Joe Hummer, a professor in the N.C. State University Department of Civil Engineering, scoffed the first time he saw the “quadrant roadway” design on paper. At the time, nearly a decade ago, that paper ...

MnDOT's new proposal calls for a quadrant interchange, which is a cheaper, less extensive version of the full diamond interchange preferred by Goodhue County. However, it would still build a bridge ...

CLAY COUNTY, Fla. — It’s a plan that could give drivers at one of the county’s busiest crossroads a shortcut. It’s called a quadrant intersection, and it could solve an intersection problem that’s ...

A proposed quadrant intersection for U.S. 52 and Goodhue County Road 9 is currently projected to cost between $8 million and $9 million, a savings of up to $6 million over a diamond interchange.