Stormwater / Culvert Pipes / Drainage

Erosion control stormwater management Drainage

Erosion Control

Erosion control is the practice of controlling the wind or water in order to prevent sediment from being carried away and deposited in another location. Erosion is a natural occurrence, but construction has helped speed this process up. Erosion occurs when the erosive force such as wind or water (with much help from gravity), exceeds the soil's ability to resist the erosive force. Sometimes erosion control is referred to as sediment control. Erosion control measures such as grading, retaining walls, and drains stop soil from "eroding" away. Cities and local governments control erosion with stormwater systems, but is also found in residential properties as well.

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StormWater systems

Stormwater is rainwater that doesn't soak into the ground as it flows across impervious surfaces (impenetrable coated) such as roads, driveways, etc. Stormwater management is the redirection of storm water off of streets, lawns, driveways, and other sites by drainage structures such as culvert pies, box drains, catch basins, etc. Storm water drains such as culvert pipes, allow water to flow under structures such as a road, driveway, and other obstructions to the waterflow. Storm drain systems use drainage structures to also prevent pollution, erosion, and flooding. Stormwater drains are different from sewage drains because they do not carry water to any sewer system.

Culvert Pipes

Circular arch culvert pipes are the most common of these drains. These culvert pipes can be made of metal, roller compacted concrete (reinforced concrete), and other materials.

There are also box culvert pipes. These are most commonly used under large roads and railways. When looking at box culverts, they look like regular bridges when driving over them.