About InfraDigital CAD
InfraDigital CAD helps highway designers, technicians and students check calculations, review quantities and prepare engineering files for further review.
What the tools cover
The site covers alignment and section geometry, drainage screening, pavement traffic, earthwork, survey files and construction records. Each tool defines the inputs it supports and the decisions that require separate project review. For example, a full-barrel flow screen can help compare culvert sizes. Headwater and outlet performance require a separate hydraulic assessment.
Development and sources
Yonatan Abrham develops InfraDigital CAD. See his LinkedIn profile and ORCID record. The tool notes identify the applicable manual and edition where a published criterion is used. They also distinguish standards values, geometric derivations and worked-example assumptions.
We publish worked examples so readers can reproduce a result. When we confirm an error, we correct the affected material and record significant changes. Read the methodology and change history and the editorial and corrections policy.
Report a calculation or source issue
Send the page URL, inputs and units, observed and expected results, and the relevant source edition and page. A small synthetic example helps reproduce the issue without sharing project data. Contact InfraDigital CAD.