Published: May 2013
Structures (bridges & culverts)
Road traffic engineers & consultants,
This Bridge manual sets out the criteria for the design and evaluation of bridges, culverts, stock underpasses and subways, the design of earthworks and retaining structures. The manual is a companion document to the overarching Highway structures design guide which provides general and specific design criteria for all highway structures.
The manual has been developed by the NZ Transport Agency for use on state highways or for the design of other new or replacement bridges proposed for funding from the National Land Transport Fund (NLTF). Use of the manual on other highways, including private highways, may be considered appropriate with the agreement of the relevant road controlling authority, client or landowner. Structures technology is an area of ongoing research and refinement and the manual is reviewed from time to time to incorporate important corrections and amendments.