Structural engineer to review and adjust calculation design for culvert

I am looking for a structural engineer to review and adjust the calculation design for a culvert.

Purpose of the culvert:
- To facilitate the flow of water

Project requirements:
- Review and adjust calculation culvert Structural design to be approved by the royal commission

Existing design and specifications:
- I have the design and specifications

Timeline:
- Project completion within 1 day

Ideal skills and experience:
- Structural engineering expertise
- Experience with culvert design and calculations
- Familiarity with royal commission design requirements