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SS0201-BD040423BID PROPOSAL ADDENDA ADDENDUM NO: PROJECT NAME: ONE Coppell Road/Service Center Sewer SS 02-01 ISSUE DATE: April 23, 2004 BD DATE: April 27, 2004 LOCATION: COPPELL, TEXAS ISSUED BY: City of Coppell 1. This addendum modifies and extends the requirements of the plans and construction specifications for the above referenced project. 2. Staple this addendum to the inside of the rear cover of the construction specifications or bind it into the construction specifications at the end of the Bid Proposal. 3. Note receipt of all addenda on the Bid Form located in the Bidding Documents, and also on the outside cover of the envelope containing the Bid Documents. CONSTRUCTION SPECIFICATIONS Section 5 - Description of Pay Items Page 5-3 1. 1.2.2. Pay Items//I-2 - Clearing and Site Preparation: Add: "Trees to be removed under this contract will be flagged for removal at the beginning of the job by the city inspector. Any trees not flagged for removal shall be protected throughout the duration of the project. Trees suitable for chipping shall be chipped and stockpiled on site at a location designated by the City of Coppell Engineering Department." The paragraph should read in its entirety as follows: 2.2. Pay Items #I-2 - Clearing and Site Preparation: This pay item shall consist of the clearing and removal of any and all trees, shrubs, undergrowth, rocks, miscellaneous debris, or any other foreseen or unforeseen objects that would interfere with the construction of this project. All debris removed from the site shall be disposed of off site. Trees to be removed under this contract will be flagged for removal at the beginning of the job by the city inspector. Any trees not flagged for removal shall be protected throughout the duration of the project. Trees suitable for chipping shall be chipped and stockpiled on site at a location designated by the City of Coppell Engineering Department. Measurement and Payment shall be made on the basis of the lump sum bid price, and shall include all necessary labor, materials and equipment to complete the project. 2. 2.3 Pay Item # I-3 - Furnish and Install 18" PVC Sanitary Sewer Pipe: Change: "2.3 Pay Item # I-3 - Furnish and Install 18" PVC Sanitary Sewer Pipe:" ro~ "2.3 Pay Item # I-3 Furnish and Install 18" SDR-26 PVC Sanitary Sewer Pipe:" Add: "Embedment shall be class 'D+' embedment in accordance with City of Coppell Standard Construction Detail SD20 with the exception that the rock shall be at least 6" below the pipe." The paragraph should read in its entirety as follows: 2.3. Pay Item # I-3 - Furnish and Install 18" SDR-26 PVC Sanitary Sewer Pipe: This pay Item shall consist of the installation of the 18" Sewer Pipe at the location and depth shown on the construction plans in accordance with these specifications, and the City of Coppell standard construction details. Embedment shall be class 'D+' embedment in accordance with City of Coppell Standard Construction Detail SD20 with the exception that the rock shall be at least 6" below the pipe. Measurement and payment shall be on the basis bid for linear foot (LF) of pipe installed in place, and shall be total compensation for furnishing all labor, materials and equipment necessary to complete the line. No additional compensation will be made for excavation, bedding, embedment, backfill, or any other material necessary for the successful installation of the line, with the exception of Item 1-4 below. WRITTEN QUESTIONS RECEIVED PRIOR TO 12:00PM APRIL 23~ 2004 1) What type of pipe are we to use, SDR-35 or SDR-267 See specification change above. Pipe material shall be SDR-26. 2) What type of embedment are we to use? See specification change above. Embedment shall be class D+ per detail SD20 of the City of Coppell Standard Construction Details with the exception that the rock shall be at least 6" below the pipe. 3) What is the proper procedure to abandon the existing manholes? Existing manholes shah be abandoned in accordance with the detail on sheet SD21 of the City of Coppeli Standard Construction Details, with the additional requirement that the manhole be demolished to a point at least two feet (2') below the adjacent natural grade. 4) Are you going to require any slope protection on the creek bank at the aerial crossing? Contractor shall employ such means necessary to re-establish the bank on either side of the aerial crossing, and ensure stabilization of the bank until such time as permanent vegetation is established, this may require the use of a soil retention blanket, or other devices as required. This item is subsidiary to the pipe installation, and there will be no additional pay for this work. 5) The quantity of 18" is 1759', if you go by station # to station #there is only 1729'. It is only 30' but it is at a depth of 19' to 20' which could be a fair amount of money. Are you going to change the quantity? This item is a unit price item, and as such the contractor will be paid their unit price bid for the actual quantity installed, as measured in the field. 6) The quantity for piers is 60 VF, also we must penetrate 5' into rock, if we drill more than 60' will this be an over mn of the item? This item is a unit price item, and as such the contractor will be paid their unit price bid for the actual quantity installed, as measured in the field. However, these bid documents require a penetration of six feet (6') into shale, and any inadvertent drilling in excess of that depth will be at the contractors expense. 7) What type of lining, if any is required for the section of Ductile Iron Pipe? The Ductile Iron Pipe shah be cement mortar lined on the inside with a bituminous coated outside as specified in the Standard Specifications for Public Works Construction - North Central Texas, as prepared by the North Central Texas Council of Governments. 8) What is the wall thickness required for the steel casing pipe? The steel casing pipe shall have a minimum wall thickness of 3/8". End of Addendum No. One. This addendum forms a part of the contract documents. The original Contract Documents and any prior addenda remain in full force and effect except as modified herein which shall take precedence over any contrary provisions in the prior documents. Keith R. Marvin, P.E.