Dive summary:

• The Greenroads Rating System encourages road and highway designers and builders to document and get credit for work that can be certified as sustainable.
• A relatively new organization, the Greenroads Foundation, administers the program. It issued its first certification this year.
• Jeralee Anderson, an engineer and executive director of the foundation, said that all projects certified so far have reduced costs as well as earned credits by going the sustainability route.

From the article:

If you are a contractor interested in working on roadway projects with sustainable certification, then the Greenroads Rating System is something you should consider. ...