ASSEMBLY,SLIP BASE,ADAPTABLE,F/SIGN POST MULTI-DIRECTIONAL, ADAPTABLE SLIP BASE UNIT MUST FIT EXISTING MULTI- DIRECTIONAL BASE MOUNTED SUPPORTS FOR 2 7/8 IN O.D. ROUND STEEL SIGN POSTS, INCLUDES MOUNTING HARDWARE, DOTD SPEC NO. 299-007, REV 2/6/2017; POST,SIGN,ROUND,2 7/8 IN OD X 12 FT STEEL, GALVANIZED, DOTD SPEC NO. 299-007 REV 2/6/2017; BRACKET,BARRIER MOUNT,CONCRETE,INDEXABLE BRACKET SHALL CONSIST OF A 10 IN L X 4.5 IN W X 5/8 IN THICK STEEL MOUNTING PLATE, A 2.5 IN X 2.5 IN X 6 IN SQUARE 7 GA STEEL TUBE, TWO (2) THREADED CONCRETE ANCHOR BOLTS TO SECURE THE BRACKET TO THE CONCRETE BARRIER, TWO (2) SHOULDER BOLTS AND TWO (2) NUTS TO ATTACH THE SIGN POST TO THE BRACKET. PLATE SHALL HAVE TWO (2) .75 IN DIAMETER SLOTS ON A 10 IN BOLT CIRCLE. SLOTS SHALL ALLOW THE PLATE TO BE ROTATED UP TO 30 DEGREES DURING INSTALATION. AN ADDITIONAL .75 IN HOLE LOCATED IN THE CENTER OF THE PLATE. CENTER HOLE WILL BE USED FOR ADDITIONAL HOLDING STRENGTH WHEN INSERTING THE 2 IN X 2 IN SQUARE POSTS. THE 2.5 IN X 2.5 IN X 6 IN SQUARE 7 GA STEEL TUBE SHALL BE WELDED TO THE CENTER OF THE PLATE. ASSEMBLY MUST BE HOT DIP GALVANIZED IN ACCORDANCE WITH ASTM A123. XCESSORIES SQUARED, PART NO. ICBM 4510-200-G, OR EQUAL.
