting ships from harsh elements. These are the reasons Why Sandbars are Important for Naval Navigation.
Sandbars
05/11/26
“How do submerged or partially exposed coarse sediment bodies form in water?”
Waves and currents can move and deposit sand, silt, and other coarse sedimentary material into long, narrow ridges that are submerged or partially exposed to the air. These shapes, called Sandbars, can defend shorelines from erosion and towns from storms by breaking wind/wave energy.
Channels (Geography)
05/10/26
“How do we describe narrow bodies of flowing water?”
Water will flow from one place to another because of a hydraulic potential difference. When the flow becomes narrow, it turns into a form people describe as a channel. Channels come in many forms, from simple streams to mighty sea-borne nautical channels.
Dam Removal
05/07/26
“Why do people remove dams?”
Dams are constructed to harness hydroelectric power, suppress floods, irrigate agriculture, store drinking water, and much more. However, dams will degrade over time, and their drawbacks may outweigh their benefits. Consequently, people will undertake Dam Removal projects. Dam removal can restore riverine ecosystems to their natural state.
Dredging
05/06/26
“Why do people excavate material from bodies of water?”
People have been shaping bodies of water for millenia. One way is to excavate material (usually solid) from a water body and move it somewhere else. This process, called Dredging, is used to improve navigation channel performance, remove sediment, and even create entirely new land somewhere else!
Navigation Channels
05/05/26
“Why is it important for ships to know where extra deep channels are on the sea floor?”
Ships need to move through bodies of water that are deep enough to hold them. Portions of the sea floor that are deeper than their surrounding areas, called Navigation Channels, are optimal routes to take. Often, government and port authorities will create navigation channels by dredging paths near their docks.
Negative Suction Head
05/04/26
“How can pump suction pressure be negative?”
Pumps create a pressure difference to move fluids. When a pump has to lift a fluid to a given height, it must do so against atmospheric pressure. Therefore, the pump inlet must be below atmospheric pressure, resulting in a Negative Suction Head. If the head is too negative, then it can lead to cavitation and harm the pump.
Isaac's Science Blog 