Creative Problem Solving Helps VDOT With Rehabilitation Project Near Busy Roads
When the Virginia Department of Transportation takes on its latest project, there are two big obstacles. Ferguson Waterworks works with them to stabilized pipe outfall from scouring.
Challenge
The Department of Transportation undertook a roadway rehabilitation project in Chesterfield, Virginia. As part of the project, they needed to install two sediment basins on Woolridge Road and Otterdale Road. Once the project was completed, they installed a chain-link fence around the basin.
Unfortunately, the site inspector noticed a scouring issue at the base of the pipe outfall leading to the basin. Curtis Contracting Inc., was then tasked with providing a permanent solution to protect the basin. The inspector suggested the contractor use rip rap to stabilize the outfall. However, it was logistically impossible to use rip rap without closing the road for delivery and taking down the newly erected fence. That’s when they contacted Ferguson Waterworks. Our goal? Stabilize the pipe outfall from scouring without removing the fence or shutting down the busy roadway.
Solution
After reviewing the project’s scope, we recommended ShoreFlex erosion control mats to prevent the scouring. In order to accommodate the other obstacles, our team worked closely with the onsite contractors to develop a delivery plan that not only accommodated the existing fence but also would not hinder the flow of traffic.
Product Advantages
Shoreflex concrete mat (also known as a grout mattress) offers permanent erosion control. Additional key benefits of this geomembrane/composite include:
- Custom sizing
- Rolled packaging with lifting and anchoring loops for easy distribution, handling, and installation
- Cost-efficient in comparison to rip rap
- Requires no maintenance
Method
Because Woolridge and Otterdale Road are highly trafficked, Ferguson Waterworks devised a plan for a quick and seamless delivery. Firstly, we ensured the delivery vehicle fit on the shoulder of the road, allowing traffic to pass. Then, each concrete mat was placed on the 12′ flatbed truck. Once the erosion control materials were loaded and driven to the site, it was time to tackle obstacle 2 – the chainlink fence.
The Shoreflex concrete mats were conveyed over the chain-link fence using the mat’s lifting straps. Once in the correct location, they were quickly unrolled and anchored down for permanent stabilization of the pipe outfall.
Why Ferguson Waterworks?
The Virginia Department of Transportation partnered with ACF Environmental—now Ferguson Waterworks—because of great customer relations and an established reputation for providing innovative solutions. We were able to provide prompt delivery and on-site support during installation.
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