Triangle Construction Stormwater Outfall, Dora, Alabama | United States

Triangle Construction is a stormwater outfall located at 571 Crest Road in Dora, Alabama, within Walker County. As a stormwater outfall, it discharges runoff from construction sites, which is regulated under the US EPA NPDES MS4 permit program to control pollution in urban and industrial areas. In the United States, stormwater outfalls like Triangle Construction must comply with the Clean Water Act, which requires permits for discharges to surface waters. The facility operates under Alabama's NPDES program, which oversees stormwater management to protect water quality. Typical controls include sediment basins, erosion controls, and best management practices (BMPs) to reduce pollutants. The environmental significance of Triangle Construction lies in its role in managing stormwater runoff from construction activities, which can carry sediment, chemicals, and debris. Proper operation helps prevent degradation of local waterways, such as those in the Black Warrior River watershed, supporting community water quality and ecosystem health.

Dora, Alabama, is located in the Black Warrior River watershed, a region with significant coal mining and industrial history. Stormwater runoff from construction sites can introduce sediment and pollutants into local streams, impacting aquatic habitats. The area's clay soils and hilly terrain increase erosion risk, making stormwater management critical for protecting downstream water quality and biodiversity.