While many road authorities in North America are finding it difficult to stretch their bridge assets beyond half a century, one bridge is closing in on its centenary - David Arminas reports
The international Peace Bridge, connecting the Canadian province of Ontario with the US state of New York, is 88 years young this year, and still going strong.
An overpass demolition job in the US state of Washington caused problems when a chunk of the roadway fell the wrong way. Luckily no-one was hurt when the chunk of reinforced concrete dropped but it caused serious damage to water lines and other utilities that will now have to be repaired. The project forms part of a series of upgrades to the key SR16 highway link.
Pneumatic concrete dowel drills have one purpose – to drill holes. While their intended use is easy to recognize, operation of this equipment isn’t quite so simple. In fact, it’s a bit of a science. That’s not to say they’re difficult to operate. But there are certain best practices and processes to keep in mind for proper drill operation, whether it’s an on-grade, slab-rider or equipment-mounted model. Operators who adopt these guidelines and implement them on every job are rewarded with better performance
