# Bridge Geometry \[CUG] OpenBrIM provides different workflows for each type of bridge. All objects are pre-defined and parametric, allowing users to create a model by defining several parameters. Due to the nature of parametric modeling, the requirements for defining parameters may vary. Definitions can be made using numbers, other parameters, or by choosing from the provided options. To obtain the desired model, a specific sequence must be followed, known as the workflow. The common starting point for all workflows is Bridge Geometry. For further explanations of each OpenBrIM object, please refer to the relevant section of the documentation. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.openbrim.org/templates/concrete-u-girder-bridge-workflow/bridge-geometry-cug.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.