What Exactly Is a Precast Underground Vault? A precast vault is a large, reinforced-concrete box or cylinder installed below grade to detain, treat, or both detain and treat stormwater when surface land is scarce. The modules are factory-made for quality control, then craned into an excavated pit an…
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What is a stormwater outfall? A stormwater outfall is the point where a storm-drain system, whether pipes, ditches, or channels, discharges runoff to a receiving water such as a stream, wetland, lake, or the ocean. Regulatory guidance clarifies that simple cross-road culverts, which only pass flow b…
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