Village of Ryley
Reconstructing a 1.8km long 50 Avenue which is the Village’s main street. CALL FOR QUOTEYear
2016
Client
MD of Ryley
Canada
Overview
The Village of Ryley, located in Beaver County in central Alberta, needed to reconstruct their 1.8km long 50 Avenue which is the Village’s main street. Like many rural municipalities in Alberta, the Village struggled with budget limitations and experienced continuous, recurring and costly road repairs. They sought a solution that would reduce the amount of capital required for repairs, increase the safety, strength, and durability of their roads, reduce future maintenance costs and provide an environmentally responsible solution by lowering the CO2 emissions of the project. Paradox Access Solutions proposed an innovative construction method utilizing Tough Cell® NPA Geocell reinforcement that brought costs within reach and allowed the Village to move forward with a project they could not otherwise have afforded. It also enabled designers to reduce the amount of required aggregate and asphalt, which meant less CO2 emissions that result in construction activities. The project: •Reduced the cost of maintaining the key roadway •Lowered CO2 emissions below anticipated levels due to lowered transportation and construction activities
Year
2016
Client
MD of Ryley
Canada
Overview
The Village of Ryley, located in Beaver County in central Alberta, needed to reconstruct their 1.8km long 50 Avenue which is the Village’s main street. Like many rural municipalities in Alberta, the Village struggled with budget limitations and experienced continuous, recurring and costly road repairs. They sought a solution that would reduce the amount of capital required for repairs, increase the safety, strength, and durability of their roads, reduce future maintenance costs and provide an environmentally responsible solution by lowering the CO2 emissions of the project. Paradox Access Solutions proposed an innovative construction method utilizing Tough Cell® NPA Geocell reinforcement that brought costs within reach and allowed the Village to move forward with a project they could not otherwise have afforded. It also enabled designers to reduce the amount of required aggregate and asphalt, which meant less CO2 emissions that result in construction activities. The project: •Reduced the cost of maintaining the key roadway •Lowered CO2 emissions below anticipated levels due to lowered transportation and construction activities
Testimonials
“The Village of Ryley required a design for 50th Avenue, the main access into the village from Highway 14. This road has always been problematic, and… Tough Cell® geocells were chosen to reinforce the road structure. Paradox Access Solutions was responsible for the construction of the project. The Village of Ryley was happy with the construction process, work performed, and degree of professionalism of Paradox Access Solutions’ construction crew” – Janet Winsnes, CAO, Village of Ryley
Challenges
Paradox’s patented Tough Cell solution was the most suitable technology for reinforcing the ground on this site. Tough Cell met all requirements specified by the MD of Ryley, including (but not limited to):
Unstable Terrain
The existing subgrade was very old and made up of organic and other nonstandard materials.
Transportation Cost
Trucking in costly gravel infill was replaced with cost-effective, locally available gravel pit screenings.
All-season access
Stabilizing poor soil subgrade and building long-lasting roads with increased bearing capacity for residential and commercial vehicles and heavy equipment.
Our Approach
The conventional option would have been to construct 100mm Asphalt Concrete pavement over a 300mm Granular Base Course (GBC). With the use of NPA Geocells, the layers’ thickness was reduced by 25% down to 75mm of AC and 225mm of GBC, thereby lowering costs. It is of note that employing NPA Geocells does not adversely affect the project schedule as the installation crew was always ahead of the civil earthwork crew. In addition, a section of curb and gutter structure was removed and replaced, and the corresponding ditches re-shaped to direct drainage to two of three existing operational culverts. The third culvert was replaced by Paradox.
Advantages
•Reduces the settlement of ballast materials and fouling by subgrade attrition
•Is particularly effective for building over muskeg and other poor soil subgrades
•Can be installed year-round in a timely manner, regardless of the season or weather
•Supporting multi-directional confinement, Tough Cell enlarges the influence zone to 50-200mm, above and below cell height. Tough Cells can cover load support reinforcement and areas where water and drainage capabilities need to be considered.
Benefits
•Proven engineering solution that offers the only viable, long-term alternative to traditional road construction
•Provides increased bearing capacity and longevity for roads with heavy track demands
•Minimizes the import and quantity of aggregate, and therefore transportation costs, by utilizing locally available sand, recycled concrete and asphalt, and/or other materials
•Reduces future maintenance and C02 emissions.
•Decrease or avoid transportation costs by being able to build over muskeg and wet conditions.
•Supports a natural vegetation growth environment through erosion control and slope protection, in comparison to other geotechnical solutions
Results
The innovative design saved the Village nearly 10% of the projected initial investment cost and reduced the quantity of construction material, which contributed to a 20% reduction in CO2 emissions compared to the conventional alternative. These are savings that can be redirected elsewhere for the benefit of the community, in providing more services, amenities and ultimately enhance the quality of life for residents of Ryley.
