The Stormwater Utility was created to address water quality in the City of Roanoke. The city is mandated via federal and state agencies to control and eliminate stormwater pollution.
Like many rivers across the country, the health of the Roanoke River is impaired from pollution. Stormwater runoff contributes to this pollution from normal activities taking place around the city. Everyday activities such as walking the dog, fertilizing the lawn, driving cars and exposing bare soil can generate pollution. These pollutants wash into the stormdrain system and flow untreated into the nearest creek, ultimately reaching the Roanoke River.
The resulting pollution reduces our community's ability to use our waterways for swimming, fishing, and drinking, and it adversely impacts wildlife populations. These problems create negative impacts on our community by reducing livability, suppressing the local economy, and increasing the cost of using our water as a natural resource. It is our goal to work together with citizens to improve the City of Roanoke's waterways so that they can be community assets for many years to come.
There are 7,593 stormdrain inlets in the City of Roanoke.
The Roanoke River ends in the Albemarle Sound in North Carolina, not in the Chesapeake Bay.
9.7 miles of the Roanoke River (410 miles total) runs through the City of Roanoke.
There are 711 stormdrain outfalls across the City of Roanoke that empty runoff directly into local streams.
A 1,600 sq ft roof sheds almost 1,000 gallons of runoff during a 1" rain event.
The runoff from 1 acre of paved parking generates the same amount of annual runoff as 36 acres of forest or 20 acres of grassland.
Last year, streetsweeping removed 2116 tons of sediment and debris from streets in the City of Roanoke.
A single deciduous tree can intercept from 500 to 760 gallons of rainfall per year; and a mature evergreen can intercept more than 4,000 gallons per year.