Prefab Accelerated Bridge: ABC Technique Proves to be as Easy as 1-2-3

Modular, prefabricated bridge designs have proven to be a critical component of accelerated bridge construction (ABC). The FHWA favors the ABC bridge construction technique especially in the design of highway bridges that feature varied spans, skew angles and construction materials. Prefab’s contributions to the ABC process has earned it a place at the state and city transportation levels, as well.

Research has shown that ABC techniques expedite construction of bridges through shortened project duration, lower material costs, less personnel and increased safety on the job site. Technology such as Geosynthetic Reinforced Soil-Integrated Bridge Systems (GRS-IBS), Slide-In Bridge Construction (SIBC) and Prefabricated Bridge Elements and Systems (PBES) are major components of these ramped-up techniques.

High-performance materials used in prefabrication of bridge elements enhances the entire construction operation. Their integration is expected to significantly improve the condition of the United States bridge network, increase the life-span of bridges and minimize the need for maintenance and repair, according to FHWA research.