Design

An interchange between two high-speed routes where two of the cloverleaf ramps are replaced with directional ramps, generally in a stacked orientation.

A cloverleaf interchange provides unrestricted movements between a freeway and another high-capacity roadway (including another freeway or an expressway). There are eight ramps total in this configuration. In addition to an outside diamond configuration, the cloverleaf interchange also features internal loop ramps so that traffic signals and stop signs are not required. The cloverleaf interchange is so named because the internal connecting ramps look like a four-leaf clover from above. [...]

A cantilever bridge is a span supported by a beam that is anchored at one end and unsupported at the other end. This kind of bridge is not commonly constructed today. An example is the eastbound Interstate 80 Carquinez Bridge near Vallejo, California.

A cable-stayed bridge features cables that connect directly to the mast, pillar or tower. By comparison, individual suspension bridge cables connect to vertical hangers, and the hangers in turn connect to the tower, mast, or pillar. Examples include the Delaware 1 / William Roth Bridge over the Chesapeake and Delaware Canal and the Interstate 275 / Sunshine Skyway Bridge over Tampa Bay.

An arch bridge is a bridge supported by a concrete or steel arch underneath the bridge that directs pressure and weight of the bridge outward to the supports along the arch.