American Association of State Highway and Transportation Officials (AASHTO)

City/State Stormwater Drainage Project Honored
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City/State Stormwater Drainage Project Honored

Replacing curb and gutter with pipe that’s strong enough to carry a train... More

Form Follows Function
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Water- or solvent-borne silane?

When introduced in the 1970s, penetrating sealer formulations were 100% silane. Silanes in and of themselves are not a volatile organic compound (VOC), but they contain VOCs. For example, a 100% silane formulation contains about 350 grams/liter. More

Concrete protection and preservation using penetrating sealers
Transportation's stormwater challenge
Monitoring road clearing effectiveness
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Monitoring road clearing effectiveness

DOTs across North America want to copy Idaho's award-winning system for measuring... More

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Calculate proper pavement thickness with free online tool

PaveXpress recalibrates AASHTO design guidelines so engineers don’t specify asphalt pavement that’s thicker than it needs to be. More

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FREE asphalt pavement design tool

AASHTO guidelines are simplified so roadways and parking lots can be scoped using basic design parameters and traffic data. More

2014 Triad Award Winner: The Stan Musial Veterans Memorial Bridge
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2014 Triad Award Winner: The Stan Musial Veterans Memorial Bridge

Two state DOTs refine the art of collaboration to design better (and less... More

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AASHTO Board elects new president and VP

The American Association of State Highway and Transportation Officials Board of Directors voted to elect Rhode Island Transportation Director Michael Lewis as the association's president for the next year. More

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