---
title: "NSW: Changes to A-Double access on the NSW state road network and update to 35 metre Modular B Triple conditions, Hexham Bridge southbound"
description: Transport for NSW has updated A-Double access on key routes and conditions for higher productivity vehicles to enhance freight efficiency and support fuel security.
---

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# [NSW: Changes to A-Double access on the NSW state road network and update to 35 metre Modular B Triple conditions, Hexham Bridge southbound](https://www.qta.com.au/news/nsw-changes-to-a-double-access-on-the-nsw-state-road-network-and-update-to-35-metre-modular-b-triple-conditions-hexham-bridge-southbound)

 Written by [QTA](https://www.qta.com.au/news/author/qta) | 06 July, 2026

*Source: Transport for NSW*

As part of Transport for NSW’s efforts to keep goods moving across the state and help ease fuel pressure, we are continuing to investigate options to enable greater access for higher productivity vehicles.  

An update published Monday 6 July enables A-Double access on the NSW east coast corridor, from the Victorian border to the Queensland border via the:

- Sturt Highway
- Hume Highway
- M2/ M7 Motorway
- M1 Motorway
- Pacific Highway

Access has also been enabled on **Lachlan Valley Way **from the Hume Highway near Yass to Wongajong Road at Forbes. This will support freight productivity between the Central West and Sydney due to the Great Western Highway closure.

This temporary emergency access has been approved as part of the National Fuel Security Plan. Transport is working with the NHVR to develop and publish a separate Notice for access moving forward, however in the interest of time, an amendment has been made to the existing Type 1 A-double network map.

##### **Conditions for A-Double access**

Operators are strongly advised to review the updated National Network Map prior to travel to confirm any conditions that apply to specific road segments or structures.

Transport for NSW draws particular attention to the following access conditions:

##### **Conditions for access over B6298 – NB Sheahan Bridge**

When travelling northbound over B6298 the vehicle must:

- travel in the left lane only
- follow no closer than 60 metres from a heavy vehicle in front
- not brake or accelerate suddenly, except in an emergency or as part of an evasive manoeuvre

##### **Conditions for access over B1378 – SB Hexham Bridge **

When travelling southbound over B1378 the vehicle must:

- travel in left lane only

##### **Conditions for access over B243 – Mooney Mooney Bridge **

When travelling over B243 the vehicle must:

- travel in the middle lane only
- follow no closer than 60 metres from a heavy vehicle in front
- not brake or accelerate suddenly, except in an emergency or as part of an evasive manoeuvre

##### **Conditions of access, Lachlan Valley Way**

- no left turn from Hume Highway to Lachlan Valley Way

##### **Update to conditions of access for 35 metre Modular B Triples – southbound Hexham Bridge**

When travelling southbound over B1378 35 metre Modular B Triples must:

- travel in left lane only

There will be no changes to axle mass limits or gross combination mass limits for these higher productivity vehicles or existing heavy vehicles. Productivity improvements are achieved by enabling appropriate vehicle configurations to carry more freight per trip, rather than increasing vehicle weight.

We are continuing to investigate options to enable greater access for higher productivity vehicles and will provide more information on future changes as assessments are completed. Access for performance based standards (PBS) vehicles is also being assessed however will not be achievable at short notice.

During this fuel response, heavy vehicle safety and compliance will be critical. To ensure road safety and infrastructure protection outcomes are maintained, Transport for NSW will use network-based monitoring equipment and partner with the National Heavy Vehicle Regulator through on-road and off-road compliance activities.

 

[View full post](https://www.qta.com.au/news/nsw-changes-to-a-double-access-on-the-nsw-state-road-network-and-update-to-35-metre-modular-b-triple-conditions-hexham-bridge-southbound)

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