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Home My WebLink AboutCO 3 CAG-17-108, CO #3-18 CITY OF RENTON { Public Works Department Nro� CONTRACT CHANGE ORDER AGREEMENT CONTRACT: CAG-17-108 Harrington Ave NE Green Connections Stormwater Retrofit C.O.#3 Project-Phase 2 SWP-27-3731 CONTRACTOR: DPK,Inc. SUMMARY OF PROPOSED CHANGE—Estimated Change in Bid Item Quantities This change order is for changes in estimated bid item quantities used for construction as shown on the attached Estimated Change in Bid Item Quantities spreadsheet.The original bid item quantities and contract amounts are shown on the left side of the spreadsheet and the Estimated Revised Quantities and Change in Total Contract Amount are shown on the right side. The spreadsheet shows all of the bid items and the incremental increase or decrease of estimated bid item quantities used during the project compared to the original estimated bid item quantity included in the construction contract. The most significant increase is for bid item A-22 Crushed Surfacing Based Course (CSBC).The construction contract plans and specifications did not require the placement of crushed rock under new sidewalks,curbs, and gutters per the Standard Plan No. 102 dated 11/21/14,which was in place when the contract was awarded on 07/17/17.Standard Plan No 102 was then revised and approved on 10/9/17 to require the placement crushed rock under the curbs,gutters,and sidewalks.The additional quantity of CSBC was needed to comply with this newly approved City Standard Plan. .4` This change order is for the estimated revised quantities used for bid item A-22,CSBC and other bid items.The • contractor's request for additional working days is currently being evaluated for change order no.4. The Estimated Revised Quantities shown in the Bid Item Quantity spreadsheet are estimates.The final quantities may vary from the quantities shown due to actual amounts of materials used,quantity measurements,and force account costs,as reviewed and approved by the city.The final amount paid to the contractor may be less than the Estimated Total Change Order Cost. ESTIMATED TOTAL CHANGE ORDER COST= $30,300.62 Additional Working Days added to the Contract for this Change Order: 0 ORIGINAL CONTRACT AMOUNT CURRENT CONTRACT AMOUNT ESTIMATED NET CHANGE ESTIMATED CONTRACT THIS ORDER TOTAL AFTER CHANGE $904,036.00 $954,157.34 $30,300.62 $984.457.96 SIGNATURES: / YI /,��' �` /6/- „6-,(.. � Contractor: 1 '/ /!!'. Date: G ;. ' < r,° �✓ Project Manager: „-,(.. /� / ,Itp,, Date: , /4 f f �/C Approved By: 1/ f 4 c. csCJ J , L. Date: t3//‘ f i 9 Lys Hornsby,Utility Systems Director / Approved By: • 4,g-G 4 ji O7/77/ -1 Date: 3/ l 7 1/1 f Gregg Zimmerman,PW Administrator Approved By:+�G� a� Date: SI/i)' g hane Moloney,City Attorney H:\File Sys\SWP-Surface Water Projects\SWP-27-Surface Water Projects(CIP)\27-3731 Harrington Ave-Ph_lI\1600 Construction\1606 Change Orders\Change Order\CO-3\CO 3-Increased Quantities CAG-17-108 Harrington Ave NE Green Connections Stormwater Retrofit Project-Phase 2 SWP 27-3731 Change Order#3 Estimated Change in Bid Item Quantities Estimated Estimated Estimated Change Bid Item Description Original Unit Unit Price Original Contract Revised Estimated in Contract QuantityAmount Revised Amount Quantity Amount A-1 Minor Changes 1 LS $27,000.00 $27,000.00 1 $27,000.00 $0.00 A-2 Mobilization and Demobilization 1 LS $60,000.00 $60,000.00 1 $60,000.00 $0.00 A-3 Temporary Traffic Control 1 LS $60,000.00 $60,000.00 1 $60,000.00 $0.00 A-4 Temporary Erosion and Sediment/Water Pollution Control 1 LS $12,000.00 $12,000.00 1 $12,000.00 $0.00 A-5 Project Sign 2 EA $1,500.00 $3,000.00 2 $3,000.00 $0.00 A-6 Utility Potholing 10 EA $800.00 $8,000.00 19 $15,200.00 $7,200.00 A-7 Construction Surveying,staking,and As-built 1 LS $16,000.00 $16,000.00 1 $16,000.00 $0.00 A-8 Clearing and Grubbing 1 LS $70,000.00 $70,000.00 1 $70,000.00 $0.00 A-9 Removal Existing Drainage Structure 10 EA $150.00 $1,500.00 9 $1,350.00 -$150.00 A-10 Removal Existing Drainage Pipe 973 LF $5.00 $4,865.00 654 $3,270.00 -$1,595.00 A-11 Replace Wood Fence 25 LF $24.00 $600.00 0 $0.00 -$600.00 A-12 Replace Chain Link Fence 60 LF $32.00 $1,920.00 0 $0.00 -$1,920.00 A-13 Remove Asphalt Pavement 1878 SY $14.00 $26,292.00 2231.43 $31,240.02 $4,948.02 A-14 Remove Cement Concrete Sidewalk and Driveway 745 SY $10.00 $7,450.00 769.95 $7,699.50 $249.50 A-15 Remove Cement Concrete Curb and Gutter 828 LF $10.00 $8,280.00 845 $8,450.00 $170.00 A-16 Removal of Structures and Obstructions 1 LS $1,500.00 $1,500.00 1 $1,500.00 $0.00 A-17 Roadway Excavation Including Haul 500 CY $38.00 $19,000.00 698.44 $26,540.72 $7,540.72 A-18 Imported Trench Backfill Including Haul 1556 TON $25.00 $38,900.00 866.72 $21,668.00 -$17,232.00 A-19 Trench Excavation Safety System 1 LS $100.00 $100.00 1 $100.00 $0.00 A-20 Removal and Replacement of Unsuitable Foundation Material 100 CV $30.00 $3,000.00 0 $0.00 -$3,000.00 A-21 Construction Geotextile for Underground Drainage 100 SY $9.00 $900.00 100 $900.00 $0.00 A-22 Crushed Surfacing Base Course 491 TON $42.00 $20,622.00 1086.46 $45,631.32 $25,009.32 A-23 Aggregate Base 134 TON $39.00 $5,226.00 170.84 $6,662.76 $1,436.76 A-24 HMA Cl.1/2-inch PG 64-22(Class B) 590 TON $125.00 $73,750.00 704.65 $88,081.25 $14,331.25 A-25 Temporary Cold Mix Asphalt Concrete Patch 95 TON $100.00 $9,500.00 125.01 $12,501.00 $3,001.00 A-26 Planing Bituminous Pavement 789 SY $6.00 $4,734.00 742 $4,452.00 -$282.00 A-27 Remove and Install Rockery Wall 255 SF $25.00 $6,375.00 374 $9,350.00 $2,975.00 A-28 Underdrain 8-inches Diameter 67 LF $30.00 $2,010.00 55.5 $1,665.00 -$345.00 A-29 Drain Pipe 8-inch Diameter 15 IF $90.00 $1,350.00 30 $2,700.00 $1,350.00 A-30 Mineral Aggregate Type 26 36 TON $60.00 $2,160.00 39.39 $2,363.40 $203.40 A-31 Ductile Iron Storm Sewer Pipe 8-inch Diameter 48 LF $95.00 $4,560.00 7.5 $712.50 -$3,847.50 A-32 Ductile Iron Storm Sewer Pipe 12-inch Diameter 100 LF $100.00 $10,000.00 84 $8,400.00 -$1,600.00 A-33 Corroguate Polyethylene Storm Sewer Pipe 12-inch Diameter 84 LF $85.00 $7,140.00 84.5 $7,182.50 $42.50 A-34 Corroguate Polyethylene Storm Sewer Pipe 18-inch Diameter 709 LF $95.00 $67,355.00 708 $67,260.00 -$95.00 A-35 Tv Inspection 941 LF $3.00 $2,823.00 747 $2,241.00 -$582.00 A-36 Drain Basin 3 EA $1,800.00 $5,400.00 3 $5,400.00 $0.00 A-37 Catch Basin Type 1 with Beehive Grate 2 EA $1,900.00 $3,800.00 2 $3,800.00 $0.00 A-38 Catch Basin Type 1L 1 EA $1,400.00 $1,400.00 1 $1,400.00 $0.00 A-39 Catch Basin Type 2,48-Inch Diameter 12 EA $2,600.00 $31,200.00 10 $26,000.00 -$5,200.00 A-40 Catch Basin Type 2,48-Inch Diameter with Beehive Grate 1 EA $3,000.00 $3,000.00 1 $3,000.00 $0.00 A-41 Catch Basin Type 2,54-Inch Diameter 1 EA $3,500.00 $3,500.00 1 $3,500.00 $0.00 A-42 Adjust Utility Casting 12 EA $700.00 $8,400.00 16 $11,200.00 $2,800.00 A-43 8-inch Clean Out 3 EA $600.00 $1,800.00 3 $1,800.00 $0.00 A-44 High Visibility Fence 830 LF $6.00 $4,980.00 885 $5,310.00 $330.00 A-45 Bioretention Soil 78 CY $70.00 $5,460.00 60 $4,200.00 -$1,260.00 A-46 Topsoil Type A 64 CY $60.00 $3,840.00 75 $4,500.00 $660.00 A-47 Wood Chip Mulch 15 CY $86.00 $1,290.00 15 $1,290.00 $0.00 PSIPE-Tilla americana'Redmond'/Redmond American Linden A-48 (2"Cal) 4 EA $378.00 $1,512.00 5 $1,890.00 $378.00 PSIPE-Spiraea betulifolia var.lucida/Shiny-Leaf Spirea(2 Gal A-49 Cont.) 44 EA $42.00 $1,848.00 44 $1,848.00 $0.00 PSIPE-Berberis thunbergii'Crimson Pygmy'/CRIMSON A-50 PYGMY DWARF JAPANESE BARBERRY(2 Gal.cont) 73 EA $44.00 $3,212.00 73 $3,212.00 $0.00 PSIPE-Prunus laurocerasus'Mt.Vernon'/Mt.Vernon Laurel(2 A-51 Jgal.cont) 41 EA $38.00 $1,558.00 41 $1,558.00 $0.00 A-52 PSIPE-Iris douglasiana/PACIFIC COAST IRIS(Bareroot) 190 EA $12.00 $2,280.00 190 $2,280.00 $0.00 PSIPE-Juncus patens'Elk Blue'/ELK BLUE RUSH(4"cont.) A-53 190 EA $9.00 $1,710.00 190 $1,710.00 $0.00 PSIPE-Juncus effusus'Quartz Creek'/QUARTZ CREEK SOFT A-54 RUSH(4"cont.) 190 EA $9.00 $1,710.00 190 $1,710.00 $0.00 A-55 PSIPE-Juncus tenuis/SLENDER RUSH(4"cont.) 190 EA $9.00 $1,710.00 190 $1,710.00 $0.00 A-56 Sod Installation 225 SY $10.00 $2,250.00 222.2 $2,222.00 -$28.00 A-57 Property Restoration and Landscape Installation 1 LS $14,000.00 $14,000.00 1 $14,000.00 $0.00 A-58 Cement Concrete Traffic Curb and Gutter 1463 LF $28.00 $40,964.00 1411.7 $39,527.60 -$1,436.40 Cement Concrete Sidewalk,Curb Ramps,and Driveway A-59 Entrance 710 SY $75.00 $53,250.00 702.1 $52,657.50 -$592.50 A-60 Momument Case and Cover 1 EA $700.00 $700.00 1 $700.00 $0.00 A-61 Permanent Signing 1 LS $2,100.00 $2,100.00 1 $2,100.00 $0.00 A-62 Pavement Marking 1 LS $2,387.00 $2,387.00 1 $2,387.00 $0.00 A-63 Raised Pavement Marker 1 Hund $500.00 $500.00 1 $500.00 $0.00 A-64 Pervious Concrete Sidewalk 433 SY $71.00 $30,743.00 433.05 $30,746.55 $3.55 A-65 Gravity Block Wall 170 SF $36.00 $6,120.00 157 $5,652.00 -$468.00 A-66 Cobbles 6 CY $250.00 $1,500.00 9.62 $2,405.00 $905.00 CAG-17-108 Harrington Ave NE Green Connections Stormwater Retrofit Project-Phase 2 SWP 27-3731 Change Order#3 Estimated Original Contract Estimated Estimated Estimated Change Bid Item Description Original Unit Unit Price Revised in Contract Amount Revised Amount Quantity Quantity Amount A-67 Side Sewer Relocation 2 EA $1,500.00 $3,000.00 0 $0.00 -$3,000.00 A-68 Relocate Water Line 345 LF $200.00 $69,000.00 345 $69,000.00 $0.00 Estimated Increase in Total Contract Amount $904,036.00 $934,336.62 $30,300.62