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Fittings shall be pressed steel or malleable iron and hot dip galvanized per requirements of <br /> ASTM-A 153-82.Tie wires shall be minimum nine gauge aluminum or 11 gauge <br /> galvanized steel. <br /> B. Posts,gate frames,rails and braces shall conform to dimensions and weights as follows: <br /> (NOTE: There shall be no mixing of different type sections on the job; contractor options <br /> are allowed as noted below.) <br /> 1. Line Posts: Line posts shall be C-Section roll formed from steel conforming to <br /> ASTM-A570, 1.70" x 2.25" with minimum bending strength of 314 pounds under a 6 <br /> foot cantilever load,or 2-3/8" O.D. standard weight pipe with minimum bending <br /> strength of 201 pounds under a 6 foot cantilever load,or High- Strength H Posts <br /> 1.70"x 2.25" with a minimum bending strength of 413 pounds under a 6 foot <br /> cantilever load. <br /> 2. Terminal Posts: All end,corner,gate posts and pull posts shall be roll formed section <br /> 3.5" x 3.5" with minimum bending strength of 486 pounds on 6 foot cantiliver load or <br /> 2-7/8" O.D. galvanized standard weight pipe with minimum bending strength of 381 <br /> pounds on 6 foot cantilever load. Gate posts shall be standard weight pipe of the <br /> following sizes for single swing,gates or one leaf of double gates: <br /> Leaf Width Gate Post Lbs./Lin.Ft. <br /> Up to 6' 3-1/2"x 3-1/2" roll 4.85 <br /> formed section or <br /> 3" O.D.Pipe 5.79 <br /> Over 6'to 13' 4" O.D.Pipe 9.11 <br /> Over 13'to 18' 6-5/8" O.D. Pipe 18.97 <br /> Over 18' 8-5/8" O.D.Pipe 28.55 <br /> 3. Top and Brace Rail: Top and brace rails shall be roll formed section of 1.625" x <br /> 1.25" channel shaped rail with minimum vertical bending strength of 192 pounds on <br /> 10'span or 1.66" O.D.standard weight pipe with minimum vertical bending strength <br /> of 202 pounds on 10 foot span. Top rail couplings 6" minimum in length shall be <br /> spaced at a maximum of 21'centers and 9 gauge minimum fabric tie wire shall be <br /> spaced at 2'maximum centers. <br /> C. All fittings shall be pressed steel or malleable iron. <br /> D. Gates shall be swing type complete with latches, stops,keepers and hinges. Keepers shall <br /> consist of a mechanical device for securing the free end of the gate when in full opening <br /> position. <br /> ADDENDUM#1 <br /> • <br /> 1607.001 -ORONO ICE ARENA(CP-2). Page 02830 -2 <br />