The NZ Transport Agency is taking seriously Rozendaal Heavy Haulage's concerns about the State Highway 1 overbridge near Hikurangi and will remeasure its height.
Tony Rozendaal said his own measurement of the height was about 75mm shorter than the 4.85m stated on the bridge. One of the company's trucks carrying a large digger caused a hold-up there on Tuesday when the experienced driver decided not to try going under the bridge, instead backing up for about 200m to take a detour through Hikurangi.
Although it turned out in that case the driver had undermeasured the height of the digger's cab by about 10cm, vehicles with loads up to 4.85m that had been able to go under the bridge in recent years now no longer could, Mr Rozendaal said.
Acting Regional Highways Manager Steve Mutton said the stretch of highway was upgraded in 2010 and NZTA would remeasure the bridge clearance. He said the policy was that the clearance displayed on a sign was to the nearest centimetre, and there was no "tolerance". "Drivers and operators have a responsibility before they start their journeys to check their loads to ensure they do not exceed height and weight limits, and they have the necessary permits if required."