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Home My WebLink About94-172 Resolution No. 94-172 RESOLUTION APPROVING CHANGE ORDER NO. 3 IN THE CONTRACT WITH CLARK DIETZ, INC. FOR THE NORTHWEST AREA INTERCEPTOR SEWERS WHEREAS, the City of Elgin has heretofore entered into a contract with Clark Dietz, Inc. for the Northwest Area Interceptor Sewers; and WHEREAS, it is necessary and desirable to modify the terms of the contract as is described in Change Order No. 3, attached hereto. NOW, THEREFORE, BE IT RESOLVED BY THE CITY COUNCIL OF THE CITY OF ELGIN, ILLINOIS, that Richard B. Helwig, City Manager, be and is hereby authorized and directed to execute Change Order No. 3, a copy of which is attached hereto and made a part hereof by reference. s/ George VanDeVoorde George VanDeVoorde, Mayor Presented: June 22, 1994 Adopted: June 22, 1994 Omnibus Vote: Yeas 7 Nays 0 Attest: s/ Dolonna Mecum Dolonna Mecum, City Clerk E131* Elcrin Ag enda Item No. S June 3, 1994 TO: Mayor and Members of the City Council FROM: Richard B. Helwig, City Manager SUBJECT: Change Order No.3 with Clark Dietz, Inc. for Construction Engineering Services on the Northwest Interceptor Sewers PURPOSE To provide information to the Mayor and City Council in their consideration of a Change Order No.3 with Clark Dietz, Inc. , for additional construction engineering services on the North Randall Interceptor Sewer - Tollway Crossing. BACKGROUND The City Council awarded an engineering contract to Clark Dietz, Inc. (CDI) at their June 26, 1991 meeting for the preparation of plans and specifications, and inspection and construction engineering services for the two interceptor sewer projects in the northwest area of the City. The two projects are the Big Timber-Tyler Creek Interceptor and North Randall Interceptor. On May 12, 1993, City Council authorized a Change Order #1 to CDI 's contract for design engineering additions in the amount of $37,290.95. These design engineering changes were in conjunction with the Big Timber-Tyler Creek Interceptor Sewer. On August 11, 1993, City Council authorized a Change Order#2 to CDI 's contract for construction engineering additions in the amount of $70,939. 15. These additional services were primarily in conjunction with construction problems and time- extensions incurred on the Big Timber-Tyler Creek Interceptor Sewer. Work on the Big Timber-Tyler Creek Interceptor Sewer has been completed and the final payment is in preparation. Work on the North Randall Interceptor Sewer has been substantially completed with the exception of the crossing of the I-90 Tollway right-of-way. Change Order #3 With Clark Dietz, Inc. June 3, 1994 eulk Page 2 • Since early March, 1994, we have been in negotiations with the project contractor, Abbott Contractors, for the p accomplishment of the tollway crossing. A high water table, loose running sand and the existence of large cobbles has made the crossing a very difficult activity. Coupled with the sensitivity of the high traffic volume roadway, and subsequent strict permit conditions required by the Tollway, the crossing will be a risky and costly undertaking. S After interviewing several pipe auguring and tunnelling contractors, and after conducting extensive soil boring and soil composition and water profile analysis, it has been concluded that a closed-faced tunnelling process will be the least risky tunnelling method with the highest probability of success . We are in final negotiations with Abbott Contractor for the initiation of the tunnelling work. The tunnel will either be 54 or 60 inches in diameter for a distance of approximately 320 feet. We estimate that the work will take up to six to eight weeks to complete. The proposed Change Order No.3 with our project construction engineer Clark Dietz, Inc. , is to provide construction engineering services for the Tollway crossing. Services will include: soil borings and soil testing (already accomplished) , preparation of a final change order with Abbott Contractors for the work, on-site full time inspection during the tunnelling work, and other incidental and related activities, at a cost of $72,200 . FINANCIAL IMPACT Additional moneys, in the amount of $265,000 were budgeted in 1994 to supplement the funding for the North Randall Interceptor Sewer, specifically for the Tollway Crossing. These additional moneys were budgeted in account 392-0000-795 .92-32 project 339526 . The proposed Change Order No.3 is in the amount of $72,200, and will increase the Agreement amount from $423, 130 . 10 to $495,330. 10, as detailed below: Original Contract 6/91 $314,900 .00 Change Order No. 1 5/93 37,290.95 Change Order No. 2 8/93 70,939 . 15 Change Order No. 3 6/94 72,200.00 $495,330 . 10 The actual crossing work will be funded from this account as well. ` Pk LEGAL IMPACT None. Change Order #3 With Clark Dietz, Inc. June 3, 1994 Page 3 RECOMMENDATION It is recommended that City Council approve the Change Order No.3 and authorize the City Manager to execute the Change Order in the amount of $72,200. Respectfully submitted, and /Vaal/Aell‘r R hard B. Helwig City Manager JLK/do CCLARK DIETZ, INC. May 17, 1994 • Mr. James Kristiansen Director of Public Works City of Elgin • 150 Dexter Court Elgin, IL 60120-5555 Re: Engineering Services for Toliway Crossing North Randall Interceptor Dear Jim: • As you requested, we are proposing to provide engineering services for the construction of the Toliway Crossing. Scope of Services CDI will assist the City in the negotiation of a change order with Abbott Contractors to perform the construction of the crossing on a time and material basis. CDI will subcontract with Terracon to perform soil testing and to evaluate the contractor's proposed dewatering system. Any cost for Terracon services in excess of the proposed amount will be an extra to the contract. CDI will assist the City in obtaining a permit from the Tollway Authority to allow construction of the crossing. CDI will provide up to 60 calendar days of Resident Project Representative services. Each day will consist of 12 hours. If the construction period requires that CDI provide more than 60 days of Resident Project Representative services, the cost of those services will be an extra to the contract. If the contractor is required or allowed to work more than 12 hours per day, CDI will provide additional personnel as required and the cost of providing those personnel will be an extra to the contract. CDI will review contractor payment requests and prepare a final change order for the City. i91 �; Clark Dietz.Inc. CITY O F CL's 1 i\! 1817 S.Neil,Suite)00 Champaign,IL 6.1820 ENG!NEERIf a GPT. 217/373-8900 ENGINEERS ARCHITECTS Mr. James Kristiansen May 17, 1994 Page 2 of 2 Estimated Cost of Services Following is our estimate of the cost of the proposed services: CDI Labor $54,000 CDI Expenses 3,000 Terracon Subconsultant 15,200 Total $72,200 We will begin the work of this contract upon receipt of a signed agreement with the City of Elgin. If you have questions concerning this proposal, please call. Sincerely, Clark Dietz, Inc. Charles E. Park cc: Mr. Richard Christensen, CDI r ELGIN, ILLINOIS BIG TIMBER/TYLER CREEK INTERCEPTOR SEWER - DESIGN & INSPECTION CHANGE ORDER NO. 3 SCOPE: This Change Order No. 3 covers the extra work necessary to complete the construction, engineering and inspection for the North Randall Interceptor Sewer - I-90 Tollway Crossing. The Engineer for this project is Clark Dietz, Inc. of Champaign, Illinois . REASONS FOR CHANGE: This Change Order No. 3 is required to reimburse the engineer for construction related engineering and inspection services for the I-90 Tollway crossing. The location of the crossing was changed from that originally included in the construction contract due to the failure on the part of the City to obtain the necessary original easements . As the soil and ground water conditions were substantially changed from the original Tollway crossing alignment, the work in .this Change Order No. 3 was not known and was not reasonably foreseeable at the time of the letting of the contract. SUMMARY OF CHANGES IN CONTRACT AMOUNT: The amount of the contract will be revised as follows : ESTIMATED ADDITIONAL COSTS Additional Construction Inspection . Labor $ 54 ,000 . 00 . Reimbursable expenses 3,000 . 00 Subconsultant (Soils) . Terracon Consultants, Inc . 15,200 . 00 TOTAL CHANGE FOR CHANGE ORDER NO. 3 $ 72,200.00 The present contract with Clark Dietz, Inc. , is for $ 423, 130 . 10 . By reason of this Change Order No. 3, the contract for Design and Inspection of the Northwest Area Interceptor Sewer will be increased in the amount of Seventy-two thousand two hundred ( $72,200 . 00) dollars, the total contract value being Four hundred ninety-five thousand three hundred thirty and 10/100 ( $495, 330 . 10) dollars . CHANGE ORDER NO. 2 May 31, 1994 Page 2 OTHER CONTRACT PROVISIONS: All other contract provisions shall remain the same. Agreed to this N day of , 1994 . Recommended: DEPARTMENT OF PUBLIC WORKS By: Date: Accepted: CLARK DIETZ, INCORPORATED By: d.c.,44.,7(114.,d_./.4-cuo-,-, Title: VC Date: & //-379/ Y Approved: CITY OF ELGIN By: "b. Title: ,r...,_•••••-CS-a Date: ec,/z a /9y