Our roads, highways and bridges can be a source of a significant amount of pollution to our nation's water.
Pollution is generated during road construction, maintenance, and use.
Nonpoint source pollution, or runoff pollution, is created when chemicals, debris, fertilizers, automotive oils, debris from wearing parts, and litter are washed off roadways and bridges during rainstorms and carried as runoff to streams, rivers, lakes and bays. There are many opportunities available to prevent and control runoff pollution by applying management measures and best management practices during the planning, construction, and operation and maintenance of highway systems. Management measures are achieved by applying best management practices appropriate to the source of runoff, climate, and average daily traffic volume. Planning considerations to help control runoff pollution from roads, highways, and bridges are discussed in this fact sheet. Road, Highway and Bridge Planning Poor planning can contribute to pollution problems.