Concrete road barriers are crucial for vehicle safety, preventing accidents by keeping vehicles within their lanes or away from hazardous areas. These barriers must effectively stop vehicles from crossing into oncoming traffic or off-road areas, particularly after a loss of control. Understanding how barriers perform under various vehicular impacts, influenced by factors like vehicle type and impact angle, is vital. Traditionally, these barriers are steel-reinforced, offering proven strength but suffering from corrosion-related degradation. An alternative, such as Glass Fiber Reinforced Polymer (GFRP), offers high strength without the drawback of corrosion, suggesting a significant improvement in barrier longevity and performance. In part 1 of this work, a concrete barrier that is reinforced with glass fiber reinforced polymer (GFRP) materials is designed based on the Missouri Department of Transportation (MoDOT) Type D concrete barriers with steel bar reinforcements with adjustments to meet the properties of GFRP. Based on this design, the strength as well as the behavior of GFRP reinforced concrete barrier under different types of loadings is then explored and modeled using commercial software ABAQUS and LS-Dyna. Upon completion of part 1 design and numerical studies, part 2 studies involve the fabrication and laboratory testing of four bridge barriers. Three are constructed with GFRP while one is constructed with mild steel representing current barrier detailing to serve as a comparative test. These barriers were tested under impact using a sled-style impact testing ramp at Missouri S&T. Results from physical testing show that these GFRP reinforced barriers perform at an equivalent level to barriers reinforced with mild steel.