Category: Structural Design

What Is Riprap? And Why It Rocks!

What is Riprap? Riprap describes a range of rocky material placed along shorelines, bridge foundations, steep slopes, and other shoreline structures to protect from scour and erosion. Rocks used range from 4 inches to over 2 feet. The size of the rock needed on a project depends on the steepness of the slope and how… Read More »

A Crash Course for Load Ratings and Bridge Posting Signs

By David Johnson, PE Have You Ever Wondered What Those Weight Signs Posted at the Ends of a Bridge Mean? These weight posting signs display the maximum safe weight for a vehicle. Since there are a number of different vehicle sizes and shapes on the roads today, different types of vehicles called “Legal Loads” are… Read More »

Innovative Engineering Expands the Role of Infrastructure

By Dan Sydow, PE Sustainability thought leaders around the world are changing the way we perceive infrastructure – the service mechanisms and underlying hardware that serve our communities every day. These systems supply clean water, power up our homes and businesses, enable safe travel, remove waste, facilitate communication, connect us to the internet, and much… Read More »