If you do not qualify for the Educational license and cannot afford the subscription, you might consider open-source alternatives. While none match the BIM capabilities of Civil 3D, they can handle basic drafting and site design:
Autodesk Civil 3D is the industry standard for civil engineering design, yet its professional price tag—often exceeding —can be a significant barrier. Fortunately, there are several legitimate ways to access Civil 3D for free , ranging from short-term trials to long-term educational licenses. 1. The 30-Day Free Trial (For Everyone)