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HomeMy WebLinkAbout2013-049 -. 2013-49 EXHIBIT "A" PUBLIC WORKS DEPARTMENT 300 North"D"Street• San Bernardino• CA 92418-0001 Engineering 909.384.5111.Fax:909.384.5155 Facilities 909.384.5244•Fax: 909.384.5155 www.sbcity.org CONTRACT CHANGE ORDER NO. ONE FILE NO. W.O.NOS. 7903; 7909; 7927 DATE: MARCH 4, 2013 PROJECT: PAVEMENT REHABILITATION ON "K" STREET FROM RIALTO AVE.TO MILL STREET, PER PLAN NO. 12801 (SS11-011); ON MAGNOLIA STREET, PER PLAN NO. 12809 (SS12-005); ON MEDICAL CENTER DRIVE, FROM HOME STREET TO 16TH STREET PER PLAN NO. 12817 (SS11-003). TO: HILLCREST CONSTRUCTION CO. 1467 CIRCLE:CITY DRIVE CORONA, CA 92879 GENTLEMEN: You are hereby compensated for performing the additional work as follows: ITEM NO: DESCRIPTION OF CHANGE COST 1-1 Eliminate two(2)catch basins at"K"Street and Belleview Street. $ (-11,200.00) Due to change in overall quantities(Item 1-1) in excess of 25% of 1-2 the original bid amount, the unit price for two inlets increased from $ 1,460.00 $7,300 to$8,030 in conformance with the project specifications... Eliminate four(4)storm drain connections. Due to quantity changes 1-3 in excess of 25% of the original bid amount, the unit price for one $ (_3,000.00) remaining connection increased from $800 to $1,000 in conformance with the.project specifications. Reduce length of 18-inch RCP storm drain from 82 to 48 lineal feet. Due to quantity changes in excess of 25% of the original bid 1-4 amount, the unit price for the remaining RCP storm drain increased $ (-3,324.00) from $150 to $187 per lineal foot in a conformance with the project specifications. 1-5 Provide slurry backfill for shallow RCP storm drain pipe. $ 1,000.00 Provide additional utility potholing for City initiated revisions to $ 1,343.82 1-6 RCP storm drain on"K"Street(Items 1-1 thru 1-4,above). Various quantity changes for additional ADA ramps, curb, gutter, 1-7 concrete drive approach, and concrete sidewalks at contract unit $ 10,702.70 prices. 1-8 Remove additional asphalt pavement on Medical Center Drive in $ 3,754.00 order to sample_subgrade soil. 1 2013-49 CHANGE ORDER NO.ONE-HILLCREST CONSTRUCTION CO. PAVEMENT REHABILITATION ON"K" ST FROM RIALTO AVE TO MILL ST,PER PLAN NO. 12801 (SS- 11-011);ON MAGNOLIA ST, PER PLAN NO. 12809 (SS12-005); ON MEDICAL CENTER DR, FROM HOME ST TO l6r"ST,PER PLAN NO. 12817(SS11-003). Remobilize workers, equipment and materials after work due to the $ 1-9 City's cash-flow situation. $60 00,00 Increase the contract completion time. Net increase forty (40) 1-10 working days. The contract completion date is revised to May 6 $ 0.00 2013. TOTAL COST CCO#1 $ 60,736.52 JUSTIFICATION:, Eliminate two(2)Inlets at"K" Street and Belleview Street., Item Due to changes in the proposed storm drain system at"K" Street and Belleview Street, No. 1-1 it became unnecessary to construct two (2) Standard 403 catch basins. The contract is reduced by$11,200. Due.:to Change in overall quantities,increase unit price for two catch-basins_from $7,300 to$8,030., 1-2 Due to changes in the proposed storm drain system at "K" Street and Belleview Street and a reduction in quantities, the unit price for the remaining catch basins increased by 10% from $7,300 to $8,030. The increase in the unit cost is in accordance with the project specifications. `Eliminate four(4)storm drain:connections,,due to ivantlty change„increase-unit. price for one remaining connection from$800 to$1,000. Due to changes in the proposed storm drain system at"K" Street and Belleview Street 1-3 and a reduction in the total number of storm drain connections needed from five (5)to four (4), the unit price for the remaining connection increased by 10% from $800 to $1000. The net cost is a contract reduction of$3,000. The increase in the unit cost is in accordance with the project specifications. Reduce._length of 18-inch RCP storm drain. from 82 to:v48 Iineal feet, due, to quantity change,increase unit price for remaining RCP'storm drain from..$150''to' $187 per lineal foot. Due to changes in the proposed storm drain system at"K" Street and Belleview Street, 1-4 the length of required storm drain was reduced from 82 LF to 48 LF; the unit price for the remaining RCP pipe increased by 25% from $150 to $187 per lineal foot. The net cost is a contract reduction of$3,324.The increase in the unit cost is in accordance with the project specifications. Provide slurry backfill to the shallow RCP storm drain., 1-5 Changes in the proposed storm drain system at"K" Street and Belleview Street reduced the amount of storm drain items, but because the remaining storm drain is relatively shallow in depth a slurry backfill was required for adequate protection. Provide additional potholing for City initiated revisions to RCP storm drain on "K"Street. 1-6 Due to changes in the proposed storm drain system at"K" Street and Belleview Street, it became necessary to provide additional investigation of underground facilities. The contractor provided labor and equipment to pothole in the vicinity of the redesigned storm drain on a time-and-material basis. Various quantity changes for additional ADA ramps, curb, nutter, concrete drive 1-7 approach,,and concrete sidewalks at contract unit prices: Quantity changes were necessary due to field conditions,and adjustments made during construction for ADA accessibility and other accommodations. 2 2013-49 CHANGE ORDER NO.ONE-HILLCREST CONSTRUCTION CO. PAVEMENT REHABILITATION ON"K"ST FROM RIALTO AVE TO MILL ST,PER PLAN NO. 12801 (SS- 11-011);ON MAGNOLIA ST,PER PLAN NO. 12809 (SS12-005); ON MEDICAL CENTER DR,FROM HOME ST TO 16TH ST,PER PLAN NO. 12817(SS 11-003). Rem`oveadditionai:aspl'halt pavement inaorder:to.samplesuberadesoli. Item In order to determine the quality of the underlying soil on Medical Center Drive\,and to No. 1-8 determine final requirements for asphalt paving, additional asphalt had to be removed. The contractor performed this work on a time-and-material basis. Remobilize:workers.,egr ipmentt and,materials due to'stop in work. The contractor had started work on this project, incurring significant costs associated with the approved scope of work through June 2012. Payment was delayed due to the City's financial situation. The contractor removed workers, equipment and materials 1-9 from the project site pending resolution of payment." On December 10, 2012, the contractor was paid $209,894.52 for all work completed to date. The contractor has agreed to re-mobilize in order to complete the work, and pursuant to the provisions of the project specifications, compensation for re-mobilization is allowed. The contractor's additional mobilization cost amounts to an additional $60,000, which is consistent with the original bid amount, increase the contract,completion.`time:Net increase fortv.4401"working days. The contract completion date is revised to May 6,2013. 1-10 The accumulated delay for the contract changes and the stopping of work warrants an increase of forty(40)working days to the contract. SUMMARY OF CONTRACT COSTS The estimated revised contract cost is as follows: Original Total Bid Amount ............ ...... ........ ,........ .... .: .............................$ 898,743.20 Contract Change Order No.One..................'.... ...... ......... . ....................$ 60,736.52 Revised Construction Contract Cost. . ... . . • . .., . . . . . . . . . .., ... ..............$ 959,479.72 Additional time to complete Contract due to this Change Order 40 Working Days The current change order represents an increase of 6.75 % above the original contract amount. HILLCREST CONSTRUCTION CO. CITY OF SAN BERNARDINO CONTRACTOR PUBLIC WORKS DEPARTMENT Accepted Approved By: %, ,C.L 17�_ By: e ' ROBERT EISENBEISZ Title: ("pl O �{��—, /�,C jI,F� ��_ Interim Director of Public Works Date: / �. Date: 3//q//3 3 1_x-(3_ _ MCC Date Approved: March 4.2013 Agenda Item No. g-,3 3