Author: ayres

2D Modeling and Matrix Riprap Save Millions on Transportation Flood Recovery Projects

By Will DeRosset, PE, CFM, and Anthony Alvarado, PE, CFM The Colorado Department of Transportation recently published several case studies celebrating major progress in effective design in flood recovery projects. The projects all relate to designs implemented in the recovery from devastating 2013 flooding. The key takeaways are: 2D hydraulic modeling and spatially explicit analysis… Read More »

Can Mapping Save Lakes from Perils of Soil Erosion?

By Zachary Nienow, GISP Culvert mapping and culvert asset management have been hot topics at the local, state, and even federal level lately. Runoff from rainfall events can carry nutrients away and transport soil to rivers and lakes. Site-specific and watershed-based factors can impact erosion, leading to sediment loading and other water and aquatic habitat… Read More »

Complete Streets Safely Serve Everyone

Complete Streets are created for everyone. Traditionally, roadways were primarily designed for motor vehicles. Over time, roadway design has evolved to include multimodal transportation concepts and features. The forerunner of Complete Streets policy was introduced in 1971 by the Oregon Department of Transportation, which required that new roads accommodate bicyclists and pedestrians. Since then Smart… Read More »