Quick Answers: Road Construction

How do I calculate the percentage of asphalt in a mix?

What are some Best Practices that should be considered when applying a Tack Coat?

Why should I use Tack Coat and is it worth the extra cost?

Is it better to place cobbles or sand directly on an weak subgrade?

2013

Where can I find specifications for installing plastic culvert pipe (HDPE)?

What should I do if there is a mud slide affecting my highway?

Is it necessary to reclaim by grinding a very poor surface before placing a new gravel base or surface?

2012

What is Cold-in-place recycling and what are its advantages?

Which Tack Coat material should I use for an asphalt overlay?

Are there any requirements for how many and how bright yellow (amber) flashing lights are to be on work trucks?

2011

What is the “Safety Edge” and why should we use it?

Are there new sizes for work zone signs?

We are looking to reduce costs for some culvert replacement this spring, where can we find some savings with material(s)? Is it OK to backfill culverts with the same material we dug out from around the old pipe?

What traffic control is required in a nightime work zone?

2010

What can I use to clean paving equipment other than diesel fuel?

How late into the Fall can I do paving, and how early can I start in the Spring?

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