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MIRAFI RSi-Series geotextiles were installed with at least one foot of overlap, allowing for reduced excavation and material transport while maintaining stability.
The geosynthetic-reinforced sections enabled faster construction by minimizing excavation into utilities and reducing aggregate use, expediting the overall project timeline.
Big Bethel Blueway channel stabilization supports stormwater resilience in Hampton
The City of Hampton used PROPEX® Armormax® to stabilize the Big Bethel Blueway drainage channel. The system showed no erosion after floodwater reached four to six feet during installation while supporting a vegetated approach to erosion control.
Stabilizing lost trail pass with PROPEX Armormax
At Loss Trial Pass, PROPEX® Armormax® with B3 anchors stabilized a steep, failing slope beside highway 93. The system addressed remote access, heavy snow loading, and erosion while allowing the roadway to remain open during installation.
Managing subsurface moisture at Missouri River bridge with MIRAFI
MIRAFI® H2Ri was incorporated into Missouri River bridge approaches to manage subsurface moisture, replace a drainable aggregate layer, and reduce aggregate requirements while supporting pavement construction.
The town of Palisade, located in Mesa County, is known as the peach and wine capital of Colorado. The Town needed to rebuild its Main Street to keep up with the growing diversity and increased traffic load in an expedient and cost-effective manner. During the reconstruction of Main Street, soft soils and shallow utilities were expected to be encountered, creating challenging conditions for construction.
The geotechnical investigation concluded soil characteristics would vary, with the first boring indicating a moist, dense, sandy gravel, and the remainder of the borings indicating a moist, soft to stiff, lean clay. Laboratory testing results indicated that the native clay soils were moderately plastic and tended to consolidate under loading at their existing density. The California Bearing Ratio (CBR) was determined to be less than 2%.
The benefits of utilizing geosynthetic-reduced sections on this project included both time and cost savings. The contractor installed MIRAFI® RSi-Series geotextiles with ease, maintaining a minimum of one foot of overlap. The geosynthetic-reinforced sections provided faster construction due to reduced excavation, less aggregate to transport and install, and not having to excavate into utilities. The expedited construction schedule equated to happier townspeople and shop owners.
Accounting for the reduction in excavation and the reduction of the aggregate section thicknesses, it is estimated that the geosynthetic-reinforced designs provided approximately $60,000 in cost savings. The engineer put his best foot forward in providing cost-saving options to the Town, and the Town put their best foot forward by utilizing the cost-saving designs, which saved taxpayer dollars.