Answer:
1. Bechtel, Reston, Va - Heavy and Highway
2. Fluor Corp, Irving, Texas - Multiunit housing
3. Turner Corp, New York - Non Residential Building
Step-by-step explanation:
Engineering News Record (ENR) is the American magazine which is widely used by analysts and businessmen. This magazine is considered for its reliability and this is considered as most authoritative publication. It ranks the contractors in different categories. The rankings of the magazine may be different for the contractors every year.