HEL-COR Relines and Strengthens Existing Structure
While inspecting culverts that are near the end of their useful life for potential rehabilitation, the Vermont Agency of Transportation (VTrans) discovered a sink hole over an existing 11’ diameter vertical ellipse galvanized steel structural plate pipe with almost 20’ of cover. As the best rehabilitation solution, an aluminum structural plate was utilized to reline and strengthen it.
When flooding occurred on Meacham Creek, three bridges were damaged along Union Pacific Railroad's remote service road. Due to the tight timeline, it was decided that Big R Bridge® Rolled Girders were the best solutions for all three project sites.
During reconstruction of 21 miles of highway through downtown Orlando, nine underground stormwater detention systems were constructed using DuroMaxx Steel Reinforced Polyethylene (SRPE), and ALT2 corrugated metal pipe to prevent flooding and control water quality.
When the very busy Date Palm Drive bridge over Whitewater River was deemed “structurally deficient” and “functionally obsolete," the bridge was remediated and ArmorFlex® Class 85-L Mats were installed to provide scour protection in the channel.
You may be new to DuroMaxx® Steel Reinforced Polyethylene (SRPE) pipe. If you are, here is a brief introduction. What is DuroMaxx SRPE? DuroMaxx is the brand name for this innovative technology. “Durability / Maximum Benefits / Ultra Large” … if you get the naming methodology. And steel reinforced polyethylene is exactly what it sounds like. It is a polyethylene (PE) pipe barrel that is reinforced structurally by steel rib members. Currently, it is manufactured in diameters of 30-inch up to ultra-large diameters of 120-inch. That is impressive.
Designing Best Management Practices (BMPs) in Parallel
“One’s company, two’s a crowd, and three’s a party” may not exactly apply to manufactured treatment devices (MTDs), but hopefully, this post can offer some insight that will make designing multiple MTDs in parallel a little more fun.
It is common practice to utilize different Best Management Practices (BMPs) in series or “treatment trains” to satisfy project requirements. The presiding regulatory agency may have an impact on the type and order of the BMPs selected.
As civil engineers, it's our duty to transform our world for the betterment of all people. USF professor Maya Trotz examines social equity in infrastructure and the role of engineers in creating an equitable and inclusive built environment.
The Professional Development Series is a unique opportunity to earn continuing education credit by reading specially focused, sponsored articles in Informed Infrastructure. If you read the following article, display your understanding of the stated learning objectives, and follow the simple instructions, you can fulfill a portion of your continuing education requirements at no cost to you.
