Rebuilding resilience: post-wildfire erosion control on Pacific Palisades bluff
A homeowner used PROPEX Armormax to protect a bluff damaged by the Pacific Palisades fire to reduce erosion risk, support revegetation and mitigate future wildfires.
Trilogy at Monarch Dunes, Nipomo, California
OVERVIEW
Monarch Dunes is a resort community that offers residents golf, recreation, and a community vineyard. During construction, a drainage channel was installed in the vineyard to convey surface runoff from the housing development to detention storage basins. Due to the steepness of the slope, the amount of flow, and the erodible sandy soils, the channel severely eroded and failed. The developer needed a solution to provide long-term stabilization of the channel.
CHALLENGE
Initially hard armoring solutions were considered, but the developer wanted a more natural aesthetic. A combination of PROPEX ®Armormax® and PROPEX Pyramattress ®, an engineered mattress system that uses PROPEX Pyramat® 75 high performance turf reinforcement mat (HPTRM) to construct a geosynthetic/soil/rock composite for protection of channels, slopes, and spillways, was selected. The combined system was designed to provide erosion control on the side slopes and scour resistance in the channel bottom caused by the constant flow of water.
Unlike hard armoring technologies, PROPEX Pyramattress components are corrosion resistant and promote vegetation, allowing for an increased design life that is environmentally friendly.
SOLUTION
The installation of this project was quick and easy because PROPEX Pyramattress and PROPEX Armormax are more easily transported than hard armoring solutions. The systems also install faster than conventional methods, saving time and money.
Explore more case studies
View all
Seawall construction, Brisbane Port expansion, QLD, Australia
The Port of Brisbane expanded by constructing a reinforced seawall to enable 230 ha of land reclamation using dredged materials while managing soft clay foundations and protecting the Moreton Bay Marine Park.
High speed railway embankment over karst foundation, Guizhou Province, China
The Anshun–Liupanshui high-speed railway crosses challenging karst terrain in Guizhou Province. Two layers of MIRAFI PET600 geotextile reinforcement were installed at the embankment base to limit deformation and manage subsidence risk under strict settlement criteria.