When putting together your business case, there are technical requirements that may be relevant to your project that will need to be considered and included.
To ensure you are completing all steps correctly when you are building your business case, follow the tables below.
You will notice that more is required as you get deeper into the business case process. Not all of these steps are relevant for all business cases but it will give you a good overview of what you may need to consider.
This table outlines what these requirements are and where you can go to find the relevant information.
| Business case phase | Technical requirements | Information |
| Detailed business case | Preliminary structure options report(s), developed to identify alternative options for bridges and other highway structures (category 1 and 2 structures only), to be included within the Preliminary design philosophy statement |
Highway structures design guide appendix A Model document in annex A1 |
| Pre-implementation | Structure options report(s) developed to identify recommended options for bridges and other highway structures (category 1, 2 and 3) at commencement of design phase |
Highway structures design guide appendix A Model document in annex A1 |
| Structure design statement(s) developed providing full details of proposed bridges and other highway structures (category 1, 2 and 3) prior to commencement of detailed design. To be compiled in conjunction with the Design philosophy statement and updated where necessary for inclusion in the Final design report |
Highway structures design guide appendix A Model document in annex A1 |
|
| Design of bridges and other highway structures | ||
| Design certificate(s) for bridges and other highway structures (category 1, 2, 3 and 4 and uncategorised structures) and Design review certificate(s) for bridges and other highway structures (category 1, 2, 3, and 4 structures) |
Highway structures design guide appendix A Model document in annex A2 |
|
| Building consent (where required for category 1, 2, 3 and 4 structures) | Highway structures design guide appendix A | |
| Data for proposed bridge(s) recorded by completing structural and descriptive Bridge data system BDS input forms | OPermit bridge structural data guide | |
| Implementation | Construction review certificate(s) for bridges and other highway structures (category 1, 2, 3 and 4 and uncategorised structures) |
Highway structures design guide appendix A Model document in annex A2 |
| Updates to bridge data recorded by completing structural and descriptive Bridge data system BDS input forms | OPermit bridge structural data guide |
| Business case phase | Technical requirements | Information |
| Detailed business case | Preliminary geotechnical appraisal report | SM030 |
| Geotechnical testing and assessment undertaken with results presented in a Geotechnical assessment report (factual report) and interpreted in a Geotechnical interpretative report | SM030 | |
| Assumed design parameters for subgrade strength and fill and cut batter slopes presented in Preliminary design philosophy statement | SM030 | |
| Pre-implementation | Geotechnical testing and assessment undertaken with results presented in a Geotechnical assessment report (factual report) and interpreted in a Geotechnical interpretative report | SM030 |
| Design parameters for subgrade strength and fill and cut batter slopes presented in Design philosophy statement | SM030 | |
| Design of earth slopes | Bridge manual | |
| Earthworks design detailed in Final design report | SM030 | |
| Design certificate(s) and Design review certificate(s) for earth slopes |
Highway structures design guide appendix A Model document in annex A2 |
|
| Implementation | Construction review certificate(s) for earth slopes |
Highway structures design guide appendix A Model document in annex A2 |
For further information contact bridgemanual@nzta.govt.nz.
