Turf reinforcement with Tensar InterAx Geogrid

Circuit of the Americas Overflow Parking


  Engineer: GeoSolutions

  Contractor: Circuit of the Americas

   Date: June 2012


Project Goals and Specs:

Provide a cost-effective solution to stabilize the vegetated overflow parking areas to regain accessibility and eliminate recurring towing fees and maintenance from past events.


GEOWEB being used for retaining highway wall
Problem:

Torrential downpours from historical rain events during the June 2021 NASCAR Cup Series introduced a new challenge for Circuit of the Americas. The vegetated, overflow parking area became inundated with problems due to the saturated soils, causing major rutting and a multitude of stuck vehicles. Ultimately, costing over $100,000 in towing fees and maintenance.


GEOWEB being used for retaining highway wall
Solution & Results:

The high cost to extend the existing pavement section led COTA to begin looking at an alternative approach to protect the vegetated area. A high strength geosynthetic layer creates a bridge or break between a tire load and a saturated soil, allowing vehicles to traffic the area without rutting or slipping. The purpose of the install was to cover about 20,000 square feet of the vegetated area with various geosynthetic materials against an unreinforced, control area. The area was purposefully flooded by water trucks to recreate a heavy rain event, while a variety of vehicles trafficked the site.

The results were evident for one area in particular. The area reinforced with Tensar InterAx outperformed all other materials, as well as the control area, serving the site with a stiff reinforcement layer of geogrid for the minimiza- tion of rutting. Thus, creating a safe and accessible vegetated lot for overflow parking. InterAx added a frictional element to minimize vehicular slipping and sliding. It’s unique polypropylene structure allowed InterAx to lay flatter than all other tested products. Wider apertures within the geogrid allowed the existing vegetation to effectively penetrate the system for a natural aesthetic. The customer is confident that InterAx is the right solution for the overflow lot and anticipates pursuing the option in time for the next upcoming event.

Customer Testimonial
"InterAx is the right solution for the overflow lot and we anticipate pursuing this option in time for the next upcoming event."
Circuit of the Americas
Your Civil Sitework Solutions Advisor

As an engineer or contractor, completing your sitework projects on time and with budget is critical for maintaining a positive reputation and securing future business.

Unfortunately, too often due to soft soils, you are forced to extend your projects timeline or worse increase your budget. Putting you and your team at risk for penalties or fees, and leaving you feeling stressed over the success of your project.

You deserve a team of registered professionals, industry-leading innovators, and access to proven solutions to provide you and your clients the clarity and confidence you deserve.

Stop stressing over completing your projects on time and within budget. Instead, cut costs, save time, increase performance and capitalize on a full-service solution from your project's start to finish.

Free Project Evaluation

Don’t let soft soils slow down your sitework projects any longer. Take control and Submit a Free Project Evaluation now to identify how using Tensar InterAx geogrid can help you reduce cost, install time and improve your design’s life and performance for your subgrade stabilization, pavement, and working platforms project. Submit a Free Project Evaluation now.

SUBMIT
Join Our Innovators List

Always be the first to know about new products, resources, and tools that impact our industry and your performance.

Conventional Methods are Too Expensive

Download our free PDF resource to identify how the Tensar InterAx Geogrid can reduce cost and install time while improving your subgrade stabilization design's life and performance.

Connect With Us

Always be the first to know about new products, resources, and tools that impact our industry and your performance.