The purpose of bridge drainage systems is to prevent water from accumulating on or around the bridge, which could compromise the strength and stability of the bridge. They are designed to collect and divert water away from the bridge, ensuring that the structure remains safe and functional during and after heavy rain, storms, and flooding. Proper drainage systems can also prevent erosion, rusting, and other forms of damage that can occur when water is allowed to pool and penetrate into the bridge components.
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