Project Profile: Major Stormwater Mapping Project Locates Many Previously Unknown Structures

At this point, you are probably very familiar with RJN’s capabilities when it comes to wastewater services, including condition assessments like manhole inspections, smoke testing, dyed water flooding, and building inspections as well as flow monitoring, hydraulic modeling, master planning, SSES, and remediation and design. What you might not know is that RJN can apply our impressive skill set and use of advanced technologies to stormwater systems as well.

For example, over the last three years, RJN has been using advanced technologies to map and assess the condition of the City of San Antonio’s stormwater collection system with stellar results led by RJN’s Stormwater Lead and Project Manager Noelle Gaspard, P.E., GISP, CFM.… Read the rest

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Technology Spotlight: LiDAR Improves Efficiency and Accuracy

At RJN, we always stay abreast of the latest technologies in the industry. If there is a new technology available that can make our field investigation techniques more efficient, accurate, and cost-effective, then we will definitely pursue it by either acquiring it ourselves or collaborating with contractors who possess the new technology. In both cases, be it RJN or a contractor with whom RJN is working, the teams responsible for using the latest technology will be experts with it, able to maximize that technology’s capabilities.

But having access to the latest technologies and being trained on how best to use those technologies is not enough—experts like the engineers and technicians at RJN also need to exercise good judgment, strong strategies, and creative problem-solving to decide when using these new technologies would be most beneficial to our clients.… Read the rest

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Industry Trends: The Importance of Multiple Rain Gauge Sites

Within a single study area, the rainfall levels can vary dramatically. For instance, one of RJN’s clients saw 1.56 inches of total rainfall in 50 minutes throughout the center of the study area, but during that very same 50 minutes, the eastern part of the study area had only .1 inches of total rainfall.  Had RJN not been measuring at multiple rain gauge sites, the overall analysis of the entire study area would be both incomplete and inaccurate.

The video shown below depicts this rain event:

According to RJN’s Thomas Romza, P.E., “In this video, I enclosed the study area where we were flow monitoring.… Read the rest

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