Ice bridge is sometimes used as a synonym for ice road.

An ice bridge is a frozen natural structure formed over seas, bays, rivers or lake surfaces. They facilitate migration of animals or people over a water body that was previously uncrossable by terrestrial animals, including humans. The most significant ice bridges are formed by glaciation, spanning distances of many miles over sometimes relatively deep water bodies.

Operation IceBridge is a 2009–2016 NASA mission that aims to monitor changes in polar ice from a fixed-wing aircraft. It is a temporary replacement for the ICESat satellite until ICESat-2 launch in 2017.