Title: Turbidity Barriers Spec Type 2.DOT
Summary:
Details:
June 2008
 
Style
ASTM
Layfield Type 2.DOT
Layfield Type 2.DOT (HD)
Water Current Limitations
Layfield Type 2.DOT Turbidity barrier are for use in waters with current up to a max. of five feet per second, in deeper lakes, streams, inter-coastal and tidal areas
Floatation Buoyancy
 
19 lbs/ft
29 lbs/ft
Floatation Size
 
8” x 8” x 4’
12” x 12” x 4’
Fabric Curtain Body
 
18 oz/yd2 Yellow Vinyl coated on a 6 oz/yd2 polyester scrim
22 oz/yd2 Yellow Vinyl coated on a 6 oz/yd2 polyester scrim
Grab Tensile
D-5043
397 x 373 lbs.
500 x 400 lbs.
Tongue Tear
D-2261
96 x 86 lbs.
132 143 lbs.
Adhesion
D-751-95 Section 43.1.2
15 lbs.
25 lbs.
Hydrostatic Resistance
D-751-95, Sec 34.2
385 psi
881 psi
Connectors
Curtain edge construction has 5/8” PP twisted rope reinforcements heat sealed into a pocket with # 4 brass grommets installed approx. 12” oc. to act as a lacing point.
Ballast Chain Weight
5/16” galvanized chain/ 95 lbs. / 100’
3/8” galvanized chain/ 115 lbs. / 100’
The chain ends of each section shall connect by galvanized shackles to aluminum stress plates at the bottom corner of the barrier
Top Load Cable
5/16” vinyl coated 7 x 19 galvanized steel cable w/ min. loading of 9800 lbs.
Seams
All seams to be heat sealed

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