Wattles | Sediment Logs

ASTM - D7208 | Curlex Sediment Log Test Video

Curlex Sediment Logs use excelsior fibers to reduce hydraulic energy & filter sediment-laden runoff. Tired of straw and hay bale checks being blown out and the fibers washed downstream to clog the nearest outlet?
Install Sediment Logs over bare soil and/or biodegradable & permanent erosion control blankets, on steep slopes as a wattle, around drains for inlet protection, or around job sites for perimeter control.

Premier Straw® Wattles

Premier Straw Wattles are tubular products consisting of the finest available agricultural straw fibers encased in durable netting. The straw fibers are certified weed seed free. Straw wattles are dense by nature, thus they pool water unlike Curlex Sediment Logs that allow water to filter through its porous matrix. Premier Straw wattles may be placed across channels bottoms, but their primary use is on hillslopes to break up slope lengths and slow overland flow.

Material Specifications
Product Name / Nominal Diameter 9.0" in 12.0" in 20.0" in
Minimum Diameter 8.5 in (21.6 cm) 11.5 in (29.2 cm) 19.0 (48.3 cm)
Length (±10%) 25.0 ft (7.6 m) 10.0 ft (3.1 m) 10.0 ft (3.1 m)
Weight (±10%) 50.0 lb (22.7 kg) 30.0 lb (13.6 kg) 60.0 lb (27.2 kg)
Density (±10%) 4.53 lb/ft3 (72.6 kg/m3) 3.82 lb/ft3 (61.3 kg/m3) 2.75 lb/ft3 (44.1 kg/m3)

Slope Spacing Guide

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Curlex® Sediment Log®

Curlex Sediment Log® use excelsior fibers to reduce hydraulic energy & filter sediment-laden runoff. Tired of straw and hay bale checks being blown out and the fibers washed downstream to clog the nearest outlet? Fed up with spending all of your time and effort installing silt fence only to see it be knocked down when it rains or a good wind comes along? How about when you have to go back and pick up the loose fibers and/or remove those worn out silt fences and take them to the landfill? Next time, consider trying our environmentally friendly, naturally seed free, Curlex Sediment Logs. Water filters through (not underneath) the diameter of the porous, interlocked fiber log matrix. As it does, velocity is naturally reduced and sediment is collected on the upstream side of the excelsior fiber log. Install Sediment Logs over bare soil and/or biodegradable & permanent erosion control blankets, on steep slopes as a wattle, around drains for inlet protection, or around job sites for perimeter control.

Sediment Log®

Curlex Sediment Logs are versatile excelsior logs comprised of an outside containment fabric and filled with unique Curlex® fibers. Curlex fibers are made of Great Lakes Aspen excelsior fibers. The fibers are curled with soft interlocking barbs and 80% will be six inches in length or longer. Curlex is considered the industry standard by many because of the plethora of Curlex Features and Benefits. The outside, open weave containment fabric is degradable, thus Curlex Sediment Logs will degrade in place if not removed. Curlex Sediment Logs are porous, allowing water to pass through the excelsior matrix, progressively slowing velocity and filtering sediment as it passes through the log diameter. Sediment Logs are extremely flexible and contour to the terrain to maintain intimate contact with the sub-grade. In addition, they come with six other benefits; lightweight, no trenching, no weed seeds, no disposal hassles, are re-usable and hold their shape.


Performance Capabilities
  • Type I (20 in DN) - energy dissipation in heavy duty concentrated flow areas, slope interruption, inlet protection, perimeter control
  • Type II (12 in DN) - energy dissipation in mild to medium concentrated flow areas, slope interruption, inlet protection, perimeter control
  • Type III (9 in DN) - energy dissipation in mild concentrated flow areas, slope interruption, inlet protection, perimeter control
  • Type IV (6 in DN) - energy dissipation in low concentrated flow areas, slope interruption, inlet protection, perimeter control
Typical Applications

Energy dissipation and Sediment Control Device for:

  • Ditch bottoms, swales, and waterways.
  • Over bare soils and/or temporary & turf reinforcement mats (TRMs).
  • Drop structures and let down structures.
  • 360 degree protection around catch basins & drop inlet structures.
  • Curb & drainage outlets
  • Project ingress & egress termination points
  • As wattles on steep slopes
  • Site perimeter control
  • Use in place of bales, silt fence, reinforced silt fence, and rock checks
8.0 Clean Up:
TypeI* TypeII* TypeIII* TypeIV*
Product Name/Nominal Diameter 50 cm (20 in) 30 cm (12 in) 23 cm (9 in) 15 cm (6 in)
Minimum Diameter 45.7 cm (18.0 in) 27.9 cm (11.0 in) 20.3 cm (8.0 in) 14.0 cm (5.5 in)
Length (±10%) 3.1 m (10 ft) 3.1 m (10 ft) 7.6 m (25 ft) 7.6 m (25 ft)
Weight** (±10%) 13.6 kg (30 lb) 9.1 kg (20 lb) 11.3 kg (25 lb) 5.4 kg (12 lb)
Density** (±10%) 22.00 kg/m3
(1.38 lb/ft3)
40.08 kg/m3
(2.54 lb/ft3)
36.26 kg/m3
(2.26 lb/ft3)
39.15 kg/m3
(2.44 lb/ft3)

*Custom sizes available.
**Weight is based on a dry fiber weight basis at time of manufacture. Baseline moisture content of Great Lakes Aspen excelsior is 22%.

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