07-103.00 JUB Engineers: Street Master PlanAMENDMENT TO
AGREEMENT FOR PROFESSIONAL SERVICES
J -U -B ENGINEERS, Inc.
Street Master Plan
THIS AMENDMENT No. 4 is made to the Agreement for Professional Services dated
May 18 'b, 2006 by and between the City of Spokane Valley, a code City of the State of
Washington, hereinafter "City" and J -U -B Engineers, Inc., hereinafter "Consultant" and
jointly referred to as "parties."
Pursuant to Sections IC and 18 of the Agreement, the parties hereby agree to
amend the Agreement as set forth in the attached Proposal and Detailed Scope
of Work. These services will be tracked and billed on time and materials basis,
and are subject to all of the conditions set forth in the original Agreement. The
City agrees to pay Consultant up to $24,200.00 for the additional services
provided for in this Amendment to the Agreement.
Exhibits to this Amendment are as follows:
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1. Professional Services Agreement dated May 18, 2006;
2. Exhibit A, Supplemental Geotechnical Engineering Evaluation (Revised)
Proposed City of Spokane Valley Roadway Improvements
Original Contract Amount $ 435,470.00
Prior amendments $ 323,112.20
Current Amendment Amount $ _ 24,200.00
Amended Contract Amount $ 782,782.20
The remainder of the Agreement will remain unchanged by this Amendment.
—/,ern
IN WIINESS WHEREOF, the parties have executed this Agreement this
day of N er, 2007. ��
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CITY OF SPOKANE VALLEY: Consultant: J -U -B ENGINEERS, Inc.
W,aMercier, City Manager
Owner
Tax ID No.— REDACTED
ATTEST: APPROVED AS TO FORM:
istine Bainbrid e, ity Clerk Office o e City A ey
PAPublic Works\Street Master P1anUUBUUB amendment No 4 - Supplemental Geotechnical Work -doe
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C07 -103
November 6, 2007
J -U -B Engineers, Inc.
West 422 Riverside, Suite 722
Spokane, Washington 99201
Attention: David J. Kliewer, PE
Area Manager
•
GEOENGINEERS�
Subject: Supplemental Geotechnical Engineering Evaluation (Revised)
Proposed City of Spokane Valley
Roadway improvements
Spokane Valley, Washington
File No. 11264 -009 -01
INTRODUCTION
This letter presents our revised proposal for a supplemental geotechnical engineering evaluation of
existing pavements for the city of Spokane Valley (city), in conjunction with your preparation of the
city's Street Master Plan. GeoEngi.neers completed an initial geotechnical evaluation of existing
pavements at several locations within the city limits under a prior subconsulting agreement to J -U -B
Engineers. Results of our prior study were presented in our report dated April 4, 2007.
As part of our initial study, we investigated pavements at the following locations:
• Appleway Boulevard, east of North Willow Road
• Appleway Boulevard, east of South Dartmouth Road
• South University Road, between East 9d' Avenue and East 10'b Avenue
• South University Road, north of East 13c' Avenue
• South Dishman Mica Load, north of South Herald Road
• South Disltman Mica Road, north of Fast 32"d Avenue
• East 19'' Avenue, east of South Pierce Road (control section)
• North Pines Road, south of East Sinto Avenue (control section)
We obtained cores of the pavements and conducted a visual pavement condition survey at these locations.
We observed three types of structural pavement failures during our study including: "alligator cracking';
longitudinal cracking; and rutting. There are several factors that could be related to the observed
structural failures including: inadequate compaction of the asphalt, base course and/or soil subgrade; low
asphalt concrete temperature at time of placement; cold joints; poor mix design (incorrect oil content;
aggregate gradation that is out of specification or insufficient fracturing of aggregate); and paving
methods, to mention a few.
We recommended that the city consider additional study if further evaluation of the possible cause or
causes of pavement failure are warranted. Such study, in our opinion, should consist of non - destructive
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i -IJ -b Engineers, Inc.
November 6. 2007
Page 2
deflection testing (NDT) of pavement's at the locations of the prior coring and pavement condition
observations_ At the request of the City, we also will assess conformance of the base course layer at
select locations with projec[ specifications. This proposal outlineq our proposed scope: for NDT and data
evaluation.
SCOPE OF SERVICES
The purpose of our supplemental services is to further characterize pavements at the locations listed
above (with the exception of the control section on Fast 19 *, which will he omitted from this study) using
MDT and Laboratory testing methods. Our specific scope of services will includu;
I. Dion- destmc ive dellection testing at each of the locations of Pri or observed faitures and on North
Pines Road (wntrol section) wdrtg a falling- weight deflectorneler under subcontract to
CEoEngineers. ND-r, data will be acquired for approximately 1'00 feet, at 25 -foot intervals, on
either side of the location where cores of pavement were obtained_ We wil I retain the services of
a qualified traffic control company to work with our NDT subconsultant in general compliance
with the Manual of Uniform Traffic Control Devices.
2. in -place density assts of asphalt concrete pavements at prior core locations using a nuclear density
gauge. Measured densities will be compared to laboratory - determined ni.aximum Rice density
typical for the specif=ied mix.
3.. In -place density tests of the base course unit at Mo locations {each) along Applr way Boulevard
and Pines Road_ We will expose the base coursr: unit by saw - cutting an approximate 3-font-
square in the roadway and removing the asphalt concrete layer. in -place density Lesis Will be
cornpleLed using a nuclear density gauge and measured densities will be compared to laboratory -
determined ma imuin dry densities typical for a base course unit. Following completion of in-
place density tests, wu will fill the cut area with quick -set concrete and seal the adjacent joints
with track seal_
4. Supplemental coring at alternative locations 10 collect additional asphalt concrete and base course
samples for laboratory testing, as necessar}r.
5. Laboratory testing of asphalt concrete samples. Laboratory lesting could include bit not be
limited to: uE;t unit weight; percent asphalt, gradal.ioil of aggregate; bulk specific gravity; Rice
spuciiic gravity; percent air voids, and percent compaction. Pdor'to submitting our samples for
testing, we will mutt wiih the project team, review core sarnpIus and select samples to submit for
testing_
6. Laboratory Nesting of base course samples. Testing will ineludu gradation analysis and pcment of
fracture.
7. Review of plans and specifications which are applicable to each of the test and control locations.
Wralso will review and comment on any changes to the WSIDOT Standard Specifications
between the time of each PELViFig project, as applicable and appropriate_
S. Data evaluation. We will review the field and laboratory data relative tq the plans and
specifications to assess whether or not the asphalit concrete and base coljrse at each lauation
appears to comply with the contract doctpmcrnts_ We expect there will be some minor deviations
from the plans and specifications, but will attempt to identify those deviations that plight
influerim long -term pavement performance_
r "r?a o_ ;1264 -00941 GwENGINEER
0 0
J -U -13 Engineers; Inc.
November 6, 2007
Page 3
We also will evaluate the NDT data and compare the measured resilient modulus of each
pavement laver (asphalt concrete surfacing, crushed rock base course and soil subgrade) with
typical values for properly manufactured materials and well compacted materials.
9. Provide opinions regarding the possible cause or causes of pavement failures observed during our
initial study.
10. Present our findings and conclusions in a final written report.
14. Attend two meetings, as requested, with the city and J -U -B to discuss the results of our proposed
study.
The site exploration program will be coordinated by an experienced representative from our staff who
will manage our NDT subconsultant, and traffic control and pavement cutting subcontractors during data
acquisition, and obtain additional pavement cores (if required). Upon completion of the site exploration
program pavement cores will be returned to our laboratory for selection of representative samples for
testing. Results of our site data acquisition and laboratory testing programs will form the bases for
engineering analyses, which will be used to formulate conclusions and recommendations commensurate
with the scope of services described above.
SCHEDULE
We understand that time is of the essence in terms of completing our proposed scope of services. We
should be able to mobilize to the site in less than one week following your authorization of our services.
Site exploration should be complete in two to three days. Laboratory testing will require five to six days.
Our final report should be completed within about three weeks thereafter.
TERMS AND BUDGET
Our services will be completed in accordance with the terms contained in our General Conditions, which
are attached and form a part of this proposal. Please read our General Conditions carefully and advise us
if you have any questions.
The fee for our services will be a lump sum. For the scope of services described above, our fee will be
$24,200. This lump sum includes 58,900 for subcontractor field services, $6,700 for laboratory testing
and $1,000 for meetings. We will provide a credit should actual testing and meeting costs be less than the
above components of our total lump sum fee.
File No. 11264 -009 -01 GEOEKGINEERS�
DATE jMhUGGrY+"'!�'f
COR EI T LATE F LIABILITY INSURANCE. p� 1 08/08/08
PRODUCER THIS CERTIFICATE IS ISSUED AS AMA FR OF INFORMA71ON
ONLY AND CONFERS NO RIGHTS UPON THE CERTIFICATE
The Hartwell Corporation - Cal HOLDER, THIS CERTIFICATE DOES NOT AN1ENQ, rtXTEND OR
PO Box 400 ALTER THE COVERAGE AFFORD: D BY THE POLICIES BELOW -
Caldwell ID 83606
Phone:208- 459 -1678 Fax:208- 454 -1114 INS URER5AFFORDING COVE RAG E NAIC#
ImW RED INSURER Fireman's Fund Ins Co
LHSUREA H: Liberty Engurance.- (A XV ) -., .. .
J -U -B Engineers, Inc.
25�) S Beechwood Ave, Suite 201 WSURERD:
Boise ID 83709
INSURER E: - - - _-
�OVERAGES
TJ;E POLJCIES OF INSURANCE LISTED MOW HAVE 0EEW ISSUED TO THE imSuRED NWED ABOVE FOR THE POLICY PEHIM INDICATED, NownTHSTANDING
ANY REOUIRFMENT, TERM OR CGKL ITFON OF ANT -CONTRACT OR OTHER DOCUMErdT WITH RESPECT TO %NHICH THIS CERTIFICATE MAY BE ISSUED OR
MAY PERTAIN, THE INWRANCE AFFORDED BY THE POLICIES DESCRIBED HERELR IS SU SJECT TO ALL THE TERMS, EXQLUSIONS AND GOND(I'IONS OF SUCH
PGLGCIF.S, AGGREGATE LIMITS SHOWN h1AY HAVE BEEN REDUCED BY PAID CLAIMS.
INWAIDU POUT NUM0ER �QCIC PIRA I
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DESCRIPTION OF OPERATIONSI LOCATIQJ48 f VEHICLES f EKGLUSrONS ADDED BY ENDORSEMENT) SPECIAL PIMVISFONS
Certificate Holder is additional insured for general 1Jability as required
by written contract and as provided by policy farm CG7156.
Y'.FOT19tr.A7F wni nFR CANCELLATION
Spor
_ 3 SHOULD ANY OF THE ABOVE DESCRIBED POLICIES BE CANCELLED BEFORE THE EXPIRATION'
DATE THEREOF, THE IS$UING INSURER 1YLLL ERCEAVQR TO MAIL 3 0 DAYS WRITTBN
City of Spokane Valley NGnCE TO THE CERTIPI)CATE HOLDER NRMEO TO THE LEFT, BUT FAILUPE TO 00 SO $HALL
Attn: City C �I- e rk Im FO$E NO GGLIGATION OR LIABILITY OF ANY KIND ill }ON THE IN511 P ER, ITS AGEMS. OR
11707 E Sprague Ave, Suite 106
Spokane Valley WA 99206 REPRESEHTis71UE5,
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IMPORTANT
If the certificate holder is an ADDITIONAL IN S UP E D. the polio(ies) must be endorsed. A statement
on this certificate does not confer rights to the certificate holder in lieu of such endorse men t(s)_
If S UBROGAT10N IS WAIVED, subject to the terms and conditions of the policy, certain policies may
require an endorsement, A statement on #his certificate does not confer rights to the certificate
holder in lieu of such endorsement(s).
DISCLAIMER
The Certificate of Insurance on the reverse side of this form does not constitute a contract between
the issuing insurer(s), authorized representative v producer, and the certificate holder, nor does it
affirmatively or negatively amend, extend or alter the coverage afforded by the policies listed thereon.
ACORD 25 (2001!06)