Weight Limits And Abnormal Loads
Abnormal loads
Since February 2001 standard vehicles with gross loaded weight up to 44 tonnes have been allowed to travel freely on the roads. Loads are classed as 'abnormal' when a non-standard vehicle is used to transport loads above 44 tonnes or loads with dimensions which are excessively high, wide or long.
Obligations of the haulier
Before a haulier can move an abnormal load they must notify and gain consent from the:
- County/Borough Council
- Local Highway Authority
- Police
In addition, the haulier must have provided an annual Order of Indemnity to the relevant Council, Highway Authority and all other bridge owners (e.g. Network Rail) along the proposed route. This is required by the Department for Transport.
Choosing the route for an abnormal load
Once a notification has been received the Abnormal Loads Officer checks and agrees the proposed route. The Officer takes into account strength and height/width clearance of bridges along with any other physical constraints. Many abnormal loads require a Police escort and are moved at night or at weekends to minimise disruption.
An abnormal load can potentially go on any road providing the Haulier complies with the law. Some roads are more suitable and more extensively used, usually Class A roads or a Highway Authority Designated Route.
Providing notice of the abnormal load
Before transporting an abnormal load the law requires the Haulier to give a minimum of two days notice to the Highway Authority, Bridge Owners and the Police.
The notice period is different for loads over 150 tonnes, 6.1 metres in width or 27.4 metres long.
Hauliers who need to move abnormal loads can obtain more information about regulations and notification from the Department for Transport 
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