Nicolas Theodor is a senior bridge engineer with over 30 years of experience working for the Ministry of Transportation of Ontario in progressively more responsible positions. He has extensive experience designing all types of bridges using Canadian and American design codes. Throughout his career he has managed large, complex bridge projects and has saved millions through value engineering efforts. Currently he works as a senior bridge engineer for Amec Foster Wheeler, where he provides expertise on bridge design, code interpretation, and project management.

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Nicolas C. Theodor., P.Eng.
Senior Bridge Engineer
Core Skills
 Senior Bridge Engineer with over 30 years’ experience.
 Recipient of a PRISM award for Technical Expertise
 Recipientofan AMETHIST award for Outstanding Service to the Province of Ontario
Professional summary
Nicolas has recentlyjoined Amec Foster Wheeler and brings over 30 years’ experience working
for the Ministry of Transportation’s Bridge Office in various progressive positions. He has been
involved in program delivery from conception to completion and has provided technical expertise
and professional engineering opinions on all types of bridges from small simple span structures
to highly complexskewed and curved multi-span structures ofall types and he has designed
numerous highlycomplexbridges ofall types. From this experience and his twenty plus years
of involvement with the developmentof standards for the Canadian Standards Association
(CSA), he has extensive working knowledge ofbridge analysis and design using the Canadian
HighwayBridge Design Code (CHBDC) as well as other jurisdiction standards such as the
American Association ofState and HighwayTransportation Officials (AASHTO). He has
contributed greatly to the developmentof the structural Ontario Provincial Standard
Specifications (OPSS) and Special Provisions as well as the Structural Manual. He is often
asked to provide expert opinion on the interpretation of the Code,the Structural Manual and the
structural Specifications with regard to the design and construction ofall types of bridges.
Throughout his career he has had to deal with numerous contractors,governmentagencies, and
public interestgroups and has managed to setup win-win situations on a number oflarge and
high profile projects. He has a full understanding ofthe way governments work and knows what
it takes to get various stakeholders on board.
As is the case with all major projects,successful completion depends entirelyon having a multi-
disciplined dedicated team working towards a common goal and Nicolas fullyunderstands the
environmental,archeological,heritage, FirstNations consultation and navigable water
requirements. Moreover, he understands and can make provisions for the needs ofthe
travelling public as required by the projectin accordance with the applicable standards and the
Code.
The future direction of our industryis to fully develop alternative delivery models (public-private
partnerships etc.),value engineer projects and manage risks. His experience includes
numerous value engineering,risk managementand constructabilitystudies where millions of
dollars have been saved.
Employmenthistory
Amec Foster Wheeler, Senior Bridge Engineer,Burlington,On, Canada,2015 to present
Ministry of Transportation Ontario, Head,Bridge Design,St. Catharines,2012 to 2015
Ministry of Transportation Ontario, Head,Standards Engineer,St. Catharines,2005 to 2012
Ministry of Transportation Ontario, E.I.T./Bridge Design Engineer /Sr. Bridge Design Engineer,
St. Catharines,1985 to 2005
Ministry of Transportation Ontario, Member of Ontario Modular Bridge Analysis (OMBAS) Team,
St. Catharines,1982 to 1985.
Demetco Ltd., Structural Technologist.1980 to 1982.
Representative projects
Detailed Design of Bridge 12 of the Hwy 407/400 Interchange, Toronto, Ontario, Canada:
A four-span,post-tensioned deck with trapezoidal voids located in the top level of this four level
interchange.
Design Engineer ofrecord.
Detailed Design of Hwy 52 Underpass at Hwy 403, Ontario, Canada:
Twin, two-span post-tensioned decks with round voids designed for a 1,340,000 lb gross vehicle
weightHydro Transformer Transporter.
Years with Amec Foster
Wheeler: <1
Years’ Experience: 35
Education
Bachelor of Technologyin Civil
Engineering – Ryerson 1980
Professional qualifications
Professional Engineers of
Ontario (PEO) (1988)
Memberships/affiliations
Member of the CSA Canadian
HighwayBridge Design Code
Subcommittees:
 10 – Steel Structures
 4 – Seismic Design
 6 – Foundations
Member of the Structural
Planning Guidelines task force
(MTO).
Member of the Aesthetic
Guidelines Steering Committee
(MTO).
Member of the Canadian
Standards CAN/CSA
G40.20/G40.21 development
committee.
Member of various OPSS
committees such as OPSS 906,
907, 908,909, 910, 914, 920,
922, 1202,1203 and 1210.
Chair of the MTO Expansion
Joint and Bearing Group (MTO)
Former member ofnumerous
other (OPS) committees.
Location
Burlington,ON, Canada
Languages
English

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Design Engineer ofrecord.
Detailed Design of Hwy 401 Eastbound Collectors over the Rouge River, Pickering, Ontario, Canada:
A three-span,steel box-girder bridge with spans of58-70-58 metres.
Design Engineer ofrecord.
Detailed Design of the Hwy 4 Kettle Creek Bridges, St. Thomas, Ontario, Canada:
These two-span concrete deck on precastand prestressed concrete girder structures are,to my knowledge,the first integral
abutmentbridges thatalso have integral piers on single rows ofpiles. This conceptsaved hundreds ofthousands ofdollars by
avoiding large cofferdam and dewatering expenses. The unequal spans and abutmentheights required an iterative approach to
the earth pressure calculations and side swaycorrections.
Design Engineer ofrecord.
Preliminary and Detailed Design of the Hwy 417 Mississippi River Bridges, Arnprior, Ontario, Canada:
These six-span structures (54-85-65-65-65-40) are located in an area having the highestseismic zone rating in Ontario and
cross a Class A provincial wetland. The PreliminaryStructural Planning Reportrecommended incrementallylaunched steel
boxes. We were able to demonstrate to the Region and the concerned External Agencies that haunched I-girders can be lifted
in place,partially by using a barge over the river and the remainder from the access road used for the construction of the piers,
resulting in savings ofover $4,000,000.In addition,we used Friction Pendulum bearings to seismicallyisolate the structure (a
first in Ontario) and reduce the size of the substructure elements thus minimizing the permanentloss ofwetland.See attached
paper from the CSCE 2006 Conference.
Design Engineer ofrecord.
Paper published in the CSCE Conference on Medium and Short Span bridges,2006,Montreal, Quebec.
Detailed Design of the Burlington Street W-S Ramp over Red Hill Creek (Bridge #3), Hamilton, Ontario, Canada:
This single span (58 m) concrete deck on steel I-girders bridge is on a 130 m radius circular curve and is practically at the
length limit(for this type of structure) of the CHBDC’s applicability. A complete Finite ElementAnalysis (FEA) was carried out in
order to obtain the appropriate responses.
Design Engineer ofRecord.
Paper published in the CSCE Conference on Medium and Short Span Bridges,2010,Niagara Falls,Ontario
Detailed Design of the Hwy 417 - Madawaska River Bridge, Arnprior, Ontario, Canada:
This three span (90-130-90 metre) structure recentlydesigned and constructed,has the longestmain span for its type in
Ontario and possiblyCanada.It is located in an area having the highestseismic zone rating and the superstructure has been
seismicallyisolated from the substructure.The haunched steel I-girders have a depth of 5.5 m at the piers and 2.9 m at the
prismatic sections.Being heavily involved during construction allowed us to quicklysolve construction problems and ensure that
the structure was constructed on time and on budget.
Design Engineer ofrecord.
Detailed Design of the Pic River Bridge Replacement, Marathon, Ontario, Canada:
This three span structure,with 48-82-48 metre spans,was originallydesigned byothers and the tender price came in at twice
the estimate (well above the budget).We were asked to completed the re-design and prepare all the ContractDocuments in 5
months.We completed the re-design on time,it was re-tendered and the lowestbid price was practically identical to the
estimated price.The contract was awarded and the net savings to the tax payers of Ontario were well above $10 million.
Design Engineer ofrecord.
Detailed Design of the QEW Underpass at 7th
St., St. Catharines, Ontario, Canada:
This four-span concrete deck on Nebraska University(NU) 1400 girders replaces the existing four span post-tensioned deck.
The PreliminaryDesign Reportcalled for 6 lines ofNU-1200 girders;however,with minor changes to the vertical profile we
were able to utilize 5 lines ofgirders with substantial savings.We also utilized only straightstrands and also specified strands in
the web in order to introduce a better transition between the highlystressed (compressive) bottom flange and very lightly
stressed web to try and eliminate the typical cracking at the girder ends.
Design Engineer ofrecord.
VivaNext BRT Extension Project H2-West and H2-East, York Region, Ontario, Canada:
The VivaNext Bus Rapidway Program represents $1.4 billion (2009) in provincial transit investment and is an example of “The
Big Move in Action” – Metrolinx’s 25-year plan to implement a common vision for transportation in the Greater Toronto and
Hamilton Area.
Metrolinx designates York Region Rapid TransitCorporation (YRRTC) as the “program manager” responsible for implementing
the Project for and on behalf of Metrolinx. The Project consists of the design and construction of bus rapidways along two

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segments of the Highway 7 Viva east-west rapidway corridors in the City of Vaughan and the Town of Richmond Hill in the
Regional Municipality of York.
The first segment,H2-Weststarts at or about the intersection ofHighway7 and Bruce Street and extends easterlyon Hwy 7 to
Edgeley Boulevard. The total length of this section is approximately4.8km.
Design Engineer ofrecord for the Hwy 400 Underpass atHwy 7
Discipline Lead,Structures (other than stations)
Numerous other projects as Design Engineer and/or Checking Engineer of record.
Publications
In addition to a number of Technical Papers,Policy Memos and Guidelines ,Nicolas has authored a number ofbooks such as “A
Practical Guide to the Design of Post-tensioned Decks” and “Manual of Standard Short-span Bridges.
Some other examples of published papers:
“Design ofMississippi River Bridges overcomes Environmental,Foundation and Structural Challenges” – 7th
International
Conference on Short and Medium Span Bridges – 2006
“Structure Type and Selection Process for Short and Medium Span Bridges” – 8th
International Conference on Shortand
Medium Span Bridges – 2010
“Design and Construction ofa Tightly Curved Steel Plate Girder Bridge Approaching the Limitof Applicability of the Canadian
HighwayBridge Design Code” – 8th
International Conference on Shortand Medium Span Bridges – 2010
“The Madawaska Bridge Twinning” – CISC Advantage Steel – 2012