The American Society of Civil Engineers defines civil engineering as, "Civil engineering is the design and maintenance of public works such as roads, bridges, water and energy systems as well as public facilities like ports, railways and airports." Within the civil engineering field, there are specialties such as the 17 engineering specialties covered in the Federal Government's Standard Occupational Classification (SOC) system. Numerous other specialties are recognized by professional societies, and each of the major branches of engineering has numerous subdivisions. Civil engineering, for example, includes structural and transportation engineering, and materials engineering includes ceramic, metallurgical, and polymer engineering. Engineers also may specialize in one industry, such as motor vehicles, or in one type of technology, such as turbines or semiconductor materials. (Bureau of Labor Statistics).
Based on this information and as you stated in your question, as a structural engineer, the SB that you are referring to is a civil engineer. Without the benefit of the requiring language in the solicitation, AAP cannot give you specific guidance on how to evaluate the offeror other than to advise you to follow the specific evaluation criteria that is in the solicitation.
The above response is based solely on the question and background information provided. As we do not have all facts particular to your contract, program, and situation, we highly recommend you consult your legal office for additional guidance.