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Home My WebLink AboutCO 05CHANGE ORDER # 5 `'AIRPORT: Renton Municipal Airport DATE: 8- 13-13 LON: Renton, Washington GRANT* 3 -53- 0055 -024 CONTRACTOR: ICON Materials This change order was prepared in accordance with FAA Program Guidance Letter 12 -03. A price analysis was prepared and it is recommended that the FAA accept the analysis as evidence of cost reasonableness. You are requested to perform the following described work upon receipt of an approved copy of this document or as directed by the Engineer: Item Description Delete Bid Item 1 -15 (Replace 1 L -828 CCR) Add Bid Item CO -5 -1 (Replace L- 2 828 CCR) Subtotal State Sales Tax (9.5 %) This Change Order Total Previous Change Order Amount Original Contract Amount Revised Contract Total Recommended by.- Approved by., Accepted by: Accepted by :. Unit Unit Price Quantity Amount L.S. ($9,700.00) 1 ($9,700.00) L.S. $15,660.63 1 $15,660.63 Engir er, Reid Middleton, Inc. $5,960.63 $566.26 $6,526.89 ($- 11,593.57) $5.460.424.21 $5,455,357.53 Date: l /� � 1f3 S to DOCMAptlotac7 Renton rwB a sfgraclet'Soutn Taxiway Construction \Change Orders \CO 5.docx CHANGE ORDER # 5 AIP PROJECT NO. 3 -53- 0055 -024 _ AIRPORT Renton Municipal Airport LOCATION_ Renton. WA JUSTIFICATION FOR CHANGE This justification for change was prepared in accordance with FAA Program Guidance Letter 12 -03 Brief description of the proposed contract change(s) and locations(s). This change order consists of the following: 1. Delete Bid Item 1 -15 "Replace L -828 CCR" for the specified 4kW CCR. 2. Add Bid Item CO -5 -1 "Replace L -828 CCR" to provide, install, and connect a l5kW CCR to the existing airfield lighting system. Design Directive #9 (attached) was issued on August 1, 2013 documenting these revisions. 2. Reason(s) for the change(s) (Continue on reverse if necessary) In June 2013 during construction of the Taxiway B North Portion project, that project's Electrical Subcontractor performed a series of electrical checks on the airport's electrical system and determined that the 4kW Constant Current Regulator (CCR) specified to be installed "in the Taxiway B South Portion project would be inadequate to operate the Taxiway A and Taxiway B circuits. Calculations by the Electrical Designer determined that a l5kW CCR was required to operate these circuits. 3. Justifications for unit prices or total cost: Justification was prepared in accordance with FAA program guidance letter 12 -03. 4. The sponsor's share of this cost is available from: Port Funds 5. If this'is a supplemental agreement involving more than $2,000, is the cost estimate based on the latest wage rate decision? Yes No NA X 6. Has consent of surety been obtained? Yes Not Necessary X 7. Will this change affect the insurance coverage? Yes No X 8. If yes, will the policies be extended? Yes No X 9. Has this Change Order been discussed with FAA Officials? Yes X No When 08/01/13 With Whom _Peter Doyle N: 1DOC28ApM1no7 Rerrc >r, rw a a s; ,;err , so,;rr, Taxiway Construction \Change Ofders \CO 5.docx DESIGN DIRECTIVE DD Number: 9 Owner: Renton Municipal Aiipnrt Contract No. 3 -53- 0055 -24 Contractor: ICON Materials Engineer: Reid Middleton, Inc. Engineer's File No.: 232010.007.005 Project: Taxiway B System Rehabilitation - South Portion Reconstruction Specification Section: L -125 Para.: L- 125 -2.2 Drawing Ref: E4.2 Detail: In June 2013 during construction of the Taxiway B North Portion project, ICON's electrical subcontractor performed a series of electrical checks and determined that 4kW Constant Current Regulator (CCR) specified for the Taxiway B South Portion project would be inadequate to operate Taxiway A and Taxiway B circuits. The design is revised as follows:: • Delete the 4kW CCR from the installation. • Install a 15kW CCR Bid item quantity adjustments per schedule will be reconciled as part of progress estimate adjustments. Contractor shall submit intended adjustments to individual bid items for reconciliation with engineer. Date: CONTRACTOR RESPONSE (Select one) No Cost Change Order Change Order with Cost Adjustment Anticipated Delete Cost Bid Item #115 4KW L828 CCR ($9,700.00) New Cost Bid Item #115 15 KW L828 CCR $15,660.63 Total added cost for Design Directive #9 = $5,960.63 Response from: ChUCk Coffey Attachments Date Returned: August 1, 2013 h: \doc\forms\constructionlizone\request for interpretation.doc cc: Owner Reid Middleton svv�a nnv +on ' Imuronosxa� ate- ao rl /c a NOLLV IIS MWU onn ISMS - . KMOS g . I i ( �.J ,Ll I 1 Iti.�..1..�.`n... �...�..) H ' I W 0 a >4 j� Bill 1129 r l LNS S\ t R � k 1 A W 0 W Z W i� 4 t f�11 m.o —KW Cl -W -1 zs.-sM.e.o\wroco -twc \n • • Renton Airport Change Order Cost Analysis /Backup for Taxiway B System Rehabilitation - South Portion. Change Order #5 This cost analysis is prepared in compliance with Program Guidance Letter 12 -03. Comparative costs have been taken. from bid prices for other projects, from construction cost guides and from quotes from suppliers. The quantities to complete each of the activities listed below are small in comparison to the quantities for a typical project, therefore unit prices for the items listed.will be higher than expected for a large quantity. 1) Delete 4 kW Constant Current Regulator and Add 15 kW Constant Current Regulator This activity consists of the following tasks. • Delete 4 kW CCR The credit value for the 4 kW CCR was reviewed by the electrical designer and determined to be fair and reasonable. See attached email from electrical designer dated August 9, 2013. - • . Add 15 kW CCR The cost for the proposed addition of the 15 kW CCR was reviewed by the electrical designer and determined to be fair and reasonable. See attached email from electrical designer dated August 9, 2013. The net in for deletion of the 4 kW CCR and addition of the 15 kW CCR from ICON Materials $5,960.63 Conclusion: The requested change order amount is a fair and reasonable estimate for deleting the 4 kW CCR and adding a new 15 kW CCR. H;doc /23ap/10/007 Renton TW B & SignagePsouth Taxiway Constr /Change Orders /Renton CO #5 Cost justification.doc.mjc Mike Creeden From: Dean Ralphs <DRalphs @elcon.com> Sent: Friday, August 09, 2013 12:06 PM To: Mike Creeden Cc: Kurt Addicott Subject: RE: Renton AP - TW B South; FW: Design Directive #9 Cost proposal Pricing appears to be very reasonable, and approximately matches the difference in the material cost of the 4kW regulator and the 15kW regulator. Dean Ralphs 206 - 267 -3047 From: Mike Creeden [ mailto :mcreeden @reidmiddleton.com] Sent: Tuesday, August 06, 2013 5:42 PM To: bean Ralphs Cc: Kurt Addicott; Mike Creeden - Subject: Renton AP - TW B South; FW: Design Directive #9 Cost proposal Dean, This is for the 15kW CCR unit. Please review their cost proposal for reasonability and provide your response. Please recall that you reviewed their initial proposal and responded to it on July 30 with comments about depicting the credit for the 4kW CCR and cost for installation of the 15kW CCR. Thanx. Michael J. Creeden, PE Project Engineer Reid Middleton, Inc. (425) 741 -5005 From: Coffey, Chuck (ICON, OMG Northwest) [_ mailto :ccoffey@oldcastlematerials com) Sent: Tuesday, August 06; 2013 5:36 PM To: Mike Creeden Cc: Kurt Addicott Subject: Design Directive #9 Cost proposal Mike, Attached is the cost proposal that I thought I sent. Sorry for the goof. Chuck Chas E. Coffey