HomeMy WebLinkAboutCOW 2007-08-27 Item 5B - Agreement - I-405 Gravity Sewer Line Consulting with HWA GeoSciences Inc COUNCIL AGENDA SYNOPSIS
'�J' ''`9
Initials ITEM No.
ios
s i� f�' Meeting Date 1 Prepared by 1 Mayor's review Council review 1
8/27/07 MC p ;U (41Z
w 9/4/07 I MC 1
1
ITEM INFORMATION
CAS NUMBER: 07-098 I ORIGINAL AGENDA DArh: AUGUST 27, 2007
AGENDA ITEM TITLE Gravity Sewer under I -405 Consultant's Agreement with HWA GeoSciences, Inc.
CATEGORY Discussion Motion Resolution Ordinance Bid Award Public Hearing Other
Mtg Date 8/27/07 Mtg Date 9/4/07 Mtg Date Mtg Date Mtg Date Mtg Date Mtg Date:
SPONSOR Council Mayor El Adm Svcs DCD El Finance El Fire Legal P&R El Police PI/
SPONSOR'S The agreement is for geotechnical services for the Gravity Sewer under I -405 Project. The
SUMMARY existing gravity sanitary sewer under I -405 needs to be relocated due to the highway
widening project. HWA GeoSciences has provided geotechnical services to the City in the
past and their work has been satisfactory. The work is to be completed for $33,110.00.
REVIEWED BY COW Mtg. CA &P Cmte F &S Cmte Transportation Cmte
Utilities Cmte Arts Comm. Parks Comm. Planning Comm.
DATE: 08/21/07
RECOMMENDATIONS:
SPONSOR /ADMIN. Authorize Mayor to sign the consultant's agreement with HWA.
COMMIT TEE Unanimous approval; forward to COW.
COST IMPACT FUND SOURCE
EXPENDITURE REQUIRED AMOUNT BUDGETED APPROPRIATION REQUIRED
$33,110.00 $400,000.00
Fund Source: 402 Sewer (page 114, 2007 CIP)
Comments:
MTG. DATE RECORD OF COUNCIL ACTION 1
08/27/07 1
09/04/07
MTG. DATE ATTACHMENTS
08/27/07 Information Memo dated August f# 2007 (revised after TC meeting)
Consultant Agreement with Scope of Work
Utilities Committee Meeting Minutes from August 21, 2007
09/04/07 1
INFORMATION MEMO
To: Mayor Mullet
From: Public Works Directorctf
Date: August 10, 2007 L�JJ
Subject: Gravity Sewer Under I -405 to Tukwila Parkway
Project No. 97 -SW05
Consultant Agreement for Geotechnical Services
ISSUE
Contract with HWA GeoSciences, Inc. to provide geotechnical services for the sewer line
under I-405.
BACKGROUND
WSDOT is going to widen I-405 in 2008. The existing gravity sanitary sewer under I-405
needs to be relocated due to the widening project.
ANALYSIS
The City of Tukwila requested HWA GeoSciences, Inc. to provide geotechnical services for
the proposed sewer line crossing under I-405. The Consultant's study will cost $33,110.00
with funds coming from the construction budget of $400,000.00. In the past, HWA
GeoSciences, Inc. has provided geotechnical services to the City of Tukwila and their work has
been satisfactory.
RECOMMENDATION
Approve the agreement with HWA GeoSciences, Inc. in the amount of $33,110.00 to provide
geotechnical services to the City of Tukwila for the proposed sewer line crossing under I-405.
attachments: Consultant Agreement with Exhibits
(P:Laurie Admin\Mike\memo 081007sm Consultant Agreement)
CONSULTANT AGREEMENT FOR
GEOTECHNICAL SERVICES FOR I -405
SANITARY SEWER CROSSING
THIS AGREEMENT is entered into between the City of Tukwila, Washington, herein -after
referred to as "the City and HWA GeoSciences, Inc., hereinafter referred to as "the Consultant
in consideration of the mutual benefits, terms, and conditions hereinafter specified.
1. Project Designation. The Consultant is retained by the City to perform geotechnical
services for the sanitary sewer line crossing under I-405. Project No. 97 -SW05.
2. Scope of Services. The Consultant agrees to perform the services, identified on Exhibit
"A" attached hereto, including the provision of all labor, materials, equipment and supplies.
3. Time for Performance. Work under this contract shall commence upon the giving of
written notice by the City to the Consultant to proceed. The Consultant shall perform all
services and provide all work product required pursuant to this Agreement within 60
calendar days from the date written notice is given to proceed, unless an extension of such
time is granted in writing by the City.
4. Payment. The Consultant shall be paid by the City for completed work and for services
rendered under this Agreement as follows:
A. Payment for the work provided by the Consultant shall be made as provided on Exhibit
"B" attached hereto, provided that the total amount of payment to the Consultant shall
not exceed $33,110.00 without express written modification of the Agreement signed
by the City.
B. The Consultant may submit vouchers to the City once per month during the progress of
the work for partial payment for that portion of the project completed to date. Such
vouchers will be checked by the City and, upon approval thereof, payment shall be
made to the Consultant in the amount approved.
C. Final payment of any balance due the Consultant of the total contract price earned will
be made promptly upon its ascertainment and verification by the City after the
completion of the work under this Agreement and its acceptance by the City.
D. Payment is provided in this section shall be full compensation for work performed,
services rendered, and for all materials, supplies, equipment and incidentals necessary
to complete the work.
E. The Consultant's records and accounts pertaining to this Agreement are to be kept
available for inspection by representatives of the City and state for a period of three (3)
years after final payments. Copies shall be made available upon request.
5. Ownership and Use of Documents. All documents, drawings, specifications and other
materials produced by the Consultant in connection with the services rendered under this
Agreement shall be the property of the City whether the project for which they are made is
executed or not. The Consultant shall be permitted to retain copies, including reproducible
copies, of drawings and specifications for information, reference and use in connection with
the Consultant's endeavors. The Consultant shall not be responsible for any use of the said
documents, drawings, specifications or other materials by the City on any project other than
the project specified in this Agreement.
6. Compliance with Laws. The Consultant shall, in performing the services contemplated by
this Agreement, faithfully observe and comply with all federal, state, and local laws,
ordinances and regulations, applicable to the services to be rendered under this Agreement.
7. Indemnification. The Consultant shall indemnify, defend and hold harmless the City, its
officers, agents and employees, from and against any and all claims, losses or liability,
including attorney's fees, arising from injury or death to persons or damage to property
occasioned by any act, omission or failure of the Consultant, its officers, agents and
employees, in performing the work required by this Agreement. With respect to the
perform -ance of this Agreement and as to claims against the City, its officers, agents and
employees, the Consultant expressly waives its immunity under Title 51 of the Revised
Code of Washington, the Industrial Insurance Act, for injuries to its employees, and agrees
that the obligation to indemnify, defend and hold harmless provided for in this paragraph
extends to any claim brought by or on behalf of any employee of the Consultant. This
waiver is mutually negotiated by the parties. This paragraph shall not apply to any damage
resulting from the sole negligence of the City, its agents and employees. To the extent any
of the damages referenced by this paragraph were caused by or resulted from the concurrent
negligence of the City, its agents or employees, this obligation to indemnify, defend and
hold harmless is valid and enforceable only to the extent of the negligence of the
Consultant, its officers, agents and employees.
8. Insurance. The Consultant shall secure and maintain in force throughout the duration of
this contract comprehensive general liability insurance, with a minimum coverage of
$500,000 per occurrence and $1,000,000 aggregate for personal injury; and $500,000 per
occurrence/ aggregate for property damage, and professional liability insurance in the
amount of $1,000,000.
Said general Liability policy shall name the City of Tukwila as an additional named insured
and shall include a provision prohibiting cancellation of said policy except upon thirty (30)
days prior written notice to the City. Certificates of coverage as required by this section
shall be delivered to the City within fifteen (15) days of execution of this Agreement.
9. Independent Contractor. The Consultant and the City agree that the Consultant is an
inde- pendent contractor with respect to the services provided pursuant to this Agreement.
Nothing in this Agreement shall be considered to create the relationship of employer and
employee between the parties hereto. Neither the Consultant nor any employee of the
Consultant shall be entitled to any benefits accorded City employees by virtue of the
services provided under this Agreement. The City shall not be responsible for withholding
or otherwise deducting federal income tax or social security or for contributing to the state
industrial insurance program, otherwise assuming the duties of an employer with respect to
the Consultant, or any employee of the Consultant.
10. Covenant Against Contingent Fees. The Consultant warrants that he has not employed or
retained any company or person, other than a bonafide employee working solely for the
Consultant, to solicit or secure this contract, and that he has not paid or agreed to pay any
company or person, other than a bonafide employee working solely for the Consultant, any
fee, commission, percentage, brokerage fee, gifts, or any other consideration contingent
upon or resulting from the award or making of this contract. For breach or violation of this
warrant, the City shall have the right to annul this contract without liability, or in its
discretion to deduct from the contract price or consideration, or otherwise recover, the full
amount of such fee, commission, percentage, brokerage fee, gift, or contingent fee.
11. Discrimination Prohibited. The Consultant, with regard to the work performed by it
under this Agreement, will not discriminate on the grounds of race, color, national origin,
religion, creed, age, sex or the presence of any physical or sensory handicap in the
selection and retention of employees or procurement of materials or supplies.
12. Assignment. The Consultant shall not sublet or assign any of the services covered by this
Agreement without the express written consent of the City.
13. Non Waiver. Waiver by the City of any provision of this Agreement or any time
limitation provided for in this Agreement shall not constitute a waiver of any other
provision.
14. Termination.
A. The City reserves the right to terminate this Agreement at any time by giving ten (10)
days written notice to the Consultant.
B. In the event of the death of a member, partner or officer of the Consultant, or any of
its supervisory personnel assigned to the project, the surviving members of the
Consultant hereby agree to complete the work under the terms of this Agreement, if
requested to do so by the City. This section shall not be a bar to renegotiations of this
Agreement between surviving members of the Consultant and the City, if the City so
chooses.
15. Attorneys Fees and Costs. In the event either party shall bring suit against the other to
enforce any provision of this Agreement, the prevailing party in such suit shall be entitled
to recover its costs, including reasonable attorney's fees, incurred in such suit from the
losing party.
16. Notices. Notices to the City of Tukwila shall be sent to the following address:
City Clerk
City of Tukwila
6200 Southcenter Boulevard
Tukwila, WA 98188
Notices to Consultant shall be sent to the following address:
HWA GeoSciences, Inc.
19730 64 Avenue West, Suite 200
Lynnwood, WA 98035
17. Integrated Agreement. This Agreement, together with attachments or addenda, represents
the entire and integrated Agreement between the City and the Consultant and supersedes all
prior negotiations, representations, or agreements written or oral. This Agreement may be
amended only by written instrument signed by both the City and the Consultant.
DATED this day of 20
CITY OF TUKWILA CONSULTANT
By: P.
Steven M. Mullet, Mayor
Printed Name: RA/04 ill ,(2 u 4
Title: Yeti, i r t ,A f
Attest/Authenticated: Approved as to Form:
Jane E. Cantu, CMC, City Clerk Office of the City Attorney
Mike Cusick 1405 Sewer Undercrossin df 1
it
X i- 1 i[
a x t
i `HIA`G O S CIENCES INC.
G eo(rcht!icn(i^ pavement Engineering llydrugeniugy Geoenvirottmcnt l Inspection 6 Testing
August 2, 2007
City of Tukwila
6300 Southcenter Blvd. Suite 100
Tukwila, Washington 98188
Attn: Mr. Mike Cusick
RE: PROPOSAL FOR GEOTECHNICAL SERVICES
I-405 SEWER UNDER CROSSING
TUKWILA, WASHINGTON
Dear Mike:
We are pleased to submit this proposal for geotechnical services for the proposed new sewer
under crossing near the City offices in Tukwila. We understand the project includes construction
of a new sewer line to replace an existing pipe that flows southward beneath Southcenter Blvd.
and Interstate 405. The purpose of this work is to determine the subsurface conditions along the
proposed pipeline route and provide geotechnical recommendations for the design and
construction of the new sewer. This scope of work is based on our conversations with you in a
meeting on July 25, 2007 and our subsequent site visit.
The new pipeline would extend froth the driveway of the Xerox building at Southcenter Blvd.
south beneath both Southcenter Boulevard and I -405 to a new manhole to be Iocated in Tukwila
Parkway. The new pipeline would then extend westward about 260 feet to an existing manhole.
Most of the new pipeline would be installed by trenchless methods to avoid traffic disturbance
on I -405.
SCOPE OF WORK
Our proposed scope of work is based on the City's request for four borings to be drilled at
selected locations along the alignment. Based on the anticipated depth of the pipeline and the
likely need for dewatering, we have based our cost estimate on four borings averaging 30 feet
deep. SPT samples would be taken at 2.5 —foot depth intervals in most of the borings, with
3 -inch diameter thin walled tube samples taken in lieu of SPT samples at selected locations to
obtain relatively undisturbed samples of rnhesive snits, where pnccihl?
19730- b4th kvenueW°
Suite 300
Lynnwood WA98036 5957
•Te 5 7 4 01 Ob
="'_`'rte
72 ill=
w�vyYh�r eusueac�a.cvm
g
F Mike Cusick :1405 Sewer Undercrossing.pdf r 2
August 2, 2007
Tukwila Sewer /1-405 Under Crossing
Based on the results of the explorations, HWA will develop recommendations for design and
construction of the geotechnical aspects of the project. These would include recommendations
for shoring excavation,•dewatering, pipe bedding baekfilling, and trenchless pipe
installation. We understand directional drilling (HDD) is the preferred method due to potential
cost savings; however, the WSDOT requirement for pipe casing and/or site geometry may
preclude the use of HDD. Our work will include evaluation of the feasibility of HDD for this
project.
The results of our explorations and analyses will be presented in a geotechnical report.
After review of the conditions along the proposed alignment, we recommend drilling an
additional boring on the south side of Southcenter Blvd. or, preferably, on I-405 right -of -way
between the westbound lanes and Southcenter Blvd. This additional boring would reduce the
spacing between borings along the trenchless construction from about 330 feet to between 200
and 240 feet. It would also help delineate where the subsurface conditions change from upland
material (glacial drift or bedrock) to soft valley sediments. The additional cost of this fifth
boring is presented separately in the following section. Note that prior to drilling, HWA will
attempt to obtain any existing boring logs for the project area from the WSDOT. With your
concurrence, the exploration program would be reduced or modified to avoid duplication of any
existing data.
COSTS
We are prepared to perforni the requested scope of work on a time and expense basis. A
breakdown of our estimated costs is presented on the attached spreadsheet. The estimated cost of
the work requested is $29,791. Adding a fifth boring to the project would cost an additional
$3,319, making the total cost of the work $33,110. We agree not to exceed the authorized
amount without authorization.
SCHEDULE
We can begin the above scope of work within a few days of authorization. The drilling would be
performed as soon as a driller becomes available. At this time, local drillers are typically
scheduled about 3 week out. We expect the drilling can be completed in three days. We would
meet with you after completion of the soil borings to discuss the findings and discus alternatives.
A draft of our geotechnical report would normally be ready for your review about 3 weeks after
completion of the field work, although that schedule can be adjusted to meet your needs.
I-405 Sewer UndercrossingTukwila Proposal 2 HWA GeoSciences Inc.
Mike 1405 Sewer Undercrossing.pdf 3
August 2, 2007
Tukwila Sewer /1-405 Under Crossing
We understand you wish to issue a contract for this work. Please make this proposal an
attachment to that contract. Please call if you wish to modify this scope and budget.
We appreciate the opportunity to be of service.
Sincerely,
HWA GEOSCIENCES INC.
,,i)/ 4
R Boirum, gin P e .E.
er Principal
Enclosure: Job Cost Estimate
1-405 Sewer Undercrossing Tukwila Proposal 3 HWA GeoSciences Inc.
Mike Cusick 1405 Sewer Undercrossing.pclf__ 4 1
N t f
L 1-4 1 1 1 1-3
JOB COST ESTIMATE
RWA Ref.:
GEOTECI-BNICAL SERVICES Date: 2
1-405 SEWER UNDERCROSSING Prepares for: Tukwila
TUKWILA, WASHINGTON Prepared By: RNB
nrIting
PROPOSED SCOPE:
This estimate includes drilling four borings averaging 30 feet deep along the proposed alignment.
It includes performing geotechnical analysis to develop recommendations for design of the proposed undercrossing
of I-405 and the associated sewer line. A geotechnical report will be prepared summarizing the results of the
explorations and presenting our recommendations.
PitAIM,APP-la-qi
ESTIMATED RWA LABOR:
PERSONNEL AND 2007 HOURLY RATES
WORK TASK Principal 1 Engineer 1 Geol 1 CAD/Tech 1 Clerical TOTAL LABOR
DESCRIPTION $200.00 8140.00 1 $100.00 1 $68.00 1 $64.00 HOURS AMOUNT
Permits/ Traffic Plan Utilities 4 6 10 $1,160
Site Explorations 8 1 20 1 28 $3,120
Logs Profile 1 4 1 1 5 $540
Engineering
Dewatering 4 8 1 1 12 $1,600
Excavation Shoring 2 8 1 1 10 $1,520
Trenchless Evaluation 6 20 1 4 1 30 $4,400
Report 4 16 1 1 6 2 28 $3,576
Management 4 1 4 $560
Review of Plans 2 6 1 1 1 8 $1,240
18 67 42 6 2 135 817,716
ESTIMATED OTHER DIRECT COSTS
Exploration Subcontracts 89,040
Traffic Control $1,607
Mileage/Mise. $125
Laboratory Testing $1,304
iiing) MgiONJIIIIIiiiiiinililiMiii: S 12 1 075
TOTAL COSTS
Labor Costs $17,716
Other Direct Costs $12,075
omkiggliammoniiiiiiiiillililiii:Iii1:11) 829,791
533,110
Tukwila Sewer 1-405 Undercrossing HWAGeoSciences Inc.
it
o; :z City of Tukwila
Y o
��bi Utilities Committee
1908
UTILITIES COMMITTEE
Meeting Minutes
August 21, 2007 5:00 p.m.
PRESENT
Councilmembers: Joan Hernandez, Chair; Jim Haggerton and Joe Duffle
Staff: Jinn Morrow, Frank Iriarte, Mike Cusick, Pat Brodin, Ryan Larson and Gail Labanara
CALL TO ORDER: Committee Chair Hernandez called the meeting to order at 4:59 p.m.
I. PRESENTATIONS No presentations.
II. BUSINESS AGENDA
A. Gravity Sewer Under I -405 Consultant Agreement Geotechnical Services
Staff is seeking Council approval to enter into a consultant agreement with HWA GeoSciences, Inc.
for geotechnical services related to relocation of a gravity sanitary sewer. The sewer line currently
runs under I -405 and needs to be moved due to the widening of I -405. The purpose of this contract
will be to determine subsurface conditions along the proposed relocation route as well as to provide
geotechnical recommendations for the design and construction of the new sewer. The contract will
cost approximately $33,000 and funds will be taken from the $400,000 construction funding for this
project. UNANEVIOUS APPROVAL. FORWARD TO AUGUST 27 COW.
B. Water Conservation Goals
Staff utilized a PowerPoint presentation to illustrate water conservation planning requirements and
goals mandated by the Water Use Efficiency Rule of the new Municipal Water Law that went into
effect earlier this year. Fortunately, Tukwila has been applying almost all of theses standards since
the mid -80's, not as a requirement, but as a matter of good management practices. The only
additions made to Tukwila's current water conservation program will be reporting to the Department
of Health and holding a public process for planning and goal setting.
As mandated by the Municipal Water Law, conservation goals /measures must be adopted by the
Council by January 22, 2008. Staff is working to refine the required 12 goals along with the draft
resolution to bring back to the next Utilities Committee, then to full Council. The same PowerPoint
will be given to full Council at the same time the resolution is presented for discussion.
INFORMATION ONLY.
C. NPDES Grant Annlications
The City of Tukwila will be applying for a $75,000 grant to assist in implementing NPDES
(National Pollutant Discharge Elimination System) Phase II requirements from the Washington
State Legislature. If successful, these funds will be received in 2008 and must be expended by June
30, 2009. The grant funds will be utilized for permit implementation and other stormwater activities.
Staff has identified a GIS inventory and master plan development as part of these activities. No