ScourStop Transition Mats

ScourStop mats offer lower maintenance costs, longer service life, and a more aesthetically pleasing appearance than rock riprap. They provide comparable or superior hydraulic performance — rated for high-velocity flows — while reducing the volume of aggregate material needed and simplifying the installation process.

Products like Flexamat and Concrete Canvas are engineered to resist velocities exceeding 30 feet per second and shear stresses of 24+ pounds per square foot. This makes them suitable for high-energy flow environments including culvert outlets, bridge abutments, channel side slopes, and roadside channels.

Yes. All products in this category — Flexamat, ScourStop, and Concrete Canvas — are rated for permanent installation. They are designed to maintain structural integrity over the long term, even in continuously wet or high-flow environments, reducing the need for repeated repairs or replacements.

Flexamat and ScourStop are specifically designed to encourage vegetative growth. Flexamat uses a bi-axial polypropylene geogrid that allows grass to grow through and around the concrete blocks, and can be mowed once established. Concrete Canvas provides a rigid non-vegetated surface suited to hard-armor applications.

These mats are used across a wide range of civil and hydraulic applications including culvert outlets, stream banks, shoreline protection, roadside channels, detention basins, bridge abutments, weir overflow areas, channel side slopes, letdown channels, and pipe and culvert inlets and outlets.

ScourStop by Landmark is specifically noted as NPDES-compliant, making it suitable for stormwater management projects subject to National Pollutant Discharge Elimination System regulations. Concrete Canvas also emphasizes minimal ecological impact with a low alkaline reserve and low wash rate, supporting responsible environmental practices.