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Home My WebLink About4.08 Dubin Blvd Widening #01-10CITY CLERK File # ❑R;6k51-315 AGENDA STATEMENT CITY COUNCIL MEETING DATE: April 15, 2003 SUBJECT: Change Order Authorization — Contract No. 01-10, Dublin Boulevard Widening Project from Village Parkway to Sierra Court/Civic Plaza Report Prepared by: Lee S. Thompson, Public Works Director ATTACHMENTS: 1. Change Order No. 3 2. Change Order Summary RECOMMENDATION: Approve Change Order No. 3 in the amount of $126,358.75 FINANCIAL STATEMENT Original Project Contract Amount: $ 3,063,859 Project Bid Contingency Amount: $ 306,386 Total Construction Budget: $ 3,370,245 Project Contingency Amount: $ 306,386.00 Total Approved Change Orders to Date: ( 45,595.57) Change Order No. 3: ( 126,358.75) Remaining Project Contingency Amount: $ 134,431.68 DESCRIPTION: The Dublin Boulevard Widening Project is currently underway and is now approximately 40% complete. During construction of the Alamo Canal rock slope protection, it was discovered that the quantity of quarter -ton rocks used for the project was significantly more than the estimated quantity of Bid Item No. 86, "Rock Slope Protection (Quarter -Ton Rock)". The original estimated quantity was 140 cubic meters while the final quantity was measured at 578 cubic meters. This was due, in part, to additional erosion that occurred between the time of the survey at design and the time of construction. In addition, supplementary earthwork and slope grading were necessary to repair the failed creek slopes due to heavy winter storms. The amount of earthwork required on both east and west slopes was also underestimated in the contract documents. Adjustment in compensation is based on force account work as described in the attached Contract Change Order No. 3. For this work, the Contractor shall be paid the amount of $126,358.75 out of the project contingency fund. Since the amount of Change Order #3 exceeds the $25,000 authorization limit granted to the City Manager, it is necessary for the City Council to approve this change order. Staff recommends that the City Council approve Change Order No. 3 in the amount of $126,358.75. COPIES TO: Granite Construction ITEM NO. • g:\miscproj\DBW VP to Sierra\construction\agst CC03 Authorization CITY OF DUBLIN ~ ~o0 c,vtc PLAZA, DUBLIN, CALIFORNIA 94568 .~ (92S) 833-6630 a. (92S] 829-9248~AX CONTRACT CHANGE ORDER NO. 3 (rev.) DATE: February 21,2003 (rev.) PAGE: 1 of 1 · PRO;IECTIROAD: DublinBoulevard Widerling '" CONTRACT NO: 0~-10 STPL 5432 (006) TO: Granite Construction, You are hereby directed to make the herein described changes from the plans and specifications or do the following described work not included in the plans and specifications on this contract. NOTE: This change order is not effective until approved by the City of Dublin Public Works Director. The description of work to be done, estimate of quantities, and prices to be paid are segregated between additional work at contract pdce, agreed price, and force account. Unless otherwise stated, rates for rental of equipment cover only such time as equipment is actually used and no allowance will be made for idle time. All other costs are non-compensible. This change order is requested by the City. I. Modified Bid Item at Contract Price: Bid Item No. 86,"Rock Slope Protection (1/4T) "quantity of 140 CUM shall be adjusted to reflect the actual field measured quantity per documented field conditions and to include additional earthwork and grading necessary to construct the additional RSP embankments per actual field conditions. A. Add the Following: % Tonne Rock Slope Protection (west embankment): 578 CUM @ $110/CUM = $ 63,580.00 (refer to Daily Extra Work Report No. 289503, item's 9-14) B Add the Following: Provide additional earthwork and slope grading for the westerly embankment in the amount of the Lump Sum price of $68,049.49 necessary to meet existing conditions and set the revised keyway and slope areas including importation of fill material, re-grade slope, excavation of keyway to set the additional RSP to proper limits and off- haul of unused material complete in place and as directed by the Engineer. (Refer to Daily Extra Work Report No. 289503, item's 3-8 and 15) I @ Lump Sum = $ 68,049.49 C. Adjustment in Compensation: Adjustment in compensation of Bid Item No. 86 for placement on the east embankment in consideration of Section 4- 1.03B of the Standard Specifications for an estimated increase of 54 CUM beyond the allowed 25% increase. This adjustment adjusts the unit price bid to $129.73 per CUM. Add the following: % Tonne Rock Slope Protection (east embankment): 54 CUM (~ Lump Sum= $ 4,519.26 (refer to Daily Extra Work Report No. 208610) D. Delete. the Following: Bid Item 86:'¼ Tonne Rock Slope Protection" 89 CUM @ $110/CUM = $ -9,790.00 (east embankment): To[al Amount $126,358.75 ! Al'i work §hall be performed in accordance with Special Provisions, the applicable Standard Plans anted ~ifications, as verified by the City and/or as authorized by the Engineer. No additional compensation shall be made per this ~hange order for said additional work. ESTIMATED COST INCREASE: $126,358.75 BY REASON OF THiS CHANGE ORDER, THE TIME OF COMPLETION WILL BE ADJUSTED: ~ 18 WORKING DAYS. SUBMITTED BY: APPROVAL REC~M.~i~F~NDED BY: ~VED B// contractor, have given careful consideration to the change proposed and hereby agree, if this proposal is approved, that we will provide all equipment, furnish all materials, except as may otherwise be noted above, and perform all services necessary for the work above specified, and will accept as full payment therefor the prices shown above. Accepted: Dale A--[ '~/o ~'~ Contractor: Granite Construction, Inc Signed By: Title: If the Contractor does not sign acceptance of this order, his/her attention is directed to the requirements of the specifications as to proceeding with the ordered work and filing a written protest within the time therein specified. CHANGE ORDER SUMMARY .~ ~ DATE: February 14, 2003 PROJECT NAME: Dublin Boulevard Widening - Village Parkway to Sierra Court/Civic Plaza ClP #: 96920 CONTRACT NO: 00-10 CONTRACTOR: Granite Construction, Inc. PERCENT COMPLETED: 42% CONTRACT AMOUNT: $3,063,859.00 APPROVED BUDGET AMT: $3,370,245.00 (contract amount + 10% contingency) CHANGER ORDERS: CHANGE ORDER #1 $923.93 CHANGE ORDER #2 $24,500.00 CHANGE ORDER #3 $126,358.75 CHANGE ORDER #4 $3,826.00 CHANGE ORDER #5 $2,015.00 CHANGE ORDER #6 $3,473.00 CHANGE ORDER #7 CHANGE ORDER #8 CHANGE ORDER #9 CHANGE ORDER #10 $3,117.64 CHANGE ORDER #11 $1,260.00 CHANGE ORDER #12 $6,480.00 TOTAL OF CHANGE ORDERS: $171,954.32 CURRENT CHANGE ORDER DESCRIPTION: [ ADJUSTED CONTRACT AMOUNT: $3,235,813.32 PROGRESS PAYMENTS MADE: PAYMENT #1 $ 83,245.00 PAYMENT #2 $ 48,025.00 PAYMENT #3 $355,319.25 PAYMENT #4 $246,247.75 PAYMENT #5 $126,817.00 PAYMENT #6 $63,316.00 PAYMENT #7 $120,965.85 PAYMENT #8 $333,568.00 PAYMENT #9 PAYMENT #10 TOTAL PROGRESS PAYMENTS: $1,377,503.85 REMAINING BALANCE ON CONTRACT: $1,858,309.47 RECOMMENDATION: APPROVED '~ APPROVED APPROVED DENIE,p DENIED DENIED SIGNATURES: (.. Public VV'~ector City Manager Mayor