15.3.4.1
CONSTRUCTION_TYPE = 3 – Special Construction Needs should be present in the NSG to indicate that the Street has special construction needs on the Street.
15.3.4.2
This is a discretionary code and is used by the Local Highway Authority to identify areas where the Street is subject to special construction methods or where they were used, for example:
- Geosynthetic Materials.
- Geotextile Materials.
- Reinforcement Grids.
- Sulphate Resistant Concrete.
- Air Entrained Concrete.
- HD26 Design Standard.
- High Sulphate Areas.
15.3.4.3
If CONSTRUCTION_TYPE = 3 is present, text in the CONSTRUCTION_DESCRIPTION Field must also be present in the NSG to identify the nature of the special construction.
15.3.4.4
Special construction information must not be present in the NSG for Streets that are maintained by the Regional/National Highway Authority.
15.3.4.5
Special construction needs can be present in the NSG for Private Streets where a request has been received from the Private Street Manager. The SWA_ORG_REF_CONSULTANT and the DISTRICT_REF_CONSULTANT should also be present.