Section 137, The Road Traffic Act, 2007

(1) The person responsible for the maintenance of anybridge may cause to be placed in a conspicuous place on or near such bridge a notice to the effect that– (a) the bridge is insufficient to carry more than a certain weight or axle weight; (b) a vehicle exceeding a certain breadth or height cannot with safety be driven on or over such bridge; (c) a vehicle may not exceed a specified speed when crossing the bridge, and thereafter any person who contravenes or fails to comply with the terms of such notice commits an offence. (2) For the purposes of this section and section 138– (a) weight means weight laden; (b) the weight transmitted by a vehicle to any transverse strip of the road surface five feet in breadth shall be taken as being an “axle weight” of that vehicle and, for the purposes of this paragraph, a vehicle and any trailer drawn thereby shall be deemed to be a single vehicle.