Structural Bridge Design is available through the Architecture, Engineering, and Construction Collection. The price of the Architecture, Engineering, and Construction Collection subscription is  monthly, annually, or for 3 years. Please visit www.autodesk/collections/architecture-engineering-construction/overview to learn more about the Architecture, Engineering, and Construction Collection. If some of your users only occasionally use Structural Bridge Design, consider buying tokens to access it for 24 hours at a time. Visit www.autodesk.com/flex to learn more.