R2011-131 APPROVING CONTRACT AMENDMENT

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SPECIAL OPERATIONS GROUP(GISOG) 3081nduwW Drive Griffith IN Global (PH)219-924-6755 (FAX)219-9247505 Infrastructure Page 3 GI Special Operations Group,(LC proposal number. Change Order#15-Rev 42 I lance)[Professional Services Inc. Lake Decatur Darn Repairs-City Project 09-02 C►ante Ordtr 15.E Proiect Outline:Toraue Tube RenaimOry Ice Blasting and Paintipa The damage on the upstream side of the torque tube was exposed after the South Bascule gate on the take Decatur Dam was dewatered.The torque tube surface is damaged from the bolts holding down the hortzontal rubber seal,and the old rubber seal being installed under the beast plate,making the bottom clamp bar 5t8" lower than the same bar on the North gate.This damage is mostly paint feihac with some gouging,and resting of the torque tube-This condition was documented and discussed with Hanson during the site visit.The area was addressed in RFI 0030.As per HI)R's recommendations,dated 815111,the torque tube on the South gate will be dry ice blasted to achieve a SSPC-SP 1 I surface preparation.All damaged areas will be repaired with the pre-approved epoxy filler,and painted with the pre-approved paint.. Change Order 15.E Prosect Costs:Torque Ink Repairs-pry lee Rimini and Painting This additional work will be billed at the 2011 IDOT Forced Account basis. Field Services Lake Decatur Dam_-Torque Tube Repairs-D Ice Blaxt*g and Painting Item Rate II.O.M Qt . Mink u Days cost Global Cost-1.0bor esi. Actual Per Hr Actual 35% 1 I 534.859.63 Global Equipment est. Schedule Per Da) Actual N/A 11 $3,188.20 1"h3 lie Bl sting- rest Artrarl Per Hr Actual 5% 7 55-3.00040 Steel Seam FT910 hiller est. 5186.51 Total 5 15% ?VIA $1,072.43 Aura-Plate 235 Paint est. S252.06 Total 5 15% NA $1,449.35 Mi sePainuppoxt•supplies est. $500.00 Total 1 15`✓o NIA 5575.00 3rdpattvequ4wrent est. $21,967.18 Total 1 5% NIA $23.065.53 Rondsilnrurance est. $4,338.52 Total 1 10% NIA $4,772.37 Chan a Order#15.E IDOT 2611 Forced Account Estimated(a} S121,f8252 Change Ordtr#15.F Proiect Outline:Armature Plates As per the recommendation from HDR and Hanson after the field visit,the inboard and outboard armature plates shall no longer he replaced.The outboard armature plate(South side of the South bascule Rabe)does not have slots to be able to remove them as stated in the bid specs..The steel wicornpasses the entire torque tube.The inboard armature plate(North side of the South bascule gate)is not a stand alone plate.The entire center pier is encased in a i"steel shell that wraps around the front The plates shall bre stripped of the current coaling,cleaned and recoeted with the pre-approved paint.Any areas of pitting/gouging in the plates shall be repaired prior to coating with the pre-approved epoxy filler. Chauae Order#t5.F Proleet Cents:Armature.Plates Credits:We have listed the labor credit for the bid time to replace the armature plates(same credit as outlined in Change order#4).7'he alternative refurbishment scope to dry ice blast,till voids with tiller putty,prime and paint are listed below and will be billed at the 2011 IDOT Forced Account basis. ,Rdd Services Lake Decatur Daae-Anaamre Plates 11M Rate U.U.M Q(3' Maukll9 Ding Cost Global C64-1.abor est. Actual Per lir Actual 35% 3 S10,496.79 Global Equipment est, Schedule Per Day Actual N/A 3 $1.248.02 Dry ice 8/avtiW- est Actual Per fir Actual 5% 2 $24,000.00 Steel Seam 1,7910 hiller est. 5186.51 Total 1 15% MA $214.49 Pura-Plate 235 Paint est. $252.06 dotal I 15% N:A $308.52 3rd party equipment est. $5,991.05 Total 1 5% N,'A $6,290.60 Bondsilnsuranee est $1,295.20 Total 1 10% AM $1,424.72 Credit for labor not used from original bid `1 7,=' Chane Order#15.F [DOT 2011 Forced Account Estimated $39,200.93 Global Infrastructure Spsaal Operations Group,LLC. 308 Industrial Drive,GrI th,IN 46319 PH 219-9248755.FAX 219-924-7505