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' width for the height of the rock , at minimum 200-foot intervals alongthe trench . h . ' Item No. 6 — Revise paragraph SC-4 . 02 . D of the Supplementary Conditions to read : " Reports and drawings itemized in SC-4 . 02 . 0 are not included with the Bidding Documents . Copies may be examined at Indian River County Public ' Works , 1840 25th Street 4798 2. 4 Gil .84 , Vero Beach , Florida , during regular business hours . These reports are not part of the Contract Documents . " ' Item No . 7 — Clarification regarding the last date that written questions will be answered by the ENGINEER : In accordance with Article 7 — Interpretations and Addenda , written questions about the meaning or intent of the Bidding ' Documents must be received on or before April 28 , 2003 . This is different than the date given in the pre-bid conference . ' Items No. 8 . a through 8 . k, inclusive — The following information is provided in response to questions raised at the April 17 , 2003 Pre-Bid Conference : ' 8 . a . Question : The 324nch diameter casing pipe under the railroad crossing is an oddball size. Can another, more standardized casing pipe size be used? Answer: Per the Carter Associates , Inc . design engineer, a 32-inch diameter casing pipe is the minimum acceptable size . To avoid possible ' delays brought about by requesting F . E . C . Railroad approval of a larger casing size , the permitted 32-inch diameter casing pipe shall be used . ' 8 . b. Question: Does the paving detail that appears on Sheet 8 apply to driveways as well as roadways ? Answer: No . Refer to Section 02526 , paragraph 3 . 2 , "Sidewalk and ' Driveway Restoration . " 8 . c . Question : Does the pipe backrill detail on Sheet 8 apply to all pipe along ' U. S. No. 9 ? Answer: The answer given at the pre-bid conference was incorrect. Per the Carter Associates , Inc. design engineer, all pipe in U . S . No . 1 right-of- ' way does have to be installed per the " Pipe Backfill Detail @ U . S . Hwy. No . 1 " as shown on Sheet 8 . (This system will serve as an infiltration gallery to lower the groundwater table . ) ' 8 . d . Question : The plans show some structures sitting on top of existing water main. Will the water main need to be relocated ? ' Answer: Along U . S . Highway No . 1 , there are at least two drainage structures that are located over an existing 8-inch PVC water main . In these instances , remove the existing PVC water main from below the ' proposed drainage structure location and install a new 18400t or 2046ot section of ductile iron pipe water main . Place the ductile iron pipe so that the drainage structure is located over the center of the pipe ' s length . ' Addendum No. 1 - 2 EAST GIFFORD R\Public Works\KeithM\Stormwater Projects\Gftrd East\Construction Contract\Bidding & Contract Documents\Bidding & ' Contract Documents\Hddendum #001 .doc