The URL can be used to link to this page

Project 171 - Agenda Staff Reports - 2008-02-18 X549. ITgRr Y1 Costa Mesa Sani tayrr'a,^/Y District Ict y s A 1U 1 w. wo. E�, . an Ineepencent Special District Memorandum To: Board of Directors From: Robin B. Hamers Manager/District Engineer Re: Project #171 — Irvine Pumping Station Force Main Replacement — Phase I Recommendation to Award Construction Contract Date June 17 2008 District Staff recently received plans from the County of Orange Resources Development and Management Department (OC RDMD) for the Irvine Avenue widening project showing expansion of the project to include 450 feet northwesterly along Mesa Drive from Irvine Avenue • When the District recently completed construction of the Irvine Pumping Station relocation project, the limits of the existing force main (pressure sewer line) replacement coincided with the road widening project limits, or just beyond the intersection of Irvine Avenue and Mesa Drive However had the District received notice of the expanded limits of the County's project, a new section of force main in Mesa Drive would have been included in the pumping station relocation project. Currently the County's contractor has begun the road widening project and County representatives have stated their preference for the District to replace the existing force main now with the new force main in order to avoid requesting to excavate in a newly paved street at a later date Because of the late notice from the County for this portion of the road widening project, and because of the necessity to replace the 450 feet of existing sewer force main with new force main the following is submitted for Board consideration. The Board of Directors hereby finds it is in the public's best interest to dispense with the formal bidding procedure in order to construct 450 feet of sewer force main immediately for the following reasons: • Protecting our community's health by providing solid waste and sewer collection services. www.crosdca.gov Findings: • 1 The Orange County RDMD will be rehabilitating 450 feet of Mesa Drive resulting in a street cut moratorium where the District cannot replace the existing force main for at least five years. 2. Orange County RDMD only recently made the District aware of the Mesa Drive road plans, thereby negating the ability of the District to prepare in advance for this construction. 3. The size of the existing force main is 10-inch diameter while the correct ultimate size is 12-inch diameter 4 The existing force main is 10-inch cast iron pipe, installed in 1969 During the 1960's, cast iron pipe was typically installed without an exterior lining of polyethylene wrap and without an interior coating, making it likely that the existing force main has severe exterior and interior corrosion. 5. Without the ability to replace this section of line the District risks the potential to have a pipeline failure and SSO 6. The CMSD Engineer's Estimate attached hereto is substantially equal • to the construction cost bid received from GCI Construction, Inc. also attached hereto GCI is an excellent pipeline construction company and is under an Emergency Services Agreement with the CMSD GCI has successfully worked with the District in the past. 7 This construction was brought forth to the Sewer System Committee on June 11 2008 and received support from Directors Monahan, Schafer and President Perry For the reasons above, it is recommended the Board of Directors award a construction contract to GCI in the amount of $136,840 It is also recommended the Manager/District Engineer be authorized to provide engineering, inspection, and construction surveying at the normal hourly rates, not to exceed $17,500 to accommodate the construction work. • e-hlLi(tileS t9rtrI AM- ATTACHMENT 2 CONSTRUCTION COST ESTIMATE • 6/11/2008 COSTA MESA SANITARY DISTRICT Contract Duration: I Month(s) (MO) 4 Week(s) (WK) IRVINE PUMPING STATION SFM REPLACEMENT(PHASE 01) 4 (DAY)20 PROJECT NO.171 160 Hours (HR) Worksheet: Engineer's Estimate of Construction Cost s jxj ..4' 42J z if .: ' •Y •' N te T .1. � 5m ld mi-•1 }S `C, -a,'. ° •.tiS ,., , 1 9a . ,.4„.x` ' :2 1 Mobilization,demobilization,&cleanup 1 LS 5,000 5,000 1 LS 2,500 2,500 2 Bonds&insurance 10,000 10,000 3 Traffic control - 1 1 IS LS 2,000 0,000 LS 4 Geotechnical services during construction LS 29,340 29,340 _ 5 Sewage flow diversion(per detail below) 45 I I LT 150 67,500 6 Remove existing 10-inch Cl force main and install 12-inch PVC C900(CL 200)force main 7 Excavation and safety measures easures(trench shiel ds&shoring) .r S 45 0 LE 8 7.50 0 f #4 Y.I! V x I X r x. •r, tc c zi -047 .5 i r .cF � fx .riC 1 �" ni =icri xz stew::4 r l r, .s. " , v . t - v "j { ( 9 � p r ti i VP i ,: -f Y s "ns q x �. ye ; 3 `lit r A n t n'4Y ( , �z3f ,lxe t.. i iwd x-r4d,i:11::•J r �L= w fri. 4?' t Z'Y3 ct 41.41A1 sx....s.�g ..t" Notes: I) Sewer unit cost includes excavation,dewatering,pipe material&mtallation,and trench restoration. 2) Fees may vary due to unknown information,codes,and requirements of governing agenies. 3) Construction labor hours and fees based on night work and requirements. • r> r. h i.w ' wg'' ^� 4 d . K.n y ige, . 'F ., $ 4Vk D =Lo S .yam"i : F ,+ 4 3� ie w,,,A ?^: : S A : i ' e i.b.,. ^C! t ..1 &U I t Yl*' t.41,r 7f,-....s 5 Sewer Flow Diversion 1 LS 29,340 29,340 1 1S 10,000 10,000 Bypass pump company mobilization&setup Pump ill(camifi 1 MO 5,000 5,000 - gal,self priming,trailer mounted(C)=500 gpm=L l2 cfs) 5,000 5,000 Pump#2(carrrifigal,self priming,trailer mounted(Q IMO=500 gpm=1.12 cfs) Discharge 1,500 3,000 line(HDPE)assuming two bypass setups(meximum 1500'length each) 2 Eat _ - _ 1 MO 1,000 1,000 Suction line(Steel)&valves 1 MO 1,500 1,500 Emergency phone dialer(cellular)&float system 1 MO 3.840 3,840 Fuel consumption(assume 24 hr operation at 2 gaVhr at S4/gal for diesel) • COSTA MESA SANITARY DISTRICT File: CMSD171 Budget_Ph01 05I908.xIs prinF. 6/11/2008 Worksheet: CMSD Engineer's Cost Estimate Page 1 of 14 Joseph SInacod From: David Toon[dandy @gciconatmceo coml Sent: Fnday,May 30.20084152 PM To Jo eph Sin Subject: eid52908MSDxts • Attachments:imago001 ipg GCI GO CONSTRUCTION, INC. �tee+ License No. 755356A / 245 Fischer Ave.Suite B-3 C7NSTRUCTION,INC Costa Mesa, CA 92626 Phone(714)957-0233 Fax(714)540-1148 Attn:Mr.Joseph Sinacori 5/30/08 4:51 PM Costa Mesa Sanitary District Mobile Phone:949.315.5075 E-Mail:joe.sinacori©surfsidece.com Project: PUMP STATION FORCE MAIN REPLACEMENT (Per Plans prepared by Dated) ITEMS UNIT TOTALS 1 MOBILIZATION 1 LS $8,000.00 $8,000.00 2 TRAFFIC CONTROL 1 LS $8,500.00 $8,500.00 3 BY PASS LINE 1 LS $33,000.00 $33,000.00 4 TIE IN AT THE MANHOLE 1 LS $2,400.00 $2,400.00 5 TIE IN AT THE EXIST LINE 1 LS $4,100 00 $4,100 00 6 GRIND AND CAP AC 2200 SF $3.20 $7,040.00 7 REMOVE 10'CAST IRON PIPE 450 LF $29.00 $13,050.00 • 8 INSTALL 12'C900 450 LF $135.00 $60,750.00 GRAND $136,840.00 Terry Gillespie, President (714)957-0233 x-218 Date Excludes: Inspection,Permits,Fees,Testing,Bond,Survey,Night Work,Construction water,Demo I Cleanng 8 Grubbing,Dewatering, Rough Grading,Export or Import of Dirt,Rock Blasting/Handling,Joining to Building/Roof Drain,Subdrains, Coating or Waterproofing interior/exterior of Manholes or Catch Basins,Raising MH/Valves/grates/Inlets/Drains, Concrete or AC Removal or Replacement, Landscape or Irrigation Removals or Replacement,SWPPP plans or Implementation, Erosion Control(except to protect our own work), and any and all items not specified in the Bid Proposal above. Notes: Retention withholding will be 10%max.Above Pnce good for 30 days. All payment&retention held must be paid within 35 calendar days after completion of our work. Above price based on 1 mobilization.Additional cost will apply for any additional mobilization. All items of work listed above to be done concurrently,Otherwise additional cost will apply. All dirt spoils,inc.Utility trench Spoil,to be left on site near trench. Removal and/or relocation of the existing utilities by others. • `iCn 1 nnn4