How much does an Asst. Professor - Civil Engineering make in New Mexico? The average Asst. Professor - Civil Engineering salary in New Mexico is $75,460 as of November 25, 2019, but the range typically falls between $63,249 and $94,651. Salary ranges can vary widely depending on the city and many other important factors, including education, certifications, additional skills, the number of years you have spent in your profession.