Which term describes pre manufactured sections of concrete railing that are installed on a bridge?

• A. Concrete Balustrade
• B. Precast concrete railings
• C. Concrete Bridge Railing
• D. Concrete Parapets

Answer: (B)

Precast concrete railings are sections manufactured offsite in a controlled plant, cast into standardized shapes and dimensions, then transported to the bridge site and installed as units. This manufacturing method is the defining feature described by the term in the question. Using precast sections offers tight quality control, consistent geometry, faster erection, and less on-site formwork and curing time compared to pouring the railing in place.

Other terms describe the railing's style or location (for example, balustrade or parapet) or refer to railing in a general sense, but they don’t inherently convey that the elements are produced offsite as prefabricated units.