Two stormwater discharge pipes from Airport Parkway and a nearby parking lot had caused severe erosion to the roadway bank. The erosion and resulting instability threatened to cause the highway to fail; resulting in major and expensive road repairs.
To prevent further erosion, a new discharge structure was constructed further down the bank, combining the two discharge pipes, and the discharge area was lined with stone. The damage was then reversed by filling in the eroded area and stabilizing it with grass and erosion control matting.
The repair of this discharge area ensured the stability of Airport Parkway and reduced the environmental impact of the stormwater runoff. In addition to stabilizing the roadway, the project greatly reduced the flow of sediment to a nearby pond, which ultimately leads to the Winooski River.
Best Management Practices
Installed Stone-Lined Swale
Repaired Stormwater Infrastructure
Stormwater Utility Fund
Vermont Better Back Roads Grant Program
Last Updated: 11/2009