HomeMy WebLinkAboutCORRESPONDENCE - BID - 5452 MAPO TRAFFIC SIGN POSTS (2)'= VI
SPECIFICATIONS
1. SECTION 1 SIGN POSTS
Material
Steel posts furnished shall conform to the Standard Specifications for Hot rolled Carbon Steel,
commercial quality ASTM Designation A-569-72
Finish
Material shall be hot dipped galvanized coating conforming to ASTM A525, Des G-90 Zinc coating to
form an excellent bond with the steel surface so as not to be affected by subsequent forming operations
Corner weld shall be zinc coated after scarfing operation Exposed edges to be protected against
corrosion by "sacrificial action" when zinc is present on intimate adjacent areas
Shape
The cross section of the post shall be square tubing formed of 12 gauge (A 05 USS gauge) steel,
carefully formed into six and, if necessary, shall be welded in such a manner that weld or flash shall not
interfere with telescoping.
Holes
Hole diameter shall be seven -sixteenth (7/16") plus or minus one sixty-fourth (1/64") inch on 1" centers,
on all four sides, for the entire length of the post. Holes shall be on the cenler line of each side true
alignment, and opposite to each other
Length
The length of each post shall be as specified, and have a permissible length tolerance of plus or minus
one -quarter (1/4) inch. Cuts through holes will not be accepted
Telescopmq Properties
The finished posts shall be straight and shall have a smooth, uniform finish. It shall be possible to
telescope all consecutive sizes of square tubes freely and for not less than ten feet or their length without
the necessity of matching any particular face to any other face All holes and ends shall be free from
burrs, and ends shall be cut square
Delivery Requirements
Delivery of these materials must be made in a flat-bed trailer for fork lift unloading, otherwise the order
shall be refused, unless transporter agrees to unload on -site Twenty-four (24) hour notice must be
given prior to delivery
Specifications
The specifications shall be considered a minimum specification
2. SECTION 2 U-CHANNEL DELINEATOR POSTS
A. Must have baked green enamel finish. The post must have centered 3/8" holes on 1"centers the
entire length with the length and pounds per linear foot as specified on bid schedule, Section VIII.
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