A Bremer wall, or T-wall, is a twelve-foot-tall (3.66 m) portable, steel-reinforced concrete blast wall of the type used for blast protection throughout Iraq and Afghanistan.
A short T-wall painted with various military signs is seen at Camp Liberty, Iraq
Damage to Bremer wall concrete barriers in Afghanistan, 2012
Image: A T wall painted with a Cadini Club is seen at Camp Liberty, Iraq, July 7, 2011 110707 A HR697 259
A Jersey barrier, Jersey wall, or Jersey bump is a modular concrete or plastic barrier employed to separate lanes of traffic. It is designed to minimize vehicle damage in cases of incidental contact while still preventing vehicle crossovers resulting in a likely head-on collision. Jersey barriers are also used to reroute traffic and protect pedestrians and workers during highway construction. They are named after the U.S. state of New Jersey which first started using the barriers as separators between lanes of a highway in the 1950s.
Jersey barriers on the road
Soldiers taking cover from enemy fire behind Jersey barriers in Baghdad, Iraq, 2007
Plastic Jersey barriers (Hong Kong, 2008)