HomeMy WebLinkAboutC22310A CA1 Engineering Svcs Monterey Ave. Interchange 669-02CITY OF PALM DESERT
PUBLIC WORKS DEPARTMENT
STAFF REPORT
REQUEST: Approve Amendment No. 1 to Contract No. C22310A with RBF
Consulting, Inc. for Additional Engineering Services to Complete the
Plans, Specifications, and Estimate for Ramp Modifications at the
Monterey Avenue Interchange on Interstate 10 (Project 669-02)
SUBMITTED BY: John A. Garcia, P.E., Engineering Manager
APPLICANT: RBF Consulting, Inc.
3536 Concours, Suite 220
Ontario, CA 91764
DATE:
July 13, 2006
CONTENTS: Request for Additional Services
Contract Amendment No. 1
Vicinity Map
Recommendation:
By minute motion, approve:
1. Amendment No. 1 to Contract C22310A with RBF Consulting, Inc. in
the amount of $157,710.00 for additional engineering services to
complete the plans, specifications, and estimate for the Ramp
Modifications at the Monterey Avenue Interchange on Interstate 10;
and
2. The transfer of $23,705.50 from contingency to base for this
amendment.
Discussion:
On October 14, 2004, City Council approved Contract C22310A with RBF Consulting, Inc.
in the amount of $237,055.00 for engineering services to prepare the plans, specifications
and estimate (PS&E) for the proposed westbound on- and off-ramp modifications at the
Monterey Interchange on Interstate 10 (I-10). The ramp modifications consist of realigning
the westbound I-10 off-ramp to Varner Road and inserting either a loop or hook on-ramp
from northbound Monterey Avenue to westbound I-10. This will eliminate the congestion
and queuing experienced on northbound Monterey Avenue for vehicles entering the
westbound I-10 on-ramp.
Staff has prepared Amendment 1 to Contract C22310A resulting from negotiations with RBF
for additional design services that were not anticipated when the original scope of work was
negotiated. The additional services include the following:
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Amendment 1 to C22310A with RBF Consulting-Monterey I-10 Interchange PS&E
Page 2 of 2
July 13, 2006
• Foundation analysis, type selection report, calculations, and design of a non-
standard tieback retaining wall adjacent to the north Monterey Avenue bridge
abutment. The original scope of work assumed the design of a standard Caltrans
retaining wall.
• Design of a soundwall along the north side of Varner Road.
• Design to accommodate a future lane through the interchange and the
documentation and the approval process for meeting ADA standards from the State
Division of Architecture.
The foundation analysis and design of the non-standard retaining wall is a critical path
design item for completing the PS&E. A future amendment to Agreement C22310A will be
required to address additional services required for landscaping design, bidding and
construction design support services.
Staff has determined that the negotiated cost is equitable for the additional services
rendered. The resulting total design fee of $394,765.00 is approximately 9.6% of the
estimated construction cost, which is reasonable for a PS&E for the project size and
complexity, and requiring review and approval by Caltrans. Staff therefore, recommends
that City Council, by minute motion, approve Amendment 1 to Contract C22310A with RBF,
Inc. in the amount of $157,710.00 and move $23,705.50 from contingency to base. The
remainder of the funds required for this amendment is available in Project Account No. 213-
4389-433-4001.
Submitted By:
�G��..
Joh . Garcia, P.E.
Engineering Manager
Approval:
,���
�Homer Croy
ACM for Development Services
/./ � /
Department Head:
� ���
Mar reenwood, P.E. �
Director of Public Works
Paul
Finar
CITY COUNCIL CTION:
APPROVED DENIED
RSC$IVSD OTHER
Carlos Ortega MSBTING DATE ` - (� •�Cp
City Manager AYES : t"�Ul' I, p�t �Itf�l�� �y� �
NOFS:�
A�SENT:
JG/dhl ABSTAIN: �
VERIFIFD BY: ��(, / � " l
Original on File wi��City Clerk' s Off i, ;;�-
G:IPubWorks�Sta/f Reportsl2006Uu1y 13110 Contract amendment l C22310A RBF 669-021Contract 22310A Amendment 1 RBF Sta)f Report.doc
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� CITY OF PALM DESERT
CONTRACT AMENDMENT
P.O. #
Contract #
Project Plans, Specifications, and Estimate Project #
Pro�ect �escription: for Ramp Modifications at the Monterey
Avenue Interchange on Interstate 10
Contractor Name RBF Consultin�, Inc. Contractor
Street Address �S �6 Concours, Suite 220 Vendor # 4619
City, State, Zip Ontario, California 91764
Contract Amendment #1
11404
C22 � I OA
669-02
Pursuant to the terms of the original contract Agreement, you are hereby directed to make the herein described
changes or do the following described work not included in the plans and specifications for this Contract. Unless
otherwise stated, all work shall conform to the terms, general conditions, and special provisions of the original contract.
DESCRIPTION OF CHANGE
Increase in scope of work for additional en�ineerin� services for I) foundation analysis, type selection report,
calculations, and desi�n of special tieback retainin� wall at Monterey brid�e abutment, and 2) soundwall alon�
Varner Road, and �) desi�n of future lane throu�h interchan�e and approval process for meetin� ADA standards.
Contingency used? (circle one) � No � IncreaselDecrease in Amount $157,710.00
If yes, amount moved to base: $23,705.50. � Increase/Decrease in Days
Contract Amount (include past change orders) $2i7,055.00 � I Contract Date of Completion
Plus/Minus Current Change Order $ I 57,7 I 0.00 I I Plus/Minus Current Change Order
Revised Total Contract Amount $i94,765.00 � I Revised Date of Completion
1. ORDERED BY: 2. CERTIFIED FUNDS AVAILABLE
Department Head
Date
Director of Finance
Date
3. APPROVED BY:
City Manager
4. APPROVED BY:
City Council
Date
We, the undersigned Contractor, have given careful consideration to the change proposed and hereby agree, if this proposal is approved, that we
will provide all materials, perform all labor, except as may be noted above, and perform all services necessary to complete the above specified
work, and hereby accept as full payment the amount shown above, which includes all direct and indirect overhead expenses foR any delays
ACCEPTED BY:
Contractor/Vendor Date
. . ■
CONSULTING
June 29, 2006
Mr. John Garcia
City of Palm Desert
73-510 Fred Waring Drive
Palm Desert, CA 92260-2570
Re: Monterey Avenue Interchange at Interstate 10 PS&E
Additional Design Studies
Dear Mr. Garcia:
JN 10-104249.001
RBF prepared a Scope of Work for the PS&E phase of the subject project in October 2004. In
light of the developments of the PR/PSR, several additional work items have been added to the
project that were not anticipated and not included in RBF's work plan and is, therefore, being
submitted as an additional work request.
RBF is submitting this work request for additional task related to:
1. Foundation analysis and structure design for the proposed tieback retaining wall
adjacent to the north Monterey Avenue Overcrossing abutment.
2. �andscape, irrigation and slope pavement design for the northwest and northeast
quadrant of the Monterey Avenue Interchange. (Not included at this time)
3. Items of work identified during the Project Initiation / Project Approval / Environmental
Document Phase including soundwall design, I-10 mainline design and ADA report.
4. Updates in Caltrans procedures, standards and policies such as ADA and Pavement
Peer reviews.
5. Construction Support Services (Not included at this time)
For the work related to the processing of the PS&E for the project, RBF has identified the
following tasks associated with the change in our original scope of work. The items of note are:
Task 1: Foundation Reoort / Pavement Desian Peer Review Reoort
The scope of our work
laboratory soil testing
geotechnical paramefers
proposed improvements.
includes conducting a geotechnical field investigation and
program, and performing various analyses to develop
and recommendations for design and construction of
Results obtained from the field investigation and laboratory testing program will be used
to establish idealized soil profiles and soil strength parameters used for analyses and
design. The following analyses will be performed for the project:
PLANNING ■ DESIGN ■ CONSTRLlCTiON
330� East Guasli Road, Suite 1�0, Ontano, CA 91761 � 909.974.4900 � Pax 909.974.4004
Offices located throughout Cahfomia, Arrzona & Nevada � www.RBEcom
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6/29/2006
Mr. John Garcia
Page 2 of 6
• Evaluate seismicity and estimate Peak Bedrock Acceleration.
• Foundafion analysis forproposed fieback/retaining wall and sound walf.
• Defermine latera! earth pressures for fie6ack/retaining wall.
• Evaluate global stabilify of new cut and fill slopes.
• Pavement structural section design.
Two additional reports for the project: (1) a Preliminary Foundation Report (PFR) to
support Type Selection of the tieback/retaining wall, (2) a Structure Foundation Report
for the proposed wall; (3) and soii corrosivity. The PFR ar�d Foundation Report will be
prepared in accordance with the Caltrans Guidelines for Foundation Investigations and
Reports Manual (2002). The reports will summarize the findings of the field
investigation and laboratory tests, results of the geotechnical engineering analyses, and
present recommendations for the proposed improvements. Reports will include boring
logs summarizing the observations at each boring location. These reports will be in
addition to the materials report scope in the contract.
Per the Caltrans Design Memorandum regarding the Guidelines for District Pavement
Design Approval/Peer Review Process, dated January 2000, a Pavement Peer Review
Report will be prepared for submittal to Caltrans. This report will allow Caltrans to
better review the proposed pavement design based off of the soil conditions, vehicle
loading type and tra�c volumes. RBF will attend the necessary meetings to discuss
and review the pavement design.
Task 2: Retaininq Wall Desiqn / Tvpe Selection Report
It is anticipated that a permanent earth-retaining structure (retaining wall) will be
necessary to accommodate the proposed modiFications to the entrance ramp to
westbound I-10. The proposed wall will retain the existing Monterey Avenue
Overcrossing's abutment embankment slope. As part of this task, RBF will study
various structural alternatives and determine the appropriate structure type at this
location. Factors to be considered as part of this process include the ramp's proposed
horizontai and vertical alignment, proximity of the ramp to the existing bridge abutment,
existing abutment foundation considerations, constructability, foundation requirements,
and construction cost.
It is known that Caltrans has specific requirements in regard to the acceptability of
certain retaining wail types to be located within existing bridge abutment slopes, and
RBF will work closely with the Caltrans Structures Liaison Engineer to ensure
compliance with these requirements and facilitate Caltrans approval of the project.
A. Type Selection Report
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PLANNIN� ■ �E61GN • OON9TRYCTION
6/29/2006
Mr. John Garcia
Page 3 of 6
RBF will prepare an Advance Planning exhibit for the proposed retaining wall in
accordance with the applicable provisions of Caltrans Memo to Designers,
Section 1-8, inciuding a preliminary estimate of structure construction cost. The
APS exhibit will be submitted for review and comment by Caltrans, prior to RBF
proceeding with final design of the structure.
In accordance with Caltrans Division of Engineering Services Office of Special
Funded Projects Information and Procedures Guide, Section 42, RBF will
engage Caltrans through the Structure Type Selection process for the wall. A
Structure Type Selection Report will be prepared and submitted for review and
approval by Caltrans prior to RBF proceeding �with final design of these
structures.
B. Structure Design Calculations
The structure will be designed by a California-registered civil engineer in
accordance with the applicable provisions of the latest editions of the foliowing
Caltrans manuals:
• Caltrans Bridge Design Specifications
• Caitrans Seismic Design Criteria (S.D.C.)
• Caltrans Bridge Memos to Designers
• Caltrans Bridge Design Aids
C. Structure Independent Check Design Calculations
In accordance with Caltrans' requirements, a California-registered civil engineer
who was not directly involved in the initial design of the structure will
independently check the structure design. The independent check wiil be
perFormed in accordance with the applicable provisions of the Caitrans manuals
listed above.
Any significant differences between the initial design and the independent check
will immediately be resolved between the two licensed engineers untii
substantial agreement on the final design is achieved. Any required changes
will be made to the design and construction documents.
D. Structure Plans
Structure plans will be prepared in accordance with the applicable provisions of
the following Caltrans manuals:
. Bridge Design Details;
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CON3l1LTIN�
PLANNIN� ■ CEBIGN ■ CONSTRUCTION
6/29/2006
Mr. John Garcia
Page 4 of 6
Plans Preparation Manual; and
Plans, Specifications, and Estimates (PS&E) / Ready-to-List (RTL)
Guide
Task Item 3: Soundwall Desian
Per the Noise Report that was prepared during the PA/ED phase of the project, a 130
m sound wall will be required as part of the project to mitigate the noise generated by
the proposed traffic of the on- and off-ramps through Varner Road. The wall is
proposed to join the existing wall along the north side of V�rner Road. Plan and profile
sheets will be prepared to the County of Riverside standards and coordinated for
approval by the County. RBF is requesting additional compensation to prepare the
soundwall design including 1 additional plan/profile wall sheet, one additional detail
sheet, cost estimating and preparation of specifications for the additional soundwall.
Task Item 4: Landscauina Desiqn (Not included at this time)
The County of Riverside is currently in the process of completing a landscape project
that will be impacted by the proposed interchange modiFcations in the north-east
quadrant of the Monterey Avenue / I-10 Interchange. The current landscape project
has been approved by Caltrans and is in the bidding / advertisement phase by the
County of Riverside. it has been agreed upon by the City and County to include this
additional work to the design scope of the Monterey Interchange modification project.
RBF will prepare one set of final landscape construction plans, specifications, and
Opinions of Probabie Construction Costs for the project in su�cient form and detail to
obtain approval from Caltrans, the Coachella Water District, and the City of Palm
Desert, and to facilitate bidding and construction of the landscape improvements. The
plans shall be prepared based on the approved Landscape Concept Plan and VIA
prepared by RBF. The plans shall be prepared in Caltrans format utiGzing Microstation
on based maps prepared by RBF under a separate task. The plans and Opinions of
Probable Construction Costs will be combined with other RBF plans package and shall
be submitted to the City for review and approval prior to other agency processing. The
normal Caltrans process includes a submittal when the plans are 65% and 100%
complete.
Task Item 5: Additional Mainline Desian
The Caltrans Route Concept Report states that the Ultimate Configuration of the I-10
through the project limits is an additional through lane in each direction. As stated in
the Caltrans Project Study Report for the I-10, dated March 2002, an additional mixed-
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coHsuinN�
PLANNING ■ oEHIGN • CpN9TRYCTION
6/29/2006
Mr. John Garcla
Page 5 of 6
flow lane is uitimately proposed on the outside lane of the I-10. Subsequently, a
Project Study Report has been prepared for the additional lane. As such, Caltrans has
stated that all proposed projects should include this lane in the design within the project
limits to not preclude the future lane.
RBF is requesting additional compensation to include approximately 650 m of the
additional through lane and to modify the on- and off-ramp to facilitate the future Iane
while still meeting Caltrans standards for the existing number of lanes.
Task Item 6: Accessibilitv Desinn Standards Review
Per the Caltrans Design Information Builetin Number 82-01, dated November 2004, the
Americans with Disabilities Act (ADA) of 1990, along with it's implementing regulations,
and the California Government Code Sections 4450 et seq. prescribe that facilities
shall be made accessible to persons with disabilities. To comply with the ADA, the
Federal Highway Administration (FHWA) has recommended that the Americans with
Disabilities Act Accessibility Guidelines for Buildrngs and Facilities (ADAAG) shall apply
to the design of the California Department of Transportation (Department) facilities.
RBF is requesting additionai compensation to document and list the aspects of the
project that pertains to the ADA standards and prepare the Division of State Architect
(DSA) application form, DSA-1, and the necessary information to process the project
through the DSA. RBF will work closely with the State Architect to ensure that all
documents needed to process the application are provided.
Task Item 7: Biddina Suuuort i'Not included at this time)
At the Ciry's option, RBF will provide bidding support during the bidding process. RBF
will assist the City in packaging up the bid documents in preparation for bidding to
contractors. RBF will also assist the City in responding to questions regarding the
project cost estimate and special provisions.
Task Item 8: Construction Suoaort /Not included at this time)
At the City's option, RBF will perform the following specific tasks to provide the City of
Palm Desert with support services during advertising, bidding and construction of the
project. The output for each task is self-explanatory.
A. Respond to RFI
Respond to inquiries and provide consultation regarding design issues during
construction as requested by the City/County.
B. Shop Drawing Review
Review project submittals and shop drawings. The review of shop drawings will
include structural working drawing submittals, construction contractor's alternative
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CON9YLTING
PLqNNING • DE91GN • CON9TROCTI�N
6/29/2006
Mc John Garcia
Page 6 of 6
construction approval and other submittals, as requested by the City/County during
construction.
C. Record Drawings (As-Builts)
Prepare Record Drawings (As-Builts) based on filed redlined drawings and other
information provided by the City/County after completion of construction.
Fee
In summary, RBF Consulting is requesting a net increase to our contract in the amouni of
$157,710.00.
This adjustment is necessary for our work to continue. Should you have any questions please
contact myself at (909) 9744935. We look fonvard to continuing our efforts on this project and
its successful compietion.
Sincerely,
i
J r y mhertz, P.E.
Project Manager
Transportation / Public Works
Attachments
cc: Bob Ross
Steve Huff
H:\Pdata\1 01 042 4 91AdmiMcontracflammendments\PSE Ammendment 2006 06 29.doc
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