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Home My WebLink AboutCO 3 CAG-18-001 , CO #3-19 \ se Off, G c \ (1+ + N T° Change Order No. 3 Contract Title: NE 315t St Bridge Replacement Project Contractor: Hamilton Construction Co. Contract No. : CAG 18-001 Federal Aid No. : BROS-1070(009) ® Ordered by Engineer ❑ Proposed by the Contractor(VECP) ❑ Unilateral Original Contract Amount: $1,255,999.00 Original Contract Working Days: 80 Current Contract Amount: $1,251,399.00 Current Contract Working Days: 87* Estimated Net Change This Order: $2,700.00 Added Working Days: 2 New Contract Amount: $1,254,099.00 Total Contract Working Days: 89 *Note:Minor Change No 1 added 2 Working Days,Minor Change No.2 added 2 Working Days,Minor Change No.3 added 3 Working Days. Prepar d By: Issu By: e,_R _ 4/ 1 4 1 gin_e. Date ngine r(City of Renton Transportation Date "7 o� Aen40•i rrojed ALvojaJ' Design Manager) Reviewed By: Consent By: Engineer of Record Date Surety(Greater than 25%cost and/or 20% Date time Increase) Reviewed By: Endorsed By: ituye City o enton Project Manager Date Contractof at i ans. De.11.1„ Executed By: Reviewed By: r4 et( 1Imr (�/N / '2-1 )f 9 City Attorney(Greater than$35,00o Date City of lllent914 Publid Works bate 1 and/or change In scope) Administrator[Mayor Change Order No. 3 Contract Title: NE 31st St Bridge Replacement Project Contract No. CAG-18-001 Page 1 of 5 THE CONTRACT IS MODIFIED AS FOLLOWS: Description of Change: • Delete the following bid item from the contract: o Bid Item No. 67, HEAVY LOOSE RIPRAP, Quantity=45 Ton, Unit Price =$135.00 per Ton • Revise quantity for the following bid items in the contract: o Bid Item No. 69, STREAMBED BOULDER ONE MAN, Revised Quantity= 11 Each. o Bid Item No. 70, STREAMBED BOULDER TWO MAN, Revised Quantity= 18 Each. • Add the following bid items to the contract: o Bid Item No. 3-69, NATIVE STREAMBED BOULDER ONE MAN, Quantity=47 Each, Unit Price =$131.80 per Each o Bid Item No. 3-70, NATIVE STREAMBED BOULDER TWO MAN, Quantity=85 Each, Unit Price =$172.55 per Each • Replace Special Provision Section 8-19 Streambed Aggregates with the following: 8-19 STREAMBED AGGREGRATES Section 8-19 is a new section. 8-19.1 Description This work consists of furnishing, mixing, and placing streambed aggregates, of the type specified, at the locations and in conformity with the lines and dimensions shown in the plans or established by the Engineer. At the discretion of the Engineer, Native Streambed Boulders recovered during roadway excavation may be used for the project. Streambed aggregates are classified as follows: Streambed Sediment Streambed Cobbles 6 in. Streambed Boulder One Man Streambed Boulder Two Man Native Streambed Boulder One Man Native Streambed Boulder Two Man 8-19.2 Materials Materials shall meet the requirements of the following sections: Change Order No. 3 Contract Title: NE 31st St Bridge Replacement Project Contract No. CAG-18-001 Page 2 of 5 Streambed Aggregates 9-03.11 Streambed Sediment 9-03.11(1) Streambed Cobbles 6 in. 9-03.11(2) Streambed Boulders 9-03.11(3) Native Streambed Boulders 9-03.11(3) 8-19.3 Construction Requirements 8-19.3(1) Excavation for Placement of Streambed Aggregates The limits and depths of excavation for placement of streambed aggregates shall be as shown in the Plans or established by the Engineer. The excavation for placement of streambed aggregates shall be classified, measured and paid for as Roadway Excavation Incl. Haul in accordance with Section 2-03. 8-19.3(1) Streambed Sediment and Streambed Cobbles Acceptance and Mixing Acceptance of Streambed Sediment and Streambed Cobbles shall be made by the Engineer based upon visual inspection of the material in the truck(s), at the time of delivery to the project site, prior to placement into temporary stockpiles. Any recycled materials (e.g. wood, brick, concrete, rebar, etc.) found in a truck load of streambed sediment or streambed cobbles, will result in rejection of that truck load of material. If two (2) truck loads from the same source are rejected by the Engineer, no additional streambed sediment or streambed cobbles will be accepted from that source. After acceptance by the Engineer, Streambed Sediment and Streambed Cobbles shall be thoroughly mixed on site into a well graded stockpile,to an approximated 50%to 50% ration by volume. Payment for mixing these materials on site shall be incidental to the unit price of both bid items. 8-19.3(3) Placement of Streambed Aggregates Placement of streambed aggregates shall be as shown in the Plans or established by the Engineer. Placement of streambed aggregates shall not occur until the Engineer has accepted the materials and approved the final grades of all areas to receive materials. All costs for furnishing and placing streambed aggregates shall be included in the Contract price of the type of streamed aggregate included in the Proposal. 8-19.3(4) Native Streambed Boulders At the direction of the Engineer, Native Streambed Boulders recovered during roadway excavation shall be sorted, stockpiled and installed where streambed boulders are shown in the plans. Change Order No. 3 Contract Title: NE 31st St Bridge Replacement Project Contract No. CAG-18-001 Page 3 of 5 8-19.4 Measurement Streambed Sediment and Streambed Cobbles shall be measured by the ton. Streambed Boulders shall be measured per each. Native Streambed Boulder shall be measured per each. 8-19.5 Payment "Streambed Sediment", per ton. "Streambed Cobbles 6 in.", per ton. "Streambed Boulder One Man", per each. "Streambed Boulder Two Man", per each. "Native Streambed Boulder One Man", per each. "Native Streambed Boulder Two Man", per each. The unit Contract price per ton for the streambed sediment and cobbles specified above shall be full pay for furnishing all labor, tools equipment, and materials to place the streambed sediment and cobbles as shown in the plans. The unit Contract price per each for the streambed boulders specified above shall be full pay payment for furnishing all labor, tools, equipment, and materials to install the streambed boulders as shown in the plans. The unit Contract price per each for the native streambed boulders specified above shall be full payment for furnishing all labor, tools and equipment to sort, stockpile and install native streambed boulders where streambed boulders are shown in the plans. Payment shall be made for the quantity of materials actually placed. Reason for Change: During roadway excavation, the Contractor encountered large native boulders in the fill behind the existing bridge abutments. These boulders were hard, sound and durable material; free from seams, cracks and other defects; round and sub-angular in shape. Rather than haul this material away and import new boulders, the Contractor was directed to sort, stockpile and install the native boulders where streambed boulders were shown on the plans. Those streambed boulders that were imported to the site and placed, are to be paid using the existing bid items STREAMBED BOULDER ONE MAN and STREAMBED BOULDER TWO MAN, at the associated unit prices. Those native streambed boulders that were recovered and installed, are to be paid using the new bid items NATIVE STREAMBED BOULDER ONE MAN AND NATIVE STREAMBED BOULDER TWO MAN using new unit prices. The bid item HEAVY LOOSE RIPRAP was not used because the quantity of Native Boulders was sufficient for many to be placed and fulfill the same purpose as the Heavy Loose Rip Rap shown in the plans. Materials: Change Order No. 3 Contract Title: NE 31st St Bridge Replacement Project Contract No. CAG-18-001 Page 4 of 5 Native Streambed Boulder One Man Native Streambed Boulder Two Man Plans: No changes were made to the drawings. Adjustment: This Change Order includes changes as defined in Section 1-04.4. Specifically, the deletion of work, reduced quantities and altering specifications. The adjustment shall be made with the unit prices for the new bid items. The estimate is attached. Extension of Time: The Time for Completion is extended 2 non-compensable Working Days in accordance with Section 1-08.8. Equitable Adjustment: This Change Order includes an equitable adjustment in the unit prices of the new bid items. The unit prices for the new bid items are as follows: • Bid Item No. 3-69, NATIVE STREAMBED BOULDER ONE MAN, Unit Price = $131.80 per each. • Bid Item No. 3-70, NATIVE STREAMBED BOULDER TWO MAN, Unit Price =$172.55 per each. Sections 1-04.4 and 1-04.5 of the 2016 WSDOT/APWA Standard Specifications shall govern this Change Order.The Work of the referenced Contract is modified to include the changes detailed herein.The payment provided for herein shall constitute the complete and final settlement for all costs of labor, equipment, materials, overhead, profit, permit fees, and all other claims that may be made by the Contractor as a result of this change. Attachments: Forms to be attached to Change Order ❑ Plans EI Field Directive ❑ Change Order Quotation ® Estimated Change Order Cost ❑ Project Labor List ❑ Force Account Equipment Rate Request (DOT Form 422-010 EF) ❑ Equitable Adjustment Determination Change Order No. 3 Contract Title: NE 31st St Bridge Replacement Project Contract No. CAG-18-001 Page 5 of 5 Estimated Change Order Cost Change Order No. 3 Bid Item No. Description Quantity Unit Unit Price Estimated Cost Force Account _Item description Labor Estimate $0.00 Labor Markup 29% $0.00 _ Equipment Estimate _ $0.00 Equipment Markup 21% $0.00 Materials Estimate _ $0.00 _ Materials Markup 21% _ $0.00 _ Services Estimate _ $0.00 Services Markup 21% $0.00 Mobilization Estimate $0.00 _ Subcontractor Work Estimate _ $0.00 Subcontractor Markup 12%, 10%,7% $0.00 Bid Item Change 67 HEAVY LOOSE RIPRAP -45 _ TON $135.00 -$6,075.00 69 STREAMBED BOULDER ONE MAN -9 _ EACH $300.00 -$2,700.00 70 STREAM BED BOULDER TWO MAN -29 EACH $325.00 -$9,425.00 3-69 NATIVE STREAMBED BOULDER ONE MAN 47 EACH $131.80 $6,194.60 3-70 NATIVE STREAMBED BOULDER TWO MAN 85 EACH $172.55 $14,666.75 Equitable Adjustment Per attached determination Estimate $0.00 Calculated Cost $2,661.35 Estimated Change Order Cost $2,700.00 . 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