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Manhole Alternatives for Large Diameter Sewers

The world of sanitary and storm sewers has seen a growing need for larger diameters to carry water. As pipe sizes increase, designing manway access becomes more

Capturing Rainwater

Fall is finally here! The sun rises a little later and sets a little sooner, the days and nights become cooler. This causes the leaves to change color, and we

Techniques for Maximizing Runoff Reduction with Biofiltration

The terms “high-rate biofiltration” and “runoff reduction” aren’t often used in the same sentence. The engineering community has a preconceived notion that a high-rate biofilter with an underdrain (like Filterra®) can’t provide runoff reduction benefits because the stormwater it treats moves through the practice too quickly. However, with the proper design considerations, we can maximize the capability of a high-rate biofilter to provide appreciable runoff reduction. 

The Vital Role of Design Storms in Civil Engineering and Storm...

In civil engineering and stormwater management, a design storm refers to a specific rainfall event defined and described by the statistical likelihood of the event occurring in a given rainfall year. Design storms are used as a standard for designing and evaluating stormwater infrastructure. For example, local stormwater standards commonly call out the 1, 2, 5, 10, 50, and 100-year storm events and the water quality storm event for a given geography, each of which plays a role in the design and implementation of stormwater infrastructure.