Procurement News Notice |
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| PNN | 4178 |
| Work Detail | Early last week, there was concern among frequent drivers of state Route 502 through Battle Ground, after they noticed road work beginning again from around NE 22th Ave. to NE 58th Ave. This stretch of highway, and that area in general, has seen immense changes recently with an $84.4 million project and drivers were curious to know why construction had re-ensued on what they thought was a completed project. The Washington State Department of Transportation (WSDOT) explained that this new construction project was only a small improvement to that portion of the road. After the completion of a recent pavement project, both eastbound lanes had one-foot wide sections where the finishing layer had been scraped up. They expressed that the pavement was not satisfactory and the responsible contractors agreed. Because the contractors assumed responsibility for the slight imperfection, last week’s project came at no cost to the county, i.e., the taxpayers. The problem that has since been remedied, was fixed by what WSDOT called a “full-width chip seal.” This form of pavement preservation extends the road’s lifetime 3-5 years by preventing both the asphalt oil from oxidizing out, and direct access from the sun. To create a chip seal, emulsified asphalt is laid on the existing road, followed by a layer of rock, then a final layer of emulsified asphalt. The first layer of emulsified asphalt bonds to the road, the layer of rock creates good friction and the final layer of emulsified asphalt helps hold the new layer of rock in place. “This was a solution that is acceptable to WSDOT, and also provides benefit to the users because we’ll actually get some extra life out of the chip seal,” said WSDOT Communication Manager Bart Treece. Over the next few weeks roadwork projects through this area of highway will primarily be grass seeding along the shoulder. |
| Country | United States , Northern America |
| Industry | Construction |
| Entry Date | 03 Sep 2016 |
| Source | http://www.thereflector.com/news/article_615f3c32-6ede-11e6-af81-3be1e7c21d3d.html |
