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HomeMy WebLinkAbout13-Development ServicesCITY OF SAN BERNARDINO - REQUEST FOR COUNCIL ACTION From: Valerie C. Ross, Director Subject: Authorize the Director of Development Services to execute Dept: Development Services Contract Change Order No. One with L.A. Builders, Inc. for Segment Date: July 9, 2008 3 Sewer Line Relocation I-215 (SW08-08), per Project Plan No. File Nos. 3.7747 11916. MCC Date: August 18, 2008 Synopsis of Previous Council Action: August, 2006 The Mayor and Common Council approved FY 2006-07 CIP Budget. July 16, 2007 The Mayor and Common Council adopted Resolution awazding a contract to L.A. Builders, Inc. for Segment 3 Sewer Line Relocation (SW08-08) per Plan No. 11916. Recommended Motion: Authorize the Director of Development Services to execute Contract Change Order No. One with L.A. Builders, Inc. Inc. for Segment 3 Sewer Line Relocation I-215 (SW08-08), per Project Plan No. 11916. ~~.yyG ~aca- Valerie C. Ross Contact Person: Robert Eisenbeisz, City Engineer Supporting data attached: Staff Report & Change Order No. 1 FUNDING REQUIREMENTS: Amouut: $ 354.558.73 Council Notes: Phone: Ext. 5203 Ward: 3 242-362-5504-7747 Segment 3 Sewer Relocation along the I-215 Freeway (S W08-O8) Source: (Acct. No.) Acct. Description: Finance: Agenda Item No. ~ ~' 5~~~~~ CITY OF SAN BERNARDINO - REQUEST FOR COUNCIL ACTION STAFF REPORT Subject: Authorize the Director of Development Services to execute Contract Change Order No. One with L.A. Builders, Inc. Inc. for Segment 3 Sewer Line Relocation I-215 (SWO8-08), per Project Plan No. 11916. Background: In February of 2008 Caltrans began construction of widening the I-215 Freeway through the City of San Bernardino. Segment 3 is the first phase of the I-215 widening and it extends-from Orange Show Road to Rialto Avenue. Caltrans determined that certain City owned sewer mains in Inland Center Drive, "I" Street, Walkinshaw Street, and several alleys were in conflict with the freeway project and they needed to be relocated. Under the terms of Utility Agreement No. 19359, dated June 29, 2005, between the City and Caltrans, Caltrans agreed to reimburse the City for all costs associated with relocation of the conflicting sewer facilities. Under the utility agreement, Caltrans will reimburse the City for all costs associated with the relocation of conflicting utilities regarding State Route 215 up to $4,171,365.00, which reflects the estimated cost of construction with contingencies based upon the approved plans, and specifications. In addition to this contract there were two other contracts awarded for sewer relocation work all well under the amount agreed upon under the utility agreement. Pursuant to the request of Caltrans and in accordance with the Utility Agreement No. 19359, the City prepared plans and specifications for three separate phases and bid each phase separately. The first phase of the Segment 3 sewer relocation effort included relocation of the sewer main along "I" Street between Mill and Inlapd Center, and various adjoining alleys. On July 16, 2007, the Mayor and Common Council approved a Resolution to awazd a contract with L.A. Builders, Inc. for Segment 3 Sewer Line Relocation I-215 (SW08-08), per Project Plan No. 11916. This project with L.A. Builders, in general, consisted of the demolition of existing sewer manholes, installation of new sewer mains, the reconnection of existing sewer laterals and the repair or replacement of existing roadway improvements. When the contractor was preparing the trench and subgrade for final pavement, saturated soil conditions were encountered, such that proper compaction could not be achieved. Complete removal of the saturated subgrade material was required to achieve proper compaction and soil stabilization. The removed material was replaced with aggregate base material. As a result, the contractor provided an additiona1778 tons of crushed aggregate base material. Failure to provide proper compaction and a stabilized subgrade would have resulted in unacceptable pavement failure along the trench line. The cost for providing proper compaction and stabilizing the subgrade was $228,745.34. z o~nsnoosizsorM CITY OF SAN BERNARDINO - REQUEST FOR COUNCIL ACTION STAFF REPORT -Continued Additionally, Caltrans requested complete removal of eight manholes that were not previously identified. Caltrans requested removal of these eight manholes because they were located within the ultimate Caltrans right-of--way after completion of the freeway widening. The cost to completely remove the eight manholes was $18,400. The additional remaining items of the change order include additional costs related to the installation of 4 new manholes, and the relocation of an existing sewer mainline and lateral outside of Caltrans' right of way. The removal of sewer encasements to allow for sewer connection, the removal of concrete roadbed that was buried under the roadway but not identified on plans, and connecting to the sewer at Esperanza Street. The azea azound the manhole at Inland Center Drive and "I" Street failed, causing the contractor to excavate and recompact the azea on an emergency basis. The additional items total $107,413.39 A substantial portion (65%) of the costs contained in the change order is attributed to correcting the saturated soil conditions in the subgrade and moving the eight manholes at the request of Caltrans. Caltrans will reimburse these change order costs in accordance with the utility agreement previously mentioned. Financial Impact: Q The revised estimated project costs are as follows: TOTAL Ori final Contract Amount $ 867,888.00 Contract Chan a Order No. One $ 354 558.73 Revised ContraM Amount $1,222 446.73 Administrative Costs $ 130,184.00 Total Pro'ect Coat = $ 1 52 630.73 This change order represents a net increase of 40.85% in the contract amount. Recommendation: Authorize the Director of Development Services to execute Contract Change Order No. One with L.A. Builders, Inc. for Segment 3 Sewer Line Relocation I-215 (SW08-08), per Project Plan No. 11916. Attachments: Change Order No. One 3 07/282008 12:50 PM V San DEVELOPMENT SERVICES DEPARTMENT 300 North "D" Street • San Bernardino • CA 92418-0001 Planning & Building 909.384.5057 • Fax: 909.384.5080 Public RorkslEngineering 909.384.511] • Fax: 909.384.5155 www.sbcity.org CONTRACT CHANGE ORDER NO. ONE FILE NO. 3.7747 W.O. N0.7747 DATE: August 4, 2008 PROJECT: I-215 SEGMENT 3 SEWERLINE RELOCATION, PER PROJECT PLAN NO. 11916. TO: L.A. BUILDERS, INC. 15635 SATICOY STREET, STE. H VAN NUYS, CA 91406 GENTLEMEN: You are hereby compensated for performing the additional work as follows: ITEM NO: DESCRII'TION OF CHANGE COST 1-1 Stabilize Saturated Materials under Ctrrb & Gutter $ 3,129.20 1-2 Install 4 new Manholes (4 @ $5,500) $ 22,000.00 $ 6,569.03 $ 18,985.00 1-3 Remove existing Sewer Encasement at Sta. 24 + 00 $ 5,267.20 1-4 Relocate existing House Lateral $ 3,878.00 1-5 Remove Sewer Encasement at Lewis Alley $ 3,022.64 1-6 Remove existing Sewer in Cal Trans' Right-of--Way $ 2,227.80 1-7 Remove existing Concrete Roadbed below Asphalt $ 2,718.00 i-8 Tie in Sewer at Esperanza $ 9,276.56 $ 10,734.72 1-9 Realign existing Sewer Mainline at Sta. 26 + 64 $ 9,433.47 1-10 Additional Base Rock per Bid Item No. 4 (778 tons ~ $22) $ 17,116.00 1-11 Per Cal Trans -completely remove 8 Sewer Manholes (8 x $2,300) $ 18,400 00 1-12 Additional T&M to Stabilize Trench (unsuitable materials) $ 208,500.14 t CHANGE ORDER NO. ONE - L.A. BUILDERS, INC. 1-215 SEGMENT 3 SEWERLINE RELOCATION, PER PROJECT PLAN NO. 11916 1-13 Remove Encasement from Sewer Main at Sta. 25 to 00 $ 7,300.97 Excavate & Recompact Sewer Manhole of Inland Center Dr. & 5'" $ 6 00 000 1-14 "I" Street , . TOTAL COST CCO #1 $ 354,558.73 JUSTIFICATION: Stabilize Saturated Materials under Curb & Gutter Item The contractor was required to remove curb & gutter during construction of the sewer No. 1-I mainline. The subgrade beneath the curb & gutter was over-saturated. It was necessary to stabilize the existin sub ade rior to re lacement of the curb & utter. Install a new Manholes 1-2 It was necessary to install four (4) new manholes to relocate outside of the Caltrans' right- of-wa . Remove existing Sewec Encasement at Sta. Z4 + 00 1-3 A[ Sta. 24+00 the existing sewer was encased with concrete. It was necessary to remove this concrete encasement to tie into new sewer mainline. Relocate existing House Lateral 1-4 [t was necessary to relocate a sewer lateral on Congress Street such that the lateral would no lon er be in Cal Trans' ri ht-of-wa . Remove Sewer Encasement at Lewis Alley 1-5 It was necessary to remove the concrete encasement at the Lewis alley to allow for tie-in of new sewer mainline. Remove existing Sewer in. Cal Trans' Right-of--Way 1-6 It was necessary to remove existing sewer mainline from the Cal Trans' right-of--way at the end of Es eranza Stree[. Remove existin,; Concrete Roadbed below Asphalt 1-7 At Sta. 26+66 it was necessary to remove the existing concrete roadbed that was buried underneath the roadwa . Tie in Sewer at Esperanza 1-8 The existing sewer at Esperanza St. was 1.3" higher than shown on the plans. It was necess to excavate an additiona130' to lower the sewer main. ReaBgn existing Sewer Mainline at Sta. 26 + 64 At Sta. 26+69 it was necessary to remove the existing concrete encasement and lower 1-9 the sewer lateral by 18" from the mortuary to meet the alignment of the new sewer main. Additional Base Rock per Bid Item No. 4 (778 tons (g? $22) 1-10 It was necessary to provide an additional 778 tons of C.A.B. to stabilize the mainline trench. Per Cal Trans -completely remove Sewer Manholes (38 x $2,300) 1-11 Cal Trans re uest that 3 manholes be com letel removed from their ri ht-of-wa . Additional T&M to Stabilize Trencb (tmsuitable materials) During construction the contractor temporarily paved the sewer mainline trench. As the 1-12 contractor was preparing the trench for final pavement, the material was unsuitable and proper compaction could not be achieved. Materials were removed and replaced with C.A.B. to stabilize the sub rade. This work was com fete at a time and materials basis. Remove Encasement from Sewer Main at Sta. 25 + 00 1-13 It was necessary to remove-the concrete encasement at Sta. 23+00 to install the new sewer mainline. CHANGE ORDER NO.ONE - L.A. BUR.DERS, INC. I-215 SEGMENT 3 SEWERL[NE RELOCATION, PER PRWECT PLAN NO. 11916 V SUMMARY OF CONTRACT COSTS The estimated revised contract cost is as follows: Original Bid Amount ...........................................................$ 867,888.00 Contract Change Order No. One .................................................$ 354.558.73 Revised Construction Contract cost ..............................................$ 1,222.446.73 Additional time to complete Contract due to this Change Order .......................... OWorking Days This change order represents 40.85% of the original contract amount. L.A. BUILDERS, INC. CONTRACTOR Accepted By: CITY OF SAN BERNARDINO DEVELOPMENT SERVICES Approved sy: Title: Date: Date: Date: Date: VALERIE C. ROSS Director of Development Services Approved by Mayor and Common Council Date: August 18, 2008 Item No.