The F-shape barrier is a concrete crash barrier, originally designed to divide lanes of traffic on a highway. It is a modification of the widely used Jersey barrier design, and is generally considered safer. The result showed that the one labeled F performed better than even the shape of the Jersey barrier.

Jersey barrier
Jersey barrier is the common name given to highway concrete barriers that are used for traffic control and perimeter protection. Superficially, the concrete Jersey barriers appear to be simple.

These barriers are used to protect utilities and materials. Concrete barriers can effectively block sensitive wiring and underground materials from being hit by heavy machinery and forms on the job site. They can also be used to deter traffic, separate materials, and prevent erosion in certain areas.

4,000 lbs.
Barrier sections are constructed from reinforced concrete, normally in 10 ft. lengths and weighing 4,000 lbs. or more. They are usually available from precast concrete manu- facturers, highway departments or highway contractors.

How much does a 12 mesh barrier weight cost? Approximately 600 pounds per foot equivalent: Jersey Barrier is very heavy, around 600kg.

approximately 4,000 lbs.
The most common concrete jersey barricade size used is: 10 ft Long x 24 in Wide x 32 in High and weigh approximately 4,000 lbs.

The F-Shape Level 3 (FSL3) precast concrete barrier is a new generation safety shape and intended to limit vehicle damage for dividing lanes of traffic during highway construction. It is an excellent choice for most applications when you need to redirect vehicles during moderate to severe impact conditions.

The basic principles of concrete barriers are not generally known or understood. Concrete barriers appear to be simple and uncomplicated, but in reality, they are sophisticated safety devices. When most people think of concrete barriers, they think of the New Jersey Concrete Safety Shape Barrier (NJ-shape or Jersey barriers).

The F-Shape has been found to be more effective overall than the Jersey Shape barrier in some instances. The F-Shape is more commonly used for permanent concrete barriers.

Preferably, concrete safety shape barriers should be adjacent to a paved surface so that the wheels cannot dig into the soil and cause the vehicle to overturn. Years ago, it was common practice to form a 255-millimeter (10-inch) radius at the intersection of the two sloping surfaces to facilitate slipforming the barrier.