Engineering answers, straight.
The most common procurement and specification questions, answered by our engineering team.
Frequently Asked Questions
Engineering answers to the most common procurement and specification questions.
01 How long do Texas Tuff Rock Bags last?
In water, Texas Tuff Rock Bags are engineered for a long-term, durable service life. The polyester mesh is rated for 30+ years of UV exposure above water. These ratings are based on virgin-polyester material specifications and laboratory testing.
02 How do Texas Tuff Rock Bags compare to gabions and riprap?
Texas Tuff Rock Bags deploy in minutes per unit instead of hours, conform to scour rather than fracturing under it, and don't require the wire-mesh maintenance that gabions do. Compared to riprap, rock bags stay where you put them — they don't migrate downstream during high-flow events.
03 What size rock bag do I need?
It depends on flow velocity, depth, and the application. As a starting point: 2-Ton bags are the most-specified size — common for streambanks, shoreline revetment, and light-to-moderate scour; 4-Ton bags step up for bridges, riverbanks, and port toes in higher-energy conditions; 8-Ton bags are used for offshore, severe currents, and oil & gas.
04 What testing and certifications back the product?
Texas Tuff Rock Bags are tested to industry ASTM & ISO standards (tensile, puncture, and tear), with results validated by TRI Environmental/SGS/GTS. Test reports and certifications are available on request for project documentation.
05 How fast can FES Solutions ship for an emergency?
Stocked inventory lets us ship for storm, flood, and scour emergencies on short notice — typically in days, not weeks. Call +1 512-766-6608 for emergency lead times.