City of Culver City, California
Agenda Item Report
RECOMMENDATION:
Staff recommends that the City Council approve a professional services agreement
with IDC Consulting Engineers, Inc.for preliminary engineering services for the
Higuera Street Bridge Replacement/Rehabilitation Project, P-553, for a not-to-
exceed amount of $234,173.
BACKGROUND:
The Los Angeles County Department of Public Works (County) is contracted by the
State of California (Caltrans) to perform bridge inspections in Los AngelesCounty
every 2 years. In December 1999, the HigueraStreet Bridge (Bridge) was
determined by the County to be functionally obsolete due to its narrow width
relative to the roadway width on both approaches to the Bridge. Taking this and
other factors into consideration, the Bridge was determined to have a Sufficiency
Rating (SR) of 72.9. According to the federal Highway Bridge Program (HBP),
bridges with an SR less than 80 that are also either structurally deficient or
functionally obsolete are eligible for federal Highway Bridge Replacement and
Rehabilitation HBRR funds.
Staff submitted an application to the federal HBP for funding for preliminary
engineering to study the feasibility of bridge rehabilitation versus replacement.
Caltrans (program manager of HBP) has recently authorized staff to perform
additional preliminary engineering to determine the cost effectiveness of
replacement versus widening and rehabilitation of the Bridge. If the cost to
Meeting Date: 04/11/11 Item Number: C-5
CITY COUNCIL AGENDA ITEM: Approval of a Professional Services Agreement
with IDC Consulting Engineers, Inc. for Preliminary Engineering Services for the
Higuera Street Bridge Replacement/Rehabilitation Project, P-553
Contact Person/Dept.: Sammy Romo/PW Phone Number: 310-253-5619
Fiscal Impact: Yes [X] No [] General Fund: Yes [] No [X]
Public Hearing: [] Action Item: [] Attachments: [X]
Commission Action Required: Yes [] No [X] Date: _______________
Public Notification: Meetings and Agendas – City Council (04/06/11); KPFF, CH2M Hill,
CNS Engineers, IDC Consulting Engineers, Inc. by e-mail on (04/06/11)
Department Approval:
Charles D. Herbertson(04/05/11)
City Attorney Approval:
Carol Schwab (by H. Baker) (04/05/11)
Fiscal Impact Review:
Jeff Muir (by K. Marsden) (04/06/11)
City Manager Approval:
John M. Nachbar (04/06/11) City of Culver City, California
Agenda Item Report
rehabilitate the Bridge is at least 50% of the cost to fully replace the bridge, then
Caltrans can authorize the City to fully replace the bridge.
DISCUSSION:
On December 28, 2010, a Request for Proposals (RFP) was sent to several known
reputable bridge engineering firms as well as published on the City’s website.
Proposals were due February 16, 2011. Below is a list of the four engineering
firms which submitted proposals in response to the RFP:
• IDC Consulting Engineers, Inc.
• CH2M Hill
• CNS Engineers, Inc.
• KPFF Consulting Engineers
The Engineering Services Manager, a Senior Civil Engineer, and an Associate
Engineer (Project Manager) conducted a review of all the proposals and
subsequently conducted interviews of two short listed firms. It was unanimously
determined that IDC Consulting Engineer’s (IDC) proposal and interview results
showed that they are the most responsive and best qualified firm to provide
preliminary engineering services on this project. IDC and its staff have extensive
bridge design experience in similar projects throughout southern California.
Staff recommends that the proposal from IDC be approved since they have
demonstrated by their proposal and during the interview process that they are the
most qualified proposer while also offering a price that is fair, reasonable, and
competitive. It is expected that the preliminary engineering will take approximately
seven to nine months to complete. Upon completion and review by staff, the
results of the preliminary engineering will be forwarded to Caltrans for their review
and approval.
Upon review from Caltrans, staff will seek funding from the federal HBP Program
for final design and construction of a new bridge.
The future improved widened and rehabilitated or replaced Bridge will include two
travel lanes (one in each direction), bike lanes, sidewalks and will be designed to
accommodate a bicycle ramp connection. Staff is seeking a grant from other
sources to design and construct a bicycle ramp from the Bridge to create a new
connection to the Ballona Creek bike path.
City of Culver City, California
Agenda Item Report
FISCAL ANALYSIS:
The funding for the local match portion for this project is currently in account
number 48793500 which has a balance of $879,000. It is estimated that this
amount is sufficient to cover the local match costs for preliminary engineering, final
design, construction, construction management, inspection, and construction
engineering.
The cost for preliminary engineering as stated in IDC’s proposal is $234,173, and
the amount programmed by Caltrans is $250,000. It is recommended that the City
Council authorize the City Engineer to approve contract amendments/additions in
an amount not-to-exceed $15,827 (6.76%).
Assuming a final contract amount of $250,000, the federal contribution would be
$221,325 (88.53%), and the City local match would be $28,675 (11.47%).
ATTACHMENTS:
1. Copy of IDC Consulting Engineers’ Proposal
MOTIONS:
That the City Council:
1) Approve a professional services agreement with IDC Consulting Engineers for
preliminary engineeringservices for the Higuera Bridge
Replacement/Rehabilitation Project, P-553 for a not-to-exceed fee amount of
$234,173; and,
2)Authorize the Public Works Director/City Engineer to approve Change
Orders, if necessary, for an amount not-to-exceed $15,827 (6.76% of
$234,173); and,
3)Authorize the City Attorney to review/prepare the necessary documents; and,
4) Authorize the City Manager to execute such documents on behalf of the City.
MEETING DATE:
AGENDA ITEM:
04/11/11
Approval of a Professional Services Agreement
with IDC Consulting Engineers, Inc. for
Preliminary Engineering Services for the
Higuera Street Bridge
Replacement/Rehabilitation Project, P-553
ATTACHMENTS
Pages
1 Proposal from DC Consulting Engineers, Inc. 24 203 Cerritos Ave-
Anahebo, CA
92805
TA: (714) 520-9010
EnithI sshalistn@doceioneers...
NUS
mand Associates, Inc.
A ENVIRONMENTAL
?iverteck
CITY
ORK
M•NT
ii 1) — Required Forms
0
1101:
Higuera Street Over Ballona Creek Widening
203 W. Cerritos Avenue, Anaheim, CA
SEC1-1
Fax: (714) 520-9068
Tel.: (714) 520-9070
Table of Content
RECEIVED
1
DfYISION |1010|F CUL VER
1.1 Letter of Introduction CITY O CITY
Section 2- Project Team
2M Introduction to IDC Team 3
2.1 Ability of Consultant to Perform Required Work 3
2.2 Experience Working As a Team 4
2.3 Current Staff Availability 4
2.4 Key Personnel 5
2.4.1 Project Management Team 5
2.4.2 Staff Commitment 5
2.4.3 Project Organization Chart 5 & 6
24.4 Brief Key Personnel Resume 7
Section 3 - Subconsultants I Qua Is
3.1 Subconsultants 10
3.2 Relevent Experience 12
Section 4 - Approach
4.0 General Approach
4.1 F-isting Structure Condition
4.2 Brief Approach
4.3 Rehab Alternative
4.4 Bridge Replacement Alternative
4.5 Scope of Work
Section 5 Resouce Matrix 29
APPENDIX - A
1) — Plans
2) — Resumes
3) — Commitment Letters
APPENDIX B
Section 1
HIIFEB
16 MVP 28
3
10
19
19
19
19
20
20
21 Section One — Letter of Introduction
February 16, 2011
Mr. Sammy Romo, PE
Culver City Public Works Department
9770 Culver Boulevard
Culver City, CA 90232
Ref.: Proposal for Higuera Street Widening
Dear Mr. Romo:
MC Consulting Engineers, Inc. is pleased to submit our proposal for the referenced Bridge
Widening Project IDC is a UDBE/DBE/WBE firm incorporated in the State of California that
specializes in Transportation Structural Design. We provide highly technical, reliable and efficient
services to a variety of public agencies. Our staff consists of experienced and accomplished
engineers who are considered experts in their field. They are familiar with the AASHTO, Calttans
and Green book design criteria. Our staff also takes pride in utilizing the latest techniques and state
of art methods of analysis and design of bridge structures.
Our firm also offers extensive experience, which has been
complimented with innovative ideas; perfect solutions for every
complicated condition and state of the art analysis and design. By
working on numerous Design/Build Projects, our staff has gained
valuable experience that will enable us to deliver the most
economical project with no construction glitches.
Our team is also complimented by three local highly qualified firms. PSOMAS, will provide
Civil/Utility/Surveying & Mapping design services. Psornas is one of the top Los Angeles home-
based civil engineering firms and has extensive working experience with Southern California agencies,
including Culver City. Hushmand Associates, Inc. (HA!) will be providing geoteehnical services.
They have extensive bridge experience and recently worked on several bridge widening projects with
IDC. The environmental tasks will be led by Galvin Preservation Associates Inc. GPA is
also a well-known environmental engineering firm that has worked on a variety of bridge projects and
is currently working with IDC on several LA City bridge widening projects. We also have invited
Rivertech, Inc, to join our team for as-needed hydraulic analysis. Rivertech is also working with
IDC on the North Spring Street Viaduct Widening over the LA River,
In addition to our experienced key staff and outstanding team members, the following are
differentiators that make IDC team uniquely qualified for the Higuera Street Bridge Widening Project
• Vast Experience with Similar Bridge Widening Projects — the MC Team has a proven track
record of preparing Type Selection Reports and PS&E for numerous bridge widening projects.
• Local Knowledge — the IDC Team has excellent established working relationships with Culver
City, the City of Los Angeles, Caltrans, Corps and LA County Flood Control District that will
allow us to provide unparalleled customer service. Our task leaders used to work for Caltra-ns,
Culver City and LA County and provide design services to the City of Los Angeles. The IDC
Team can call upon our personal/professional relationship and unmatched knowledge and
understanding of the needs and operations of each agency to ensure top piality services is
provided to the City on this project.
0
BING Higuera Street Over Hallona Creek Widening
203W. Cerritos Avenue, Anaheim, CA Tel.: (714) 520-9070 fax: (714) 520-906/1
As o.frioto6.0 bridge engineering firm,
tit,* senior engineers of or firm
brklg. over years of Dodo
engineering to youillipiot.
SECI-1
3 Section One — Letter of Introduction
• Responsiveness — Five of the key personnel assigned to your project are principals of their
respective firms, which guarantees team continuity, accountability and responsiveness.
Enclosed are one original and three copies of our proposal We are confident that you will find our
team's experience and capabilities to be an excellent match to the needs of this project, and we stand
ready to commence work immediately.
Brief Project Understandino: The Higuera Bridge over the Ballona Creek is a 3-span steel
deck, 193'-6" long and 4V-4" wide. Caltrans Inspection report indicated that the structure has a
Sufficiency Rating (SR) of 72.9. Since the SR is less than 80, the bridge considered Functionally
Obsolete. Three categories impacting the SR are:
• Structural Adequacy and Safety (Current and Future ADT)
• Serviceability and Functional Obsolescence or wide approach; 30' curb to curb Bridge)
• Essentiality for Public Use (demand and growth)
In some cases Special Reduction is also used to calculate a more realistic SR_ For instance, the bridge
is designed for 50 years life span and it is currently 74 year old. The deck is deteriorated allowing
cracks to penetrate deep. The bottom reinforcement is also rusted creating unsafe conditions. The
bridge is not designed for the current vehicular loading that could compromise the integrality of the
structure- As a matter of fact, we believe that the MS18.6 rating listed on the Caltrans report is
questionable. It also should be noted that the existing bridge is constructed with two end spans as
cantilevered segments. This type of construction is not sanctioned by new design criteria and has
inherent maintenance and operational problems. Excessive deck cracking and significant vibration
due to vehicniat traffic are the results of unconventional design/construction. It should be noted
that the As-Build plans provided in the RFP does not reflect the actual bridge type. We will discuss
these issues in more details in our approach.
Because of the reasons outlined above, it is essential to rehab/replace the structure. It also should be
mentioned that the existing bridge was retrofitted in 1998. Studying the retrofit plans, we identified
additional deficiencies that need to be addressed in rehab condition.
We understand the City has secured funding to rectify the existing condition either by widening and
rehabbing the structure or by replacing it. Obviously if the cost of rehab is more than 50% of the
replacement cost, it is warranted to replace the 74 year old bridge altogether. The widened bridge
will accommodate two traffic lanes, bike lanes and a sidewalk for each direction_
We are looking forward to working with you on this interesting and challenging project. If you have
any questions or need additional information, please contact me any time, on my cell at (949) 274-
2102.
Sincerely,
IDC Consulijklig Engineepsul-nc.
Shall
Principal
0
IM
Higuera Street Over Ballona Creek Widening SEC 1-2
• 203W. Cerritos Avenue, Anaheim, CA Tel.: (714) 520-9070 Fax: (714) 520.906S SECTION Two PROJECT TEAM
0
I IOC
liiguera Street Over Ballona Creek Widening SEC2-1
2.0 INTRODUCTION TO 1DC TAM
IDC will be the lead designer for the Higuera Street Widening Project. PSOMAS will lead
Civil/Surveying & Mapping and right-of-way support service; Hushmand Associates, Inc MAO
will provide Geoteehnical Engineering and Testing Services; Galvin Preservation Associates,
environmental documentation preparation and securing approval; and Rivertech will provide
Hydrology/Hydraulic Analysis services if needed. These firms have each performed extensive work
in Southern California and will bring their experiences to bear on this project. They have all worked
on transportation projects with ID C and each other, providing the City a very cohesive and efficient
team.
IDC Consulting Engineers, Inc. was established in October, 1995. IDC is a certified
UDI3E/DBE/WBE firm focused on providing the most technologically advanced,
cost effective, practical and innovative structure solutions to clients.
IDC engineers have established a good record in providing high quality service on planning,
engineering, design (particularly bridge design), and se-krnic analysis for projects in California. The
three senior staff at IDC have more than 90 years of combined bridge design experience and have
' worked on more than 100 Bridge Projects.
[DC staffs experiences include working on numerous high profile and complicated projects for
different clients such as:
• Caltrans: Bay Bridge, Coronado Bay Bridge, Carquinez Strait Bridge, Toll Road Bridge Retrofit
Projects.
• City of Los Angeles: Gold Line Extension-First Street Bridge Widening over LA River, North
Spring St. Widening over La River, 6
1
Street over LA River, Martin Luther King Jr. Bridge, Azusa
Canyon Bridge, Tujunga Ave. Bridge over LA River, Vanowen St. Bridge over Bull Creek, 182nd
Street Over Dominguez Channel, Malibu Canyon Rd. Bridge, Colfax Over LA River, and the
Riverside Drive Bridge over Tujunga Wash.
• Other agencies and cities include: Southern California Railroad Authority (SCRRA), Grade
Separations in the Cities of Rancho Cucamonga, Vernon, Santa Ana, San Dimas, Riverside, and
many others.
• Metro: Exposition LRT, Gold Line Project (LA River Bridge, China Town Aerial, First Street
Widening), State Route 210 Extension
• ACE & ACTA: Reservoir Street Gs, East End Ave. GS, Redondo Junction Grade Separation
(GS) over LA River, Washington Ave. GS, Henry Ford GS, Long Beach Lead over Dominguez
Channel_
2.1 ABILITY OF CONSULTANT TO PERFORM REQUIRED WORK
[DC is proud of its history and its role as an expert Bridge Design Firm. For nearly 16 years, [DC
has been providing engineering and design expertise to Southern California clients. As an
established consulting firm, we take pride in the fact that we have never failed to meet our
responsibilities and have always delivered projects on time and within the budget AvaHabi lit
for this
Assignment
Current Assignments and
Level of Commitment (%)
Team Members.
Proposed Role
• iffiden ing .eri Fernando Real 15%
• 0410 et acja$: Pit)-PrPospanokilitieg: 15%
• N. Spring St. over LA River Widening 15%
• First St. widening Over LA 10%
• Other 10%
--711"4:it
Shafi SharitanRIA PE
protect Mariner
Maoyun Wu, PhD, PE
Bridges/Wails Lead designer
65%
Higuera Street Over Ballona Creek Widening
pc
SEC2-4
SECTION Two PROJECT TEAM
2.2 EXPERIENCE WORKING AS A TEAM
The key IDC Team members presented in the organizational chart have an extensive track record of
working together and collaborating on many of the landmark transportation projects in Southern
California. UDC, PSOMAS, Rivertech and GPA are currently working as team on the North Spring
Street Viaduct Bridge Widening Project over the LA River. IDC and HAT have been working on
numerous projects including the First Street Viaduct Bridge Widening Project, also over the LA
River.
2.3 CURRENT STAFF AVAILABILITY
For each project at IDC, we forecast staff availability to confirm that proposed personnel are
available to provide the proposed services for the scheduled project duration. The key members of
the team were selected both for their expertise, which is substantial, and for their ability to commit
the majority of their time to the Higuera Widening Project.
•
•
•
•
Ken Berkmän, PE
Ok41 . 1?4*.Ntite4d1
Lilifitii090ffiblatOr
AnissaVnYiefzes, PE
•
CIA100 Manager
Richard Galvin,
Environmental Lead
• Ben Hushmand, PhD, PE
Geotechnical and Seismic
Engineer
All Bastani, PhD, PE, GE
Geotechnical and Seismic
Engineer
North Spring $triet Viaduct
W.41hit: sited' Pavement RetiaNIRation:5%
Various PM and OROGro‘pprisibilities 5%
* Others 10% ,
• North Spring Street Viaduct 35%
• Various Hamm Leadership responsibilities
• N. Spring St over LA River Widening 20%
• Fletcher Drive. Over the LA River Retrofit 5% • rmaatei uvw ule E-11,
• North Main St, Over the LA River Retrofit 5%
Wildwood Canyon Park 10%
Sierra SunTower Station 10%
Office Management & Other Responsibilities 15%
Alton Pkwy Gap Closure 25%
Office Management& Other Responsibilities 10%
60%
30%
70%
65%
65%
*Availability for this assignment based on Notice to Proceed date of February 2011. . . . . .
1. Our sA 1::64rif of seasoned
dOsigq. professionals with
• .0,400046 Eitiago. WrOopitg
• experience will deliver
• smattg Enot 0001
• $001.1.10 and within *opt:
SECTION Tow PROJECT TEAM
2.4 KEY PERSONNEL
2.4.1 Project Management Team
MC has recendy completed over 10 Bridge Widening-/Replacement/Retrofft projects
throughout southern California Our proposed project tumi members have worked together on
many of these projects. By drawing upon this extensive experience, we will identify all of the critical
issues and risks early and propose proven solutions.
With over 30 years of project management experience on transportation projects, our project
manager, Shafi Sharifan, has extensive experience working on many local projects. He has developed
professional and personal relationships with many stakeholder decision-making personnel, such as
City of Los Angeles BOE, Caltrans, LA County Department of Public Works and the Flood Control
District, the Corps, and LADWP.
Mr. Sharifan recently completed three major projects with the City of Los Angles that required
extensive coordination with Caltrans and the Corps. His experience and relation-building talents will
be especially valuable for this project.
2.4.2 Staff Commitment
The [DC Team members proposed for this project have no major
commitments that would impede their ability to allocate adequate time
for the work requirements of this project. All of our proposed
personnel, including those designated as "key," will be available to the
extent proposed for the project's duration. No person designated as
"key" shall be removed or replaced without the City's written approval.
2.4.3 Project Organization Chart
The organization chart shown on the following page presents our proposed team and delineates the
lines of communication among the various team members. ]DC understands that individuals deliver
projects. As such, the IDC Team will be led by five fully dedicated and highly qualified individuals:
Ken Berkman, Xiaoynn Wu, Richard Galvin, Ben Hushmand and Matthew Rowe. Mr. Sharifan will
lead this core team as Project Manager as depicted in the Organization Chart.
Higuera Street Over Rations Creek Widening SEb2-5 Project Mau:Igo-I - .
.„
Shafi Sharlfan, PhD, PE
,
0
Structural
Design
.XlayurriWu, PhD, PE
Lie Liu, PhD
hoc
Environmental
:Richard:Galvin•
0111 1A
Geotechnical/ .
Field Investigation .....
. . -
All Bastanl, PhD, GE
Civil
Design
AnIssaVoyletzea,,PE
Regina Hu, PE
PS 0 M AS
76,7777,777777,7771,7
Surveying
Matthew. Rowe, PLS'
PSOMAS
.7
• ,vaii.k,.esig...i.szt'abasofiliiik4akkg55—:.....: '
.Ben
Rivertech, Inc.
Hydraulic: Tat- aim Mayes
I DC
Higuera Street Over }3allona Creek Widening
SEC2-6
:
QA/QC Manager .
Edward Chung, PE
6
IDC
, Stakeholders
Caltrans .
City of Los Angeles
LAFCD/USACOE
oQ,
SECTION Tow PROJECT TEAM
Culver City
Public Works Department
Sammy Rona, PE
Project Manager 0
Higuera Street Over Balkan Creek Widening SEC2-7
110C
PROJECT TEAM SECTION Tow
2A.4 Brief Key Personnel Brief Resumes
This section. provides a brief summary of each of out key personnel's qualifications for his proposed
role as well as an abbreviated listing of their project experience. This summary reinforces the
reasoning behind the selection of each individual for their key roles on this project Please also refer
to the Appendix for full resumes of the discipline leads and additional staff
Shafi Sharifan, PhD, PE- Project Manager
Shafi Sharifan, a principal at IDC, has over 30 years of broad experience in civil and structural
engineering, with responsibility for coordination and management of design, analysis, detailing and
estimating of a variety of projects including several award winners, such as the 400-foot long span
Balanced-Cantilever segmental Bridge over LA River for the Gold Line LRT. Mr. Sharifan's
management and design experience includes working for different cites, Caltrans, OCTA, ACE,
ACTA, Metro, and railroad agencies. Shaft has just finished working on four LA City projects. He
was the Structural Lead in charge of preparing the PS&E for the widening of the Historic First
Street Concrete Arch Bridge over LA River, accommodating two new LRT tracks. Shall also led the
widening of the North Spring Street Bridge, another historical Concrete Arch over LA River, as well
as studying different alternatives and preparing Advanced Planning Studies (APS) for the historical
6th Street bridge replacement over LA River.
Mr. Shathfan is well known for being innovative and creative in bringing the best solutions to
complicated projects. One of his recent interesting projects is the Haven Avenue Grade Separation
in the City of Rancho Cucamonga. When the City Officials expressed the desire of having a railroad
bridge represent the gate to their community, he designed an attractive, unique, award-winning
precast Arch railroad bridge. Shall has Managed/Designed many Bridge projects and is an active
member of AREMA Committee 9, responsible for developing seismic design criteria. Shafi has
recently been involved in. the preparing APS/Type Selection Report for three major crossings as part
of the IDC Design/Build Team for the Phase Ti- Exposition LRT. The work includes two long-
span steel_ through girder bridges and one 165' long precast concrete T-Girder Bridge for the LRT
line.
Ken Berkman, PE Civil Lead
Ken Berkman will be the Civil Design Lead and Utility Coordinator for this project As a former
City Engineer and Deputy Public Works Director, Ken has outstanding organizational and
leadership skills, and extensive experience working -with public agency staff, City Councils,
Commissions, and the general public. Ken's decade of experience in managing and delivering all
phases of public works capital improvement projects and programs for Los Angeles County and a
multitude of its cities, coupled with his utilities coordination experience, makes him perfectly suited
to lead the civil design team in completing the scope of work. In addition to his public sector
experience, Ken's years in the private sector have allowed him to develop an excellent, balanced
approach to understanding a client's needs and the resources required to deliver projects on time
and on budget, with a sharp focus on customer service. Furthermore, as a former Culver City
employee from 1998-2004, he also brings a unique understanding of the community and a successful 0
Hignera Street Over Ballona Creek Widening SEC2-8
1 IBC
SECTION Tow PROJECT TEAM
track record of partnering with City of LA staff on several different types of Culver City projects,
which will ensure the deliverables are completed successfully and as smoothly as possible.
Anissa Voyiatzes, PE- Civil Design
Anissa Voyiatzes will be the civil/roadway design engineer. Anissa's 17 years of civil engineering
planning, design., program and project management experience for transportation and public works
facilities is custom made for this project, as it includes roadway and bridge widenings and
rehabilitations, stxeetscape designs, parkway improvements, and roadway extensions.
Matt Rowe, PE — Survey/Mapping
Matt Rowe has over 28 years of survey experience in the Southern California area. As the Land
Surveying Lead, Matt will oversee the preparation of the survey base map for this project. His local
knowledge and experience in working on similar projects makes him -well suited to handle this
assignment. He has prepared numerous design and street Right-of-Way surveys within the Culver
City area over the years, including the Playa Vista development This experience also includes
providing similar services directly to the neighboring cities of Los Angeles, West Hollywood and
Beverly Hills. Matt will make sure the necessary resources are available in order to meet the tight
schedules anticipated for this project.
Richard Galvin - Environmental Study Lead
Rich Galvin, Vice President and Senior Project Manager of GPA Inc., has been managing the
environmental process for projects in California since 1995. Rich brings a wealth of knowledge and
skills to GPA's environmental group, which specializes in the environmental analysis of projects
throughout the state. Before joining GPA, Rich worked at PMC Inc., where he was both the Los
Angeles Office Manager and manager of the firm's transportation group. Rich also worked for the
California Department of Transportation (District 7), where he was responsible for managing the
environmental process for several major highway projects in the Los Angeles area. Rich's proactive
and organized approach to projects and his understanding of the environmental process have gained
him the respect of numerous clients, including public agencies and private engineering firms. Rich's
experience includes acting as the environmental manager for several cities' Capital Improvement
Programs, where he was responsible for overseeing all environmental documentation and permitting
for transportation projects. Recently when the Environmental study of one the major LA City
Bridge Project failed to receive appropriate approval, Rich was asked to lead the effort of securing
the approval in a short time frame. Mr. Galvin has conducted training on the CEQA/NEPA
process and the Regulatory Permitting Process.
Ben tfushmand, PhD., PE - Geoteohnicai Lead
Ben Hushmand has more than 25 years of experience in geotechnical and environmental research,
testing, and applications, specializing in soil dynamics and analysis and design of soil-structure
systems. He has managed and acted as lead engineer for numerous challenging public and private
projects of the last two decades involving seismic hazards and geotechnical evaluations. These 0
I INC
Higuera Street Over Ballona Creek Widening
I/
SEC2-9
SECTION Tow PROJECT TEAM
investigations have included a large number of bridge design and construction projects for local,
state, and federal government agencies such as a multi-year project for the US Defense Department
to develop a database for load carrying capacity of more than 500 highway bridges and culverts in
Western United States, several research projects on seismic design of bridges for Caltrans and
Washington State Department of Transportation, and a number of bridge widening, replacement,
and seismic retrofit projects for City of Los Angeles including Colfax, 4t h Street and First Street
Bridge over LA River, Port of Los Angeles, and OCTA. Dr. Hushmand has conducted a wide
range of research projects in both earthquake and geoterhnical engineering. He has worked on
several projects studying the dynamic behavior of shallow foundations, piles, gravity base offshore
platforms, dams, bridges,
retaining walls, and liquefiable soils. He has specialized expertise related to
experimental and computer modeling studies of the dynamic response of earth structures and
foundations.
Xiaoyun Wu, PhD., PE Structural Lead
Mrs. Wu has more than 30 years of experience in structural engineering on a wide variety of practice,
including design, research, and teaching. Her specialty includes earthquake engineering, structure
nonlinear behavior and ground motion Dr. Wu has extensive experience in the design of a variety
of significant projects including many toll bridges and other highway structures, Transit and grade
separation structures, urban mass transit structures. Mrs. Just finish working on Type Selection
Report for two steel bridges for the Exposition project Recent experience include designing two
long span concrete arch bridges over LA River, Bay Bridge, SR-57 widening, 1-405 Widening and
new Sand Canyon over I- 405. She is well known and respected by bridge design engineering
community. SECTIONThree Subconsullant/Quals
31 SUBCONSULTANTS
IDC will be joined by four well-qualified firms. First, EDC Consulting Engineers will be the lead
designer for the bridge's widening with the unique experience that Mr. Shatifan and his staff
have gained from similar works. PSOMAS will perform civil, surveying, mapping and right-of-
way support service. Hushmand Associates, Inc. (HA I), who has worked with EDC on
many bridge projects will provide geotechnical support services. GPA ENVIRONMENTAL, a well
respected environmental engineering firm, will prepare the required Study. We also have included
Rivertech, Inc. who have worked on many river crossing bridge projects including the current
work for the N. Spring Street over LA River. They will join our team in case we need their input for
bridge replacement options. We will discuss the hydraulic impacts on the project in more detail in
our approach to the project. These firms have each performed worked together on similar projects
and will bring that experience to bear on this project
PSOMAS I BahmeingtheNatund and BfrittEnvironniete
PSOMAS is a leading consulting engineering firm serving clients in the transportation;
Water/wastewater; construction management; and public, institutional, and private land
development markets. Ranked as one of Engineering News Record (EN -A) magazine's Top 100
Pure Design Finns in the United States, Psornas has a long-standing and robust presence in Los
Angeles County that spans a period of more than 60 years. Headquartered in downtown Los
Angeles, with two additional full-service regional offices located in Santa Clarita and Orange County,
Psomas currently has over 500 employees, with expertise spread across the range of disciplines
critical to public agency capital improvement projects. Their strong resource base will enable them
to fulfill all project objectives with qualified professionals who have the expertise and experience
that match the needs of each specific task.
GPA ENVIRONMENTAL
GPA Environmental is a certified Disadvantaged Business Enterprise (DBE), Woman Business
Enterprise (WBE), Small Business Enterplise(SBE), and an Undemtili7ed Disadvantaged Business
Enterprise (UDBE), registered as a California Corporation that specializes in historic preservation
and environmental consulting. GPA was founded in 2003 and has quickly developed a strong
reputation for high quality studies, reports, and surveys. The GPA project team is familiar with
general planning principles and has the most up-to-date training in the field of historic preservation
and preservation planning, including state and federal cultural resources law, historic preservation
incentives and architectural history as it relates to California history. .
The type of work performed by GPA includes:
• NEPA/CEQA Documentation N Professional Peer Review • Regulatory Permitting
• Mitigation Monitoring • Mills Act Applications • Agency Coordination
• Federal Rehab. Tax Credit Applications • Technical Analysis • NEPA, CEQA, Section
106 Reports
• Preliminary Environmental Studies • Construction Monitoring * HABS/HAER Reports
• Historic Resource Surveys
Some of their sperialied services include working on large infrastructure/CIP projects and
structures and bridges. GPA's bridge experience is extensive and includes work on bridges
= Historic Context Statements N Public Outreach
ii6KL
ifiguera Street Over Ballow. Creek Widening SEC3 -10 SECTIONThree SubconsultanliQuals
throughout California_ Work specific to the City of Los Angeles includes Riverside Drive bridge,
North Main Street bridge, 1-405 Mulholland Drive overcrossing, Fourth & Lorena Street bridge, and
the North Spring Street Viaduct Bridge.
Hushmand Associates, inc.
HAI
is a geotechnical, environmental, earthqnake, materials testing and specialty inspection
engineering firm with more than 20 years of successful project experience and a team of engineers,
geologists and field and laboratory specialty technicians with unparalleled capabilities and experience
in design and construction of major public works projects, transportation, industrial buildings,
infrastructure, and commercial and residential developments involving conventional and specialty
geotechnical and earthquake engineering.
HAT capabilities and experience cover the full range of geotechnical engineering aspects of seismic
design and site-specific evaluations of seismically-induced geologic hazards, including ground
shaking, ground rupture potential, slope instability, pour water pressure buildup and liquefaction
potential, as well as related ground settlement, lateral spreading, and beating capacity failure and
mitigation measures. Both deterministic and probabilistic seismic hazard evaluations are routinely
performed to provide our clients with the required information for making risk management
decisions in compliance with applicable regulations and regulatory agencies.
HAI's field inspection personnel include a pool of soils technicians and specialty and public works
inspectors in asphalt concrete, reinforced concrete, masonry, rein forcing steel, pre-stress/post-
tension concrete and structural steel welding, in addition to soil observation and testing. HAI's
capability in providing specialty geotechnical instrumentation, vibration monitoring, and dynamic
testing services for new construction projects or retrofit of existing structures are unique in the
industry.
RIVER TECH, INC
Rivertech Inc. is a professional engineering corporation providing services in urban runoff water
quality control, river engineering, hydraulics, hydrology and sedimentation engineering. Since our
establishment in 1983, Rivertech has consistently provided high quality service and insures superior
quality by the close involvement of the principal engineers in all stages of project development
The engineers of Rivertech have extensive experience, excellent qualifications and advanced degrees
in hydraulics and hydrology. Their contributions as research specialists, instructors and consultants
in engineering have been substantial and provide unique qualifications in water resources
engineering. The engineers axe supported by a highly trained technical staff, which insures prompt,
accurate completion of Rivertechis projects within a specified budget and time.
0
iliC Higuera Street Over Ballona Creek Widening SEC3 - 1
/3 SECTIONThree Reievent Experience
3.2 RELEVANT EXPERIENCE
' -
Project .
Deserrptiort
Doscril)tion
IME Project Details
-mg
Personnel from
Org Chart
. , _ _ • .
:Kota) :rSprfng:.Stre.et North Spring Bridge Is a magnificent historical arch structure constructed 1 . .Date of completion:
•
Los • in 1 'The bridge 1200 feet long and 40 et wide e,, The original al , .J I 201 .
:Bridge Ov.ertk RiVe4: • m• • •• .1 •
is
" _11
•
Angeles California .structure was modified' to aocomM accommodate2-lanes in each clireCtiOn,. :In. 4 •Ctettractvalue.;
,
order to :meet the pear future traffic:dernand:, the .City of Los Angeles is mflhico
'leading' the effort of' widening the :Structure on both: .sides' ti !Reference.
accommodate 0:1anes. oftraffic,The od.g0S1 structure was decorated by
rWrOn4h.Y.0; PE
intriguing seitectural -detailing . and unique railing 'Wfdertirq the .City Otos-Angeles
historical structure - poses serious cliatenges I1C worked With State' pf31 9.23.,;a3.
Historical Preservationt bifibiale to reconstitute some. of the rpqr)61 .
; architectural rtreatmerits . sncr4etSIIS:Wilidh was removed or altered by .to.
past C.CilletruOtiOrt an developed a 2 D computer. model depicting the
•
AxiSittigr:StrOOtUre and the new widening structure to study the of F S. (:), KA:a
.1he. ,.rvw:sndexlitingstructureeThere. ,.are•;2:Metrotiiik tracks on 60h . :
tor of the river betraOks are within 1.0: feet from: the piers. There is nOt: irtk
enough : rear estate to accommodate A Shoofly an the west'stde Of the
river IDO devised e precast pier system to allow constructing-the:0T
r
:...SendWiChtld• 'between The kadfcs 1n:14 .6. hour •working window The
innovative Mora wed: QVBC a million döllet in: §hootty construction and
,Shottenedthe.:contruOtfOn• period 1. -Iteproject also Includes 'ever 5.00
• :$hafi.Sharifen:
• Veep'
? 11415$4 .
9.0Vietzes,
? :.:Ken -Sedirnety,
•
Rfah:OSIVIn:
Vidge .Widening:
ljt114 Refncations-
• ReedWarPran$
1st Street Bridge Over LA River
Los Angeles, Clifornia
Date of completion
March 2010
Contract value
$43 Million
Reference:
John Koo, PE
City of Los Angeles
213.675.8822
• Shafi Sheffert
• Xiaoyun Wu
• Ben Hushmand
• Bridge Widening
• Geolechnical
• Hydraulics
• Utility Relocations
• Roadway Plans
There are several historical arch bridges over LA River in the city of Los
Angeles. The retrofitting and widening of these majestic structures pose
serious challenges. These bridges were constructed before the Corps
Fined the river. The concrete spread footing adjacent to the river is buried
under more than 30 feet of dirt, Busy rail traffic under the bridge on both
sides of the river limits the construction access. IDC and a team of expert
engineers have been working with the City of Las Angeles Engineering
staff on the widening of this Bridge to accommodate two new LRT tracks
for the GoldLine extension to East Los Angeles. Complex computer
modeling was used to predict the behaviors of the existing structure and
the new widened portion which Is designed on the basis of the recent
seismic design code. Working closely with the State Historical
Preservation officials (SHP0), IDC Engineers were able to preserve the
historical feature of the existing structure while designing the new
widened portion in concert with the existing architectural theme.
hoc
1:01A1
1110C
Higuera Street Over Ballona Creek Widening BEC3-12 SECTIONThree Re!event Experience
Project
Descriptilon
Description
Project Details Personnel from
1=1
Org Chart p
Date of completion
2014
Contract value $1.7
Reference
Caltrans
Hasan El-Natur
916-207-6490
• She! Sharifan
• Xiaoyun Wu
Budge Widening
Geotechnical
Hydraulics
Utility Relocations
Roadway Plans
*
1
DC
Date of completion: • Shafl Sharifan
2013 • Aaoyun WU
Contract value:
$68 million
Reference
Information
Thomas lonta
CH2M1-1111
(949) 544-7054
hoc
• Bridge Widening
• Geotechnical
• Hydraulics
• Utility Relocations
• Roadway Plans
San Francisco Oakland Bay
Bridge San Francisco,
SR — 57 Widenin
On October 17, 1989, when a 250-ton section of the upper deck of the
East Span collapsed during the 7.1-magnitude Loma Prieta earthquake,
the entire Bay Bridge was temporarily closed. After exhaustive study by
seismic experts from around the world it was decided to replace the West
Approach. Work on the West Approach, now in progress, involves
completely demolishing existing structures and building new ones, one
section at a time, as traffic continues to flow. Much of this work occurs
within feet (or inches!) of residential and commercial buildings.
The studies also revealed that rather than a retrofit, the two-mile East
Span would be completely rebuilt. When completed in 2013, it will consist
of several different sections, but will appear as a single, streamlined
span. The East Span will feature the world's longest Self-Anchored
Suspension Span (SAS), connected to a roadway on piers (Skyway),
which will gradually slope down towards the Oakland shoreline (Oakland
Touchdown).
IOC engineers worked on the design of the West Approach structures
I while working for one of the structural design firms preparing PS&E. IDC
I was invited to join the team and continue their critical role during
construction of this Signature Bridge Project,
, •
State Rout 57 (SR-67) is one of the major freeways connecting Orange
County with the LA and San Bernardino County. In general the project
proposes to add one northbound through lane for mixed-flow traffic. This
project supported by OCTA and Caltrans District 12. The total expected
cost of the project is $68,000,000. IDC is responsible for developing
PS&E package for three structures along the freeway.
Lambert Road UC Widening: the existing bridge is single span 174' long.
The superstructure consists of a multi-cell box girder 6' deep. The
existing clearance is 14'-9" and there is no room for falsework,Therefore,
the widening portion must be constructed at higher elevation and lowered
into the permanent place. The design is complicated by the close end
abutments which create challenging construction sequencing. !DC is
preparing the Type Selection Report and 65% plans.
Loftus Channel Culvert: the existing structure is 6-cell concrete box that
is 60' wide, The widening will accommodate the Freeway off ramp to
oamito, I 110C Higuera Street Over Ballona Creek Widening
1141111
SEC3 -13 Duquesne Bridge
Similar to original design
of Hip= Bridge, Built Per Plans
itstramorr.
APPROACH SECTION FOUR
4.0 GENERAL APPROACH
The IDC Team would enthusiastically welcome the opportunity to work on this ehallenging project.
We have already conducted a thorough field review and taken the initiative to develop conceptual
exhibits for several alternatives and prepare a matrix summarizing the pros and cons of all
alternatives (see Appendix). This preliminary work will allow the Team to get a jump start on the
deliverables upon receipt of a Notice of Award.
4.1 EXISTING STRUCTURAL CONDITION
The structure is 74 years old and shows signs of decay. There are visible
signs of settlement and horizontal movement on the expansion joints. The
concrete deck has been cracked, allowing water to seep through. There are
also signs of rust stains on the bottom of the deck. The bridge is not
designed for the current loading and the cracks penetrating through the
deck exposed the bottom reinforcement to weathering and rust. The As-
Built plans showing two standard type abutments resting on piles (the
Duquesne Bridge downstream is designed similar to Higu_era and constructed per plan). However,
there is no abutment constructed for the end spans. We believe that at some point the original
design was modified and the narrower end span was eliminated.
Instead, a much deeper beam matching the depth of the main span
was used This option seems to be more economical.
As a result of this change the tapered deep cantilevered beam is
able to handle the loads and did not need any large abutment to sit
on So instead of wide and heavy abutments, a retaining wall was
constructed with no seat for the cantilevered beam. This type of
structure is not considered standard and would be susceptible to
large deflections that would cause the concrete deck to crack at
several locations along the bridge.
In order to restrain the structure
from extensive movement during a seismic event, the retrofit engineer
strengthened the stem of the retaining walls by widening it and
providing shear keys to engage the retaining walls/abutments in both
longitudinal and horizontal directions. However, the retrofit did not
solve the inherent problem of the structure that vibrates extensively
and causes the concrete deck to crack. The cracks will penetrate deep,
reaching the bottom reinforcement, causing rust and decay. Widening
the structure in kind and replacing the deck would not solve this
problem. Additional retrofitting to change the behavior of the structure is required to remedy the
long-term maintenance problem. We would welcome the opportunity to elaborate on these issues
during the presentation/interview process.
4.2 BRIEF APPROACH
We have studied the As-Bias and the retrofit plans, and gathered information and visited the site
many times. Based on the Scope of Work outlined in RFP, we have identified two alternatives with
several options for each. In consultation with City staff, we wili ftnalive the list before starting the
0
Higuera Street Over Minna Creek Widening SEC4-19 SECTION FOUR APPROACH
Faster constniction period
• Better traffic management
• Better Wad alignment
• WM:4M
• Less impacton the *WNW - Hydraulic:a
• RIO -oliampotApwel
• Hgilot ROW' cast
• Greater utility impactsIOW 1160s)
• Coordination with LAMP
9 ROW** ttlitif00068 gOSt$
• Road alignment skewed
• Higher ROW cost
• Higher cost of protecting existing culvert
• Higher future maintenance costs
Ofigei .friAsitudttio porkil
• qpintrotglo**40:
04 phasing
• Limited through traffic dining tomadon ,
• Higher future maintenance coo
klOrth SIde -Widertirtg
South Side Widening
Duel-Side Widening
• Less impact Off the River
• Faster conS%iCtion period
• Better traffic management
's.11
le-Ifteg Virige
Longer construction period
• Street closure
• Unbalanced span arrangement
• Longer cOn$IrPgtga polpo
• 8frOet pfpgiro
• Higher future inghtearite tbstl
actual work. A brief description of the two alternatives and several options that we will start with
pros and cons of each one is tabulated below.
Alternative Evaluation of Alternatives
Pros
Evaluation of Alternatives
Cons
3-Span Bridge • Better road alignment
• Less ROW impact
• Less impact on the Culvert/River Hydraulics
• Lees future maintenance costs
.67 settee toad alignment
• I-Ps,% ROW irnlia4
• Less impact on the Culvert/River Hyitiraulia
• Less tutOre maintenance. costs
• gettet atthetibS
• 130k.r.-$Ptg*-10-91fOrit6046
4.3 REHAB ALTERNATIVE:
Three alignment options are identified for the Rehab Alternatives. We will consult with the City in
finali7ing these options. The existing condition of the structure would be evaluated thoroughly and
the extent of repair and retrofit will be identified_ The limits and type of the new substructure and
superstructure will be determined_ It is important to design new structural elements in a fashion to
help improve the behavior of the existing structure- We have used such cost saving approaches in
out design of many bridge widenings and will consider it for the Higueta Bridge.
4.4 BRIDGE REPLACEMENT ALTERNATIVE:
As we mentioned earlier, the existing structure is not a conventional 3-span steel bridge. We believe
it -will not be difficult to convince Caltrans that perhaps the best option is to replace the bridge. The
cost analysis of the rehab alternative that would include structural elements to modify the behavior
of the existing structure would also lend credit to this argument. For replacement alternatives two
options with different varieties would be considered. They would include:
I
1M Higuera street Over Ballona Creek Widening SE C4-20
'7 0
11111C
Higuera Street Over Ballona Creek Widening SECA-21
APPROACH SECTION FOUR
Option I: 3-Span
a) Maintwin the same configuration and span arrangement
b) Different span arrangement
Option IL. Single-Span
a) Cast in place
b) Precast
We have developed concepts for each one of these options, which are included for your review in'
the Appendix. Upon receipt of a Notice to Proceed, we will advance these options and prepare a
more detailed table with pros and cons and recommendations to assist the City to select preferred
options for further study. Although it may seem that presenting numerous options is an unusnglly
high level of effort at this stage, it should be noted that due to the vast and extensive bridge
experience of our project manager and lead bridge engineer, it will not be too difficult to develop
and evaluate different options and make recommendations to Caltrans in the City's best interest that
will have an excellent chance of being approved.
Many of these options are developed and presented in the Appendix. In cons -ukation. with City staff,
we wi11 develop a table with different weights associated with each item based on their importance to
evaluate the alternatives. We will assist the City in selecting the most economical and functional
alternative and will develop the Type Selection Report (TSR) for the selected alternative.
4.5 SCOPE OF WORK:
IDC has developed the TSR for numerous projects. Our approach can be adjusted to the City
requirements. We would conduct a kick-off meeting and establish the line of communication and
the lead rolls. We will assist the City in establishing the Stakeholder list and contact information, as
well as scheduling and conducting meetings. IDC will prepare meeting agendas, meeting minutes
and record all action times as well as all the decisions. A brief description of different tasks as
outlined in the RFP is presented herein:
Task 1 - Base Mapping & Conceptual Plan
1.1- Update Project Information/ Data Collection: IDC Team will attend and conduct the
kick-off meeting with the City to go over the project approach as well as design criteria,
requirements, intents, scope, approach and procedures. We will obtain any as-built plans, and obtain
information from Culver City and the County of Los Angeles Flood Control District, and any other
documents that may be available from the Caltrans and the US _Army Corps of Engineers.
L2 - Site Reconnaissance: IDC team will visit the site to conduct a field review and compare,
verify and record any discrepancies between the existing condition and the As-Built plans and other
available information.
1.3- Perform Design Data Survey: Spot surveys will be taken on the ground under the bridge and
to locate critical design objects. A preliminary ROW survey will also be completed to identify the
edges of properties adjoining to project site.
L4 - Prepare Photograrnmettic Map & Products for Design: Though the RFP requests 40 scale,
we will provide a much more detailed 20 Scale Aerial Topographic Map along with a color Digital
Orthophoto, with a 0.25 foot pixel resolution. Topographic base maps will be prepared by
augmenting the aerial topographic map with utility, right-way, survey and drainage information SECTION FOUR APPROACH
obtained as described above. The base map will be broken into sheets for use in preparing
Geometric Approval Drawings and final plans.
1.5 - Perform Roadway & Misc. Design: We will determine the alternatives through coordination
with the City regarding the need to widen the bridge, widen the roadway, improve intersections, etc.
After selecting the preferred option for each alternative, we will prepare Preliminary Geometric
Drawings for the two options. These plans would be used to develop the preliminary cost estimates
and value analysis to help the City to select the preferred alternative. The plans for the selected
alternative will be advanced to include proposed geometry and alignment data including typical
sections, supetelevations, and profiles. Other clarifying information, such as proposed right-of-way
limits and approximate wall locations will be shown as required. The preliminary geometric drawings
will be submitted for approval before proceeding with finalizing the TSR.
1.6 - Review Traffic & Hydrology and Hydraulic Data & Provide Design Guidance: The
existing drainage conditions, the Ballona Creek Hydraulic Model, and the downstream Culvert
adjacent to the existing bridge will be reviewed and potential impacts to the existing drainage
facilities will be assessed for each proposed improvement alternatives. A preliminary cost estimate
will be prepared to evaluate drainage costs for each alternative, including rehab/reconstruction costs
for existing facilities or construction costs for requited new drainage facilities.
L7 - Review Existing Geotecimical info & Provide Design Guidance: We will review site
subsurface data from a recent seismic retrofit project for the bridge, and any other available data for
nearby structures, the City, Cab-tans, or published geologic maps to determine general subsurface
conditions at the project site. We will review the available data prior to our field investigation to
properly plan and incorporate this information in our field investigation. The groundwater table
level will be evaluated through the information provided in available reports by the California
Geological Survey (CGS), and State Department of Water Resources Publications. The collected
information -will be analyzed and utilized in out PFR.
1.8- Prepare Conceptual Plans: The geonaettics for selected alternatives will be developed
considering lane configurations, storage requirements, signal timing, etc. Geometries would be
prepared in sufficient detail to establish constructability, determine the presence of any nonstandard
design features, and to determine realistic construction cost estimates.
Deliverables: Data Collection Summary; Copy of all Utility Notification Letters; Utility
Coordination Meeting Minutes; Utility Notification Matrix; Scale topographic base map, includin
aerial topo map; Draft and Final Geometric Concept Roadway Plans.
Task 2 - Bridge Core Sampling & Preliminary Field Investigations
2.1- _Midge Core Sampling: IDC will collect concrete core samples at four locations. The
locations will be identified by the project structural engineer and will include rebar samples that are
located through non-destructive method. The concrete and steel samples will be tested to determine
the integrity, strength, type of erosion and decay, deficiencies and remaining life span of the
structural components.
2.2- Geotechnical Field Investigation/Boring: We will mark the two boring locations and notify
the City and the Underground Service Alert (USA) prior to beginning fieldwork so that public or
private underground utilities can be identified. The borings would be at least 80' deep and will be
backfilled with grout and cold asphalt patch at the ground surface where pavement exists. A
professional traffic control crew will be provided during our field investigation. This proposal
specifically excludes the assessment of environmental characteristics, particularly those involving
NISC Higuera Street Over Banana Creek Widening SEC4-22 APPROACH
SECTION FOUR
hazardous substances at the site. In the event that obviously suspicious subsurface materials are
encountered visually or by odor in the test borings, such borings will be immediately terminated
until we receive direction from the City staff.
2.3 - Laboratory Testing: We will conduct laboratory testing on the sampled soils in general
accordance with applicable ASTM and/or Goitrous Standards to evaluate the engineering properties.
This testing will include 1) moisture contents and dry densities, 2) Atterberg Limits, sieve, and
hydrometer tests for soil classification, 3) Expansion Index on representative surficial soil samples to
evaluate expansion potential, 4) Direct shear tests, 5) consolidation tests to evaluate the
compressibility of the native soil for detailed settlement analysis, 6) corrosion tests for sulfate and
chloride contents, pH, and soil resistivity and 7) other tests to aid in our
analysis of liquefaction
potential and other geotechnically related items. To minimize laboratory costs, we will use the
information available in our file.
2.4- Preliminary Bridge Foundation Report & Log of Test Borings (LOTB).-IDC
will
provide geotechnical information including subsurface conditions, site geologic and seismic hazards,
design ground motion parameters, and preliminary foundation type recommendations for the bridge
structure replacement/rehabilitation as required. We will prepare a Preliminary Bridge Foundation
Report to present our findings, conclusions, and preliminary geotechnical design parameters for the
subject bridge project The report will include the LOTB, per Caltrans requirements, summarizing
subsurface conditions encountered, results of laboratory testing, and a plan indicating the location of
borings.
Deliverables: Preliminary Foundation Report, LOTB plan, Laboratory Testing Report
Task 3 - Type Selection & Seismic Retrofit Strategy
3.1- Study Bridge Widening Alternatives: IDC team will study at least three roadway Geometric
options for widening alternatives. For each option, different structural types will be considered (see
sample concepts in Appendix). The options will include widening in kind or using different
material
such as cast in place or precast concrete superstructure.
3.2- Superstructure Strengthening Strategy: IDC will analyze the existing bridge and will
perform preliminary engineering to address all deficiencies of the existing structure. We will prepare
recommendation for repairing/replacing portion or entire bridge deck, modify the superstructure
and prevent cracking of the deck, eliminate excessive vibration, and strengthening of the existing
substructure.
3.3 - Seismic Analysis of the Existing Structure: !DC will evaluate the retrofit strategy and the
retrofit work performed in. 1998. We will identify additional work that would be needed to bring the
existing bridge into compliance with the new seismic code. We will also utilize the strength of the
new widening portion to minimize or eliminate the need for additional seismic retrofit for the
existing structure.
3.4- Study Bridge Replacement Alternative: IDC will develop conceptual plans for replacing the
bridge. The options will include the followings:
1. Replacing the Superstructure only: extending the existing substructure (provided it is in
good condition) and replacing the superstructure only.
0
111C
Higuera Street Over Bationa Creek Widening SEC4-23 SECTION FOUR APPROACH
2. Demolish the existing bridge and build a new bridge: alternatives such as 3-span or single-
span with different span arrangements will be studied.
3.5- Develop Pre/1min ' azy Design: LOG will perform preliminary engineering to determine the
type, size and shape of all structural elements. A matrix of the pros and cons of each alternative will
be prepared to assist the City in. selection of the preferred alternative.
3.6 Prepare Preliminary Plan Sheets: IDC will prepare conceptual plans for different
alternatives. The plans will include Plan view, Elevation view and typical Section of the bridge_ Also
we will provide construction notes and sequential steps for constructing the structure.
3.7- Develop Prelimin aty - Quantities & Cost Estimate: Following the preparation of the bridge
plans, construction quantity takeoffs and preliminary cost estimate for the structure will be prepared
per Caltrans standard cost estimate form and requirements. These estimates will be itemized by
individual items, lump sums or unit quantities, and unit prices, as necessary.
3.8- Midge Widening TS_R/Retrofit or Replacement Strategy: IDC will provide Bridge
General Plan for selected alternative for the Higuera Bridge widening over Ballona Creek. The
General Plan will provide a project overview including the limits of work, construction staging, plan
view, elevation view, and structural section. The design will be based on the approved roadway
geometries. The general plan will contain the beginning and ending station of the new bridge,
geometry and shape of the proposed substructure and superstructures, foundations, retaining walls
and wingwalls and the bather rails on the bridge.
We will attend a structure type selection / seismic retrofit strategy meeting to be held at Caltrans
District 7 or at the City. IDC will present the design, preliminary seismic design. analysis and
preliminary design of columns and foundations to the Caltrans engineers.
Deliverable: Bridge Widening General Plans & Type Selection Report; Type Selection/Strategy
Meeting & Approval; Documentation for revising the Scope of work for Bridge Replacement
Task 4- Project Management, Project Admin, QA/QC
4.1— Project Management: A Management Plan will be developed which incorporates the work
outlined by this technical scope of services. This Plan will specify products and portions thereof.
We will conduct progress meetings on a bi-weekly basis with City staff and subconsultants. The
progress meetings will encompass discussions concerning schedule, progress and cost issues for the
previous period and for the coming period. The IDC Team will provide agendas and minutes.
IDC will develop a schedule for the project depicting different task and subtasks. The Plan and
schedule will be updated monthly and will reflect the progress and budget spend to date.
4.2- Project Administration: Following are administrative duties which shall be performed by
IDC:
• Supervise subcontractors and staff, coordinate and monitor work for conformance with
Caltrans/City standards and policies_
• Prepare, circulate, and file correspondence and memoranda as appropriate.
• Review Subconsultant Invoices and prepare monthly invoice and progress report.
• Maintain Project files using the Caltrans Uniform File System.
4.3- QualiT Control/Quality Assurance (QA/QC): Our QA/QC Plan shall meet the intent of
the City QA/QC Plan. The IDC Team has responsibility for the accuracy and completeness of the
Higuera Street Over Banana Creek Widening
I DC SEC4-24
I SECTION FOUR APPROACH
reports, plans, and related documents furnished under this scope of work and shall meet that
responsibility through the preparation and implementation of a Design Quality Control/Quality
Assurance Plan. IDC will review work prepared by our subconsultant parm.ers for inclusion in the
plans. The Quality Assurance Manager will implement the Design Quality Assurance Plan to assure
that the Design Quality Control work is followed for all work products.
Task 5- Bike Ramp Concept Design and Cost Estimate
The IDC Team will prepare the Concept Plan and preliminary cost estimate for the bike ramps
connecting the Higuera Road roadway to the existing be path along the west side of BaB.ona Creek.
Deliverables: Draft and Final Concept Plans for the bike ramp, including retaining wall plan and
profile, Draft and Final Preliminary Cost Estimates, Site Conflicts Report
Task 6 — Air Quality Report and Natural Environmental Study Report
6.1 - IV - antral Environment Study Report :Botanical information for the project 'vicinity will be
reviewed including the biological resources sections for other parts of project area. The California
Natural Diversity Data Base (C,NDDB) and U.S Fish and Wildlife Service species list will also be
reviewed to determine the potential for special-status resources to occur in the project area.
6.2 - Site Investigations: ]DC Team biologists will conduct a survey of the project area to map the
vegetation communities and compile an inventory of botanical and wildlife resources in the project
area. The biologist will also survey the project area and conduct special-status plant surveys if
necessary, depending on CNDDB results and the occurrence of potential habitat The results will be
detailed into the Natural Environment Study per Caltrans Guidelines (SER). The proposed scope
does not include a wetland delineation or section 7 consultation.
6.3 - Air Quality Report: IDC will contact Caltrans Local Assistance staff to determine the
requirements and parameters to be included in the AQSR. In the event that interagency
consultation (IAC) for project-level PM conformity has not yet been completed for the proposed
project, IDC will preparation of the JAG form. The AQSR will be submitted to Caltrans staff for
review and any necessary revisions recommended by Caltrans staff will be incorporated into the
report
Deliverable: Approved Natural Fnvironment Study Report & Air Quality Report
Task 7 — Material Testing
IDC will prepare a plan for performing additional field investigation and material testing to
determine the validity of retrofitting the existing structure. The scope will include additional 4 field
coring/Sampling and laboratory testing.
Deliverable: Additional held sampling and testing results and report to incorporate in Laboratory
Testing Report
tc)
iliguera Street Over ESallona Creek Widening SEC4-25 SECTION Six Fee Estimate
Higuera Bridge Over Ballona Creek Widening Project Contract No. :
Inc
TASK DESCRIPTION: Reviewed By:
Phase I - Bridge Type Selection Report
DATE: 112012011 PREPARED BY: SMS EA NO:
WBS
NO.
LABOR HOURS
SUB-TASK DESCRIPTION Total Hours
Project Engineer
Proj ect Manager
CAD Technician
Or
ut
Iii
cl
185 Task 1 - Base Mapping & Conceptual Plan
185.05.10 Update Project Information/ Data Collection 4
185.05.15 She Reconnaissance
185 10.10 Prepare Photogranynetric Map & Products far Design 4
Perform Design Data Survey 185.10.15 2
18515 Perform Preliminary Design
18.15.05 Perform Roadway & Misc. Design 2 4
Review Traffic & hydrology and Hydrauic Data & provide
design guidance 18.20.05 4
18.20.15 Review Existing Geo info. & prowde Design guidance 4 4
1155.20.25 Prepare Conceptual Plans 2 16
Task 2- Bridge Core Sampling & Prelim. Gee Field
Invest. 210
2111005 Sedge Core Sampling 2
G eotechnical Field Investigation 210.1015 2
210.10.15 Laboratory Testing 2
21010.20 Preliminary Bridge Foundation Report & LOTB 2
215 Task 3 -Type Selection & Seismic Retrofit Strategy
215.0505 Study Bridge Widening Alternatives 2' 20 4
21605.10 Superstructure Strengthening Strategy 4 18 12
215.05.15 Seismic Analysis of The Existing Stmeture 2 40 30 20
215.05.20 Study Bridge Replacement Alternative 2 16 12
215.10.05 Devebp Preliminary Design 82 2 40 10
2161010 Prepare Preliminary Plan Sheets 0 2 60
215,10.15 Develop Preltininary Quantities & Cost Estimate 10
215.90.00 Prepare Structure General Plan For Bridge Widening 2 24
215.90.05 Prepare Structure General Plan For Bridge Replacement 2 24
215.90.08 Bridge Widening TSRIketrotirl or Replacement Strategy 2 12
2150010 Type Selection/Strategy Meeting & Approval
100.00 Task 4- Project Management
100.10.10 Project Management 32
100.10.15 Meetings/City & Stake Holders 4(1 16
10010.20 Project Schedule
100.10.25 Project Admin
10010.30 QA/QC 4 24
TOTAL LABOR HOURS
j 146 . • 08 272
RAW RATE OftilR)
j 034.00: 534.0D
LABOR COSTS 0) •: 63872 $21 .780 So 511.550 .934
EXPENSES
COMMENTS/ASSUMPTIONS:
1)
Unit of
Measure
TOTAL
PRICE
ITEM(S) QUANTITY UNIT PRICE
SacOb $28.0b Printing and Reproduction Each
80.00 wed' Computer Hour
Vehicle Expenses
1111.01 Mileage Miles 800
Ground Transportation (Train/Cab) Each $0 .00
Auto Parking Each
Delively Services Each S400.00
Communications Each 0105 112
Air Travel Each $260 40.00
Travel and Per-Diem Costs Each
$99,979 j OVERHEAD 11.11 .PROFIT 1000 WOO
.... .
Total liours •, j,• 850 $0.09
TOTAL EXPENSES:' $1,108 FIRM'S TOTAL DIRECT EXPENSES $1,106
srr,ose SUB-CONTRACTORS: SUBCONSULTANT 5%
khosa $178,149 FIRM: PSOMAS RIVERTEC TOTAL ESTIMATED COST CPA
$48,780 $24,614 $0 $0 $0 $0 $0 AMOUNT: YEARLY ESCALATION TO MID-YEAR C0
2$
Fee Estimate ° SECTIONSix Fee Estimate
Higue/a Bridge Over Baena Creek Widening Project Contract No.
0
IDC
1 .
Phase 1 - Optional Services
Reviewed By:
EA NO: 1 i TASK DESCRIPTION:
PREPARED BY: SMS DATE: 1/3012011
WES LABOR HOURS
NO. SUB-TASK DESCRIPTION Total Hours 1.5 C
co
0 I
C t II
m 0 m 7:
c m w W, co
t, e
m II
a Ill
Y n
.z -
"ff 6, a
B. a. In IN (.)
Role _.,,._. ,
215 Task 5 - Bike Ramp concept a Cost Estimate 0.
215.00105 Study Bike Lane Ramp PJternatives 4
215_0510 Prepare Bike Lane Ramp Conceptual Plan 4
160100 Task 6 -Air Quality Report & Natural Environmental SR ...
106.1550 Prepare- Air Quality Study Report 4 _
165.1520 Prepare Natural .EmPronmental Study Report 4 4
C. --
210 Task 7 - Material Testing
210.10.30 Field Georg , sai.Ple 4
210.1535 Laboratory testing & report 4
TOTAL LABOR HOURS
RAW RATE (5/HR) 56000
LABOR COSTS (S) • $1.025 SO SO :SO . $0 • ' SO
EXPENSES
COMMENTS/ASSUMPTIONS:
Unit of TOTAL
ITEM(S) QUANTITY UNIT PRICE 1)
Measure PRICE
Printing and Reproduction Each • sil.ao •54000
Computer Hour 50120. ...aaao .
Vehicle Expenses • '$and
Mleage Miles 50151 . S102.00:
Ground Transportation (Train/Cab) Each . .05.00 . .....s?.ob.
Auto Parking Each :S1500. $aes
Delivery Services Eacb . • 5 C 5101500'
Communications Each :.:10.00.0... •10.00'.
Air Travel Each • .52S0 00 5000.
Travel and Per-Diem Costs Fad: . . • . . .
:...0..Y1 Oh SORn
• ••5n.05 • DIRECT TAB.1 .11 ,PROFIT @ 1056
Total liours; :;
TOTAL EXPENSES:. . 5542 FIRM'S TOTAL DIRECT EXPENSES
SUB-CONTRACTORS: SUELCONStiLTANT 5% • . 551,325
Med Smith Emery
FIRM: psomAs GPA RIVERTEC Testing TOTAL ESTIMATED COST $56,024
AMOUNT: $14,876 $21,006 $0 1 $0 $13,000 $0 YEARLY ESCALATION TO MID-YEAR 0 0 ______
Fee Estimate