Cost to lay down quieter pavement on southbound I-5 in Lynnwood (summer 2006)
- Standard (hot mix) asphalt – $58,900 per lane mile
- Polymer-modified quieter asphalt – $81,600 per lane mile
- Rubberized quieter asphalt – $93,200 per lane mile
- Quieter concrete (texturizing existing concrete) – $100,000 per lane mile
- Quieter concrete (texturizing and installing new concrete) – $2 million per lane mile
It will be interesting to see how it holds up over time. A few days after you could drive on it there was a slight rain. My first thought was "I need to test this" and making sure I was not being tailgated I pumped my brakes to see how the stopping power was. I found no difference between stopping on it versus other pavement. No sliding or anything like that.
I should note that when they paved 520 they also replaced the center barrier which had years of bumper stickers applied to it. Many were local beers and other meant things that only Microsoft employees could apprechiate like "MDAC" in the standard European country sticker in the shape of a white oval with black text. It did not take long however to have new stickers appear on the new barrier. So far I have not seen very many fun ones but it is still early in the age of the new barriers.