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2010-05-07_PERMIT FILE - C2009087 (45)
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2010-05-07_PERMIT FILE - C2009087 (45)
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Last modified
8/24/2016 4:11:38 PM
Creation date
6/3/2010 4:40:33 PM
Metadata
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Template:
DRMS Permit Index
Permit No
C2009087
IBM Index Class Name
Permit File
Doc Date
5/7/2010
Doc Name
Turf Reinforcement Mat Design & Installation Information
Section_Exhibit Name
Exhibit 2.05.3-E2 Appendix 2.05.3-E2.G Attachment 2.05.3-E2.G-3
Media Type
D
Archive
No
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• <br />• <br />PERFORMANCE SPECIFICATION <br />NORTH <br />P550 <br />The composite turf reinforcement mat (C-TRM) shall be a machine- produced mat of 100% UV stabilized <br />polypropylene fiber matrix incorporated into a permanent three - dimensional turf reinforcement matting. <br />The matrix shall be evenly distributed across the entire width of the matting and stitch bonded between the <br />bottom and middle ultra heavy duty UV stabilized nettings with 0.50 x 0.50 inch (1.27 x 127 can) openings and <br />then covered by an ultra heavy duty LTV stabilized nettings with 0.50 x 0.50 inch (1.27 x 1.27 cm) openings. The <br />middle, dramatically corrugated (crimped) netting shall form prominent closely spaced ridges across the entire <br />width of the mat The three nets shall be stitched together on 1.50 inch (3.81 cm) centers with UV stabilized <br />polypropylene thread to form a permanent three-dimensional turf reinforcement platting. <br />520ft (6 <br />20 -50 <br />z 50 ft (15. <br />Roughness C oefficients - Unvegetaten <br />Flow Depth Manning's'n <br />50.50ft (0.15m) 0.041 <br />0.50 - 2.00 ft 0.040 - 0.014 <br />z2.00ft (0.60m) 0.013 <br />A proximate Maxi mum Flow Velocity <br />Unvegetated =12.5 ft/s (3.8 m /s) <br />Vegetated = 25 ft/s (7.6 m /s) <br />Values are approximate, precise values can be obtained using ECMDS' <br />*Performance values obtained through third party testing at the Texas Transportation Institute, Colorado State University, <br />and Utah State University based on soil loss failure criteria not exceeding 0.50 inches (1.27 cm). <br />Data - Unvegretated Cover Factors <br />Sl ope Gradient (S) <br />5 3:1 <br />3:1 -2:1 <br />2:2-1 <br />0.00045 <br />0.0145 <br />0.0425 <br />0.0173 <br />0.0305 <br />0.0495 <br />0.0345 <br />0.0465 <br />0.0565 <br />Channel Design Data <br />Maximum Permissible Shear Stress <br />Short Duration <br />Long Duration <br />phase 1 <br />4.0 lbs/ftz <br />3.25 lbs/ft <br />UNVEGETATED <br />(191 Pa) <br />(156 Pa) <br />Phase 2 <br />12-0 lbs/ftz <br />12.0 lbs /ftz <br />PARTIALLY VEGETATED <br />(576 Pa) <br />(576 Pa) <br />Phase 3 <br />14.0lbs/ft <br />12.0lbs/fF <br />(576 Pa) <br />FULLY VEGETATED <br />(672 Pa) <br />• <br />
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