The URL can be used to link to this page

Home My WebLink AboutSierra Electric Change Order No 3 C2-11-16-STR Rd 68 Improvements Ph 2CITY OF PASCO PUBLIC WORKS DEPARTMENT CONTRACT CHANGE ORDER NO, 3 Project No: C2-11-16-STR Project Title: Rd 68 Improvements, Ph 2 Contractor: Sierra Electric Description of Change: Aggregate Compliance Price Adjustment Detail as Appropriate: See Attached Contract Bid Amount: $ 1,201,687.00 SALES TAX @ 8.6%: N/A Total: $ 1,201,687.00 PREVIOUS CHANGE ORDER CURRENT CHANGE ORDER Subtotal $ 20,240.00 Subtotal $ 1,615.82 Sales tax @ 8.6% N/A Sales tax @ 8.6% N/A Total $ (20,240.00) Total (1,615.82) Total Change Orders To Date $ (21,855.82) New Contract Amount $ 1,179,831.18 IS CONTRACT TIME AFFECTED BY THIS CHANGE ORDER YES Contract Time Prior to this Change Order ....................... -....... 130 Modification to Contract time by this Change Order .................... 28 revised Total Contract Time ............................................ --.... 158 it is mutuaiiy agreed oy Dom parties that mis change Order Cully describes the change(s) that is (are) being made and that the compensation for this Change Order is full and complete and is the only compensation due or owing for this Change Order. Further, it is mutually agreed that this document will supplement the present Contract Documents and that the provisions of the previously executed Contract Documents shall apply to this Change Order. AGR o TO AND AC EPTED: CONTRACTOR Date APP atlWL4- CITY ENGINEER:Mlt��D e APPROVED PRpJECT ER ate APPROVE . UBL C WO DIRECTOR c) y I Memo Public Works Department Engineering Division To: Mike Pawlak, P.E., City Engineer CC: Kent McCue, Construction Manager Rene Lopez, Construction Inspector Brenda Timpany, Admin Assistant 1 From: Kate Thompson, P. E., Civil Engineer Date: September 29, 2014 Re: Change Order #3, Road 68 Improvements Phase 2 and Interconnect Rd 68 Signals Change Order No. 3 reflects the revisions to the Road 68 Improvements Phase 2 Project listed below. This change order was requested by the City. 1) Crushed Surfacing Top Course (CSTC) was placed on Burden Blvd in July and August of 2014. Three samples of this CSTC were tested on June 19, 2014, and all three tests failed the gradation. These test results are attached for reference. Since the CSTC failed the testing, the City decided to statistically evaluate the CSTC instead of rejecting all of the material. This resulted in a Composite Pay Factor (CPF) of 0.79 which was found by evaluating the test results in accordance with Section 1-06.2 of the WSDOT Standard Specifications for Road Bridge and Municipal Construction (see attached calculation). Since the CPF was below 1.00 and greater than 0.75 a price adjustment was calculated in accordance with Section 3-04.3(8) 2 of the WSDOT Standard Specifications for Road Bridge and Municipal Construction. The formula for price adjustment for Quality of Aggregate in Section 3-04.3(8) is as follows: Aggregate Compliance Price Adjustment = (CPF-1.00)(Quantity of Material)(Unit Bid Price). Therefore the Aggregate Compliance Price Adjustment = (0.79-1.00)(1,832 SY)($4.20/SY) =-$1,615.82 (payment reduction). The Following Table shows the quantity of CSTC that was paid for with each pay estimate to date. Before future CSTC is placed, it will be re -tested for compliance. NO. DESCRIPTION UNIT BID UNIT QUANTITY TOTAL PRICE 1 Pay Estimate 2 — Crushed Surfacing Top Course (2- inch) SY $4.20 1644 $6,904.80 2 Pay Estimate 3—Crushed Surfacing Top Course (2- SY $4.20 188 $789.60 inch) TOTAL $7,694.40 0 Page 1 Due to the quality of the aggregate supplied for the CSTC, the following adjustment will be made as part of this change order: NUMBER I DESCRIPTION I UNIT I UNIT PRICE I QUANTITY I TOTAL 1 Aggregate Com liance Price Adjustment LS' -$1,615.82 1 -$1,615.82 TOTAL 1 -$1,615.82 Unit Price determined by calculation shown above in #1. The Price adjustment for the CSTC will bring the overall payment for the CSTC to $6,078.58. 0 Page 2 10C 9C 8C 7C 0C LL Z 50 W U W 40 a 30 20 10 Particle Size Distribution Report 5-! ` v n 4 9 0 E 2 § 8 3 1 III■IIIIi1l1��,��IIIII III■IIIIIIII��` PERCENT FINER SPEC.' PERCENT PASS? (X=NO) 3/4" 100.0 99.0-100.0 ��fiil 78.0 80.0-100.0 11■IIIIIIII■IIII��■�u��■■ 11■IIIII111■IIIIIIII■IIIIIIII■ 3/8" 61.0 #4 38.0 46.0-66.0 X #10 25.0 #16 19.0 #30 14.0 #40 12.0 8.0-24.0 #100 6.0 III■flllllll�►�►.!�f11111■Ifllllllllllllllll■IIIIIIII■ III■Illlilll■��►��I��I1■IIIIIIII■1111111■IIIIIIII■ #200 4.0 0.0-10.0 III■IIIIIIII■p�II�I� Ipi� ■IIII11111111111111■IIIi1111■ I11■IIIIIIII■IIII�aNk�' 111■IIIIIIII■fflli�l ��I�II111111■IIIIIIII■IIIIIIII■ � IIIIIIII■IIIIIIII■IIIIIIII■ 111■flllllll■IIIIIII�.'''��5,1�fl■IIIIIIII■IIIIIIII■ III■IIIIIIII■IIIIIIII■Iq��'� ��f�'IIIIIIII■IIIIIIII■ IIIIIIfIII111111I1111111■IIIIII�"�°x;'11111■IIIIIIII■ %+9" ,uU ,u , V., U.UI U.VUI I 13.0 SIEVE SIZE PERCENT FINER SPEC.' PERCENT PASS? (X=NO) 3/4" 100.0 99.0-100.0 1/2n 78.0 80.0-100.0 X 3/8" 61.0 #4 38.0 46.0-66.0 X #10 25.0 #16 19.0 #30 14.0 #40 12.0 8.0-24.0 #100 6.0 #200 4.0 0.0-10.0 Material Description CSTC Atterberg Limits PL= NP LL= NV PI= NP Coefficients D90= 15.7345 085= 14.3518 D60= 9.3455 1150= 7.4372 D30= 2.9405 D15= 0.7066 DtO= 0.3076 Cu= 3038 Cc= 3.01 Classincatlon USCS= OP AASHTO= A -1-a Remarks Sampled by: IMT W SDOT 9-03.9(3) Top Co=e Source of Sample: CPM Pasco Pit Sample Number: 60324 Date: 6/19/14 INTERMOUNTAIN Client: City of Pasco Public Works MATERIALS Project: Rd 68 Improvements Ph 2 and Interconnect Rd 68 Signa Tested Sy: 10C 9C 8C 7C eC 5C 40 30 20 10 0 Particle Size Distribution Report %+3" SIEVE SIZE PERCENT FINER SPEC." PERCENT PASS? (XaNO) 3/4" 100.0 99.0-100.0 1/2" 81.0 80.0-100.0 3/8" 64.0 III■IIIIIIIfl�(IIIIIIII■IIIIIIII■IIII��■��■ #4 40.0 46.0-66.0 X #10 26.0 #16 21.0 #30 15.0 #40 13.0 8.0-24.0 #100 6.0 #200 4.3 0.0-10.0 III■II III■IIIIIIII�i III■IIIIIIII■"I��I11■IIIIIIII■IIIIIIII■IIIIIIII■ II IIII�.�.,�IIII11■ �� I1111■IIIIIIIIIIIIIIIIII■IIIIIIII■ IIIIIIII■IIIIIIII■IIIIIIII III■11111 III■IIIIIIIfl■IIII��r��'��IIIIIIII■IIIIIIII■IIIIIIII■ 111■IIIIIIII■III 111■IIIIIIII■III Ila�lll�ll�, 1�1111t II1�':��'��I1: �I■1111111 � „�I"!IIIA■IIIIIIII■IIIIIIII■ IIIIIIIIIII■IIIIIIII■ fl■IIIIIIII■IIIIIIII■ 111■IIIIIIII■IIIIIIII■Ib�r,�� 111■IIIlIlI1111a1111111■Ia11111� �f �� ><.I�IIIIII■IIIIIIII '��y'�I!��IIIIII■IIIIIIII■ %+3" SIEVE SIZE PERCENT FINER SPEC." PERCENT PASS? (XaNO) 3/4" 100.0 99.0-100.0 1/2" 81.0 80.0-100.0 3/8" 64.0 #4 40.0 46.0-66.0 X #10 26.0 #16 21.0 #30 15.0 #40 13.0 8.0-24.0 #100 6.0 #200 4.3 0.0-10.0 WSDOT 9.03.9(3) Top Course Source of Sample- CPM Pasco Pit Sample Number: 60325 INTERMOUNTAI MATERIALS TESTING Tested By: Odium I Fine 13.0 8.7 CSTC Material Description Atterbera Limi PL= NP LL= NV pl= NP Coefficients D90= 15.1502 D85= 13.6795 D60= 8.8164 *50= 6.9026 D80= 2.7359 D15= 0.6000 D10= 0.2761 Cu- 31.93 Cc= 3.07 Classification USCS= OP AASHTO= A -1-a Remarks Sampled by: IMT Date: 6/19/14 Client: City of Pasco Public Works Project: Rd 68 Improvements Ph 2 and Interconnect Rd 68 Signals 10C sc sc 7C 6( 5C 4� 3C 2C 1C Particle Size Distribution Report SIEVE SIZE IN SPEC.' PERCENT PASS? (X•NO) 3/4" 100.0 III■Illllllfl�r'!I III■IIIIIIIII��IIIIII■IIIIIIII■IIIIIIII■IIIIIIII■ IIIIIIIIIf111�1��G�'!f 1/2" 81.0 80.0-100.0 3/8" 67.0 IIIIIIII■IIIIIIII■IIII��■��■ III■I 42.0 46.0-66.0 X IIIIIIIIIIIIIIII■IIIIIIII■ 28.0 #16 22.0 #30 16.0 #40 14.0 8.0-24.0 I11■IIIIIIII■a��Nl1�! .III■11111111�111►�� 111■IIIIf111■1111►#! III■IIIIIIII■IIIIII►\ III■IIIIIIII�IIIIIIIIi' #100 7.0 #200 4.6 0.0-10.0 I!1■I �'�°°�� ,a,, ■IIIIIIIg1111111111■IIIIIIII■ ,. � �:�, ��;,I;��,N�IIIIIIIII■IIIIIIII■ II1111■IIIIIIII■IIIIIIII■ II ,;ur IIIIIIIIIIIIIII■IIIIIIII■ VIII■IIIIIIII■IIIIIIII■' III■IIIIIIII■IIIIIIII■la��l�IIIIIIII■IIIIIIII■ IIIIIIIllflla■IIII1111■11111I�`� i i�lilil I I. ��4 e��'��n11111■IIIIIIII■ 1 I 1 1 1 !! SIEVE SIZE PERCENT FINER SPEC.' PERCENT PASS? (X•NO) 3/4" 100.0 99.0 -100.0 1/2" 81.0 80.0-100.0 3/8" 67.0 #4 42.0 46.0-66.0 X #10 28.0 #16 22.0 #30 16.0 #40 14.0 8.0-24.0 #100 7.0 #200 4.6 0.0-10.0 CSTC Slit Material Description Atterbero Limits PL= NP LL= NV PI= NP Coefficients D90= 15.3412 D86= 13.7987 D60= 8.1271 DSO= 6.2333 DSO= 2.3675 D16= 0.5069 D10= 0.2391 Cu 33.99 Cc= 2.88 _Classification USCS= GW AAS HTO= A -1-a Remarks Sampled by: IMT WSDOT 9-03.9(3) Top Cumse Source of Sample: CPM Pasco Pit Sample Number: 60326 Date: 6/19/14 INTERMOUNTAIN Client: City of Pasco PablieWorks MATERIALS Project: Rd 68 Improvements Ph 2 and Interconnect Rd 68 Signal. TESTING Pro ect No: M14133 Reviewed By: Tested By: �AM w„timn«ranle Test Results Report �{/ Dottarlmant o/TransPoetatbn Contract Number: 008049, Allen Road - Intersection Improvements Orgcode:454301 Project Engineer: Golbek, Scott Lot No : 1 Original Material Id : PASCO CSTC Crushed Surfacing Top Course - 9-03.9(3) - 2012 Bid Item: Comment: Test Property Date: 7/10/2014 Lab Category: Acceptance Unit Cost 4.20 Total Square Yards: 3990.00 CPF: 0.79 Bonus : -3519.18 Test Property Description Price adjustment factor Standard deviation Pay Factor 3/4 in 2 0 101 12 in 2 1.73 0.88 No.4 5 2 0 N0.4D 5 1 1.01 No.200 10 0.3 1.01 Fracture 15 1330.0100 81 Sand Equivalent (SE) 15 Material Id: PASCO CSTC 314in lain No.4 No.40 No. Frac BE 200 Upper Accephines loo 100 fib 24 10 L"OrAcceptance gg 80 48 B 75 40 Sol Deviation 0 1.7 2 1 0.3 Avenge Two SO 40 13 4.3 Test Data for PASCO CSTC Bub Data Tons 314 in lain No.4 No.40 No, Frac SE Let Tested 200 001 -19x014 1330.0 100 79 38 12 4 0 002 0611012014 1330.0100 81 40 13 4.3 0 003 06119x014 1330.0100 81 42 14 46 1 0 SAM Date Printed 7/102014 Rd 68 Improvements, Ph 2 Project #C2-11-16-STR 1 331 ®�SOMME 1 331