Bridge/structural engineering

I am a Chartered Structural Engineer by trade with more than 20 years of experience in engineering, including design, management, lectureship and research, in the United Kingdom and Middle East. The majority of my experience is in bridge engineering. This section provides a summary of my experience in this field with different companies. There is a photo gallery of the bridges I have designed, supervised their design, etc at the following address as well:

    Jacobs/CH2M ( from 2016 to 2018 ), Kings Hill, Kent, United Kingdom

    Area 4 Structures Team Leader

Led A-one+ Area 4 Structures Design Team undertaking resource management, team building with incorporated interviews and technical exams, technical supervision (concepts, buildability, CDM) and design/assessment/option study schemes lead on Highways England Area 4 structures schemes, development of design management processes and strategies, undertaking CDM 2015 Principal Designer duties, providing technical consultancy to Highways England, etc.

  • M20 Cradlebridge Railway Bridge (Team Leader/Technical Reviewer)

      Client: Highways England 

    Managed the in-house assessment and outsourced independent check of the structure undertaking technical lead, as well as the concrete refurbishment of a single span of 10.3 m carrying M20 motorway over Canterbury-Ashford-Ramsgate railway. Also, prepared BD 79 review of provisionally substandard structure with proposed installation and removal of interim mitigation measures, and managed concrete refurbishment studies and works.

  • A27 Stockbridge Footbridge Replacement (Team Leader)

      Client: Highways England 

    Stockbridge Footbridge 3D Model

    Stockbridge Footbridge 3D Model

    Managed the in-house design and outsourced independent check undertaking technical lead of a replacement 30.0 m main span of a steel truss footbridge over A27 trunk road, and a mitigation for the excessive oscillation of the structure. The existing bridge had a low headroom and been subject to high vehicle collision to its soffit.

  • M20 East Street Footbridge Replacement (Team Leader)

      Client: Highways England 

    East Street Footbridge 3D Model

    East Street Footbridge 3D Model

    Managed the in-house and outsourced different design/check teams for the demolition of the existing ramp, detailed design of the new two-span steel footbridge and its associated multi-span ramp, as well as undertaking technical lead on structure/soil-structure interaction, buildability and procurement, etc. The main span of the proposed structure is 43 m with a side span of 22 m and 85 m long ramp. The existing footbridge collapsed due to its low headroom and vehicle collision to its soffit.

  • Heavy Load Routes Structural Assessment (Team Leader/Technical Reviewer)

      Client: Highways England 

    Resourced and managed the assessment and independent check teams, as well as undertaking technical lead of a number of highway structures assessment, and technical review of the structures in accordance with BD 101/11, as well.

    Atkins ( from 2015 to 2016 ), Chelmsford, Essex, United Kingdom

    Senior Bridge Engineer

Undertook several roles such as lead designer/assessor, technical reviewer/advisor, design consultant, senior inspector, etc on a number of structure schemes for different clients.

  • Renewable Energy Noise Barriers (Technical Reviewer)

      Client: Highways England 

    3D Model

    3D Model

    Technical review of structural aspects of AIP’s for design of photovoltaic noise barriers on key locations along the M40. The scheme comprised developing cost-effective environmental barriers to reduce traffic noise for communities adjacent to major roads, together with the aim of developing innovative approaches that can achieve low carbon energy production which could be used locally. The AIP’s were originated by a group of structural, electrical and acoustic engineers.

  • Strengthening of Heathrow Airport Main Tunnel Q6 (Technical Checker)

      Client: Heathrow Airport 

    Design check of further strengthening of a multi-cell tunnel structure under the airport runway and taxiways to sustain known current and future (by 2019) aircrafts loading. The roof slab of the structure had been strengthened before by adding a new layer of reinforced concrete to the original soffit. However, recent inspections and assessment indicated the longitudinal shear capacity of the interface not to be adequate and require further strengthening.

  • M25 DBFO Substandard Structures Management (Technical Reviewer)

      Client: Connect Plus Structures 

    Technical review of ‘Initial Structure Option Reports’ (ISOR’s). The aim was to determine whether each structure is provisionally substandard and requires further assessment in accordance with BD 101/11.

  • Gosford Street Public Realm Enhancement (Design Consultant)

      Client: Coventry City Council and Coventry University 

    Provided structural consultancy, CDM, design and construction advice to Coventry City Council to comply with current standards as well as the landscape architects requirements. The scheme consisted of enhancing general landscape of the public areas within Coventry University by constructing new ponds, pedestrian ways, cycle shelter, etc.

  • Assessment of Ham Bridge (Assessment Team Leader)

      Client: Thames Water 

    Assessment technical lead of a half-through steel bridge over Thames River. The bridge is the only means of access to Ham Island; however, the soffit of the bridge superstructure is in poor condition. Although the bridge was determined to be incapable of sustaining full assessment live loading, possible interim measures and departure from standards were also investigated in a view of maintaining the access for Thames Water vehicles till its strengthening. Also, proposed a viable strengthening option with minimum possible construction time which later on, was implemented in detailed design and construction.

  • M25 Junction 28 (Design Team Leader)

      Client: Highways England 

    Preliminary design lead of several highway and railway structures including a number of viaducts carrying M25 and A12, a jacked subway under an existing railway, etc.

  • Wadi Bani Hinay New Bridge (Technical Reviewer)

      Client: Sultanate of Oman Ministry of Regional Municipality and Water Resources 

    Technical review of elastomeric bearings specifications and quality testing for a new highways bridge in the Middle East in accordance with relevant American Codes.

  • Pitsea Footbridge (Design Team Leader)

      Client: Veolia and Essex County Council 

    Design lead of reinforced concrete substructure and approached ramp of a piled footbridge over Network Rail tracks as well as technical review of soil-structure interaction, buildability and CDM review.

  • Structures and Tunnels Investment Portfolio Stage 2 (STIP 2) (Assessment Team Leader/Senior Inspector)

      Client: Transport for London 

    Assessment lead of Lambeth Bridge over River Thames as well as senior inspector of Lambeth and Vauxhall Bridges.

  • C122 Bored Tunnels (Senior Inspector)

      Client: Crossrail 

    Structural survey of Silvertown Footbridge in proximity of London City Airport. The structure is owned by Crossrail and spans over a new Crossrail dual-track line.

    Ramboll ( 2014 ), London, United Kingdom

    Senior Bridge Engineer

Carried out design lead and technical review on a number of structural schemes for different clients. Also, mentored a number of graduate engineers.

  • White City New Bridges (Design Technical Leader)

      Client: St James Development, TAA: Transport for London 

    Design technical lead and CDM compliance review of a half-through steel girder highways bridge and a composite steel girder pedestrian platform over London Underground Central Line.

  • Structures and Tunnels Investment Portfolio Stage 2 (STIP 2) (Technical Reviewer)

      Client: Transport for London 

    Review of available records and gap analysis to identify missing information, as well as recommendations for potential items of work to ensure reliable operation of all structures along A40 Westway in London.

  • Mentoring (Delegated Engineer)

    Assist a number of Graduate Members of the Institution of Civil Engineers (ICE) in achieving their chartership.

    Jacobs ( from 2013 to 2014 ), Chelmsford, Essex, United Kingdom

    Senior Bridge Engineer

As a senior bridge engineer, carried out a number of duties such as lead designer and technical reviewer/advisor mainly to Essex County Council. Also, contributed in improving technical excellence.

  • Rail Incursion Risk Reduction at Rayners Farm Bridge (Lead Designer)

      Client: Essex County Council and Network Rail 

    Feasibility study, CDM compliance and detailed design of earth retaining structures to act as foundation for full height anchors and also retain the existing slopes. Rayners Farm Bridge is a single span structure located in Little Clacton, Essex over a dual track high-speed railway with brickwork parapets and no continuous approach and departure safety barriers to the end of the parapets. The scheme comprised installation of new safety barriers with full height anchors over ground beams which have to stabilise and retain the existing vertical slopes.

  • Reconstruction of Roding (Small) Bridge Footway (Lead Designer)

      Client: Essex County Council 

    Detailed design of a new reinforced concrete slab integral bridge carrying the north footway of Roding Lane, Buckhurst Hill, Essex. The existing footway was over an existing instable extension to the original brickwork arch bridge. The scheme comprises removal of the existing extension, stabilising the embankment and construction of a new bridge adjacent to the original arch bridge.

  • Technical Review of Third Parties Design AIP’s for Acceptance On Behalf of Essex County Council (Technical Reviewer)

      Client: Essex County Council 

    Review of various design AIP’s by third parties including Design of A138 New Chelmer Viaduct, Design of New Chelmer Flood Relief Culverts, Retention of Caissons in Northern Approach Road – Phase 3 (NAR3), and Army and Navy Subway Northern Access Ramp on behalf of Essex County Council for compliance with CDM, current standards and Essex County Council requirements as well as approval of technical aspects of proposed schemes.

  • Halstead Depot Salt Barn (Technical Reviewer, Consultant, Senior Designer)

      Client: Essex County Council 

    Technical review and design verification of the structure on behalf of Essex County Council as well as proposal and detailed design of an alternative option which would result in a significant saving in the County Council budget with higher level of safety. The scheme comprised design and construction of a new piled barn on the top of a made ground embankment and close to the crest of an existing slope to store 700 tonnes of de-icing salt with an Essex Highways depot.

  • Assessment of Essex County Bridges (Project Manager, Technical Reviewer)

      Client: Essex County Council 

    Project management and technical review of assessment AIP’s of various Essex County bridges. The assessments would be carried out by India Office and the AIP’s had to be reviewed and submitted within a certain timescale.

  • Technical Excellence Support

    Mentored members of staff on conceptual design and detailed design in accordance with Eurocodes. Published technical blog posts entitled ‘Understanding An Engineering Project’ and administrated various technical forums including Bridge Engineering, Eurocodes for Structures, Mathcad, LUSAS, etc on the professional network of the company, and developing several design software packages. Also, designed technical tests in bridge engineering for senior engineers recruitment interviews.

    Ringway Jacobs ( from 2012 to 2013 ), Chelmsford, Essex, United Kingdom

    Senior Bridge Engineer

Following a promotion to Senior Bridge Engineer position and consequently, a TUPE transfer from Mouchel to Ringway Jacobs, continued working on various stages of structural schemes mainly for Essex County Council. Also, continued mentoring Anglia Ruskin University second year students of civil engineering.

  • Strengthening of Hercules Bridge (Senior Designer)

      Client: Essex County Council 

    Feasibility study and detailed design of a new reinforced concrete arch bridge to the intrados of an existing masonry arch bridge. The existing bridge was indicated to be inadequate to sustain full assessment live loading and the proposed strengthening would enhance its structural capacity to the full ALL. The scheme comprised fixing new reinforcement to the intrados of the existing arch with dowels and building a new structural layer by spray concrete operation. The new reinforced concrete arch would sustain the overall loads and the existing bridge would act as a permanent formwork.

  • Reconstruction of Fish and Eels Bridge (Senior Designer, Design Technical Leader)

      Client: Essex County Council 

    Feasibility study in compliance with British Waterway standards and technical lead of detailed design of a new bridge in Hoddesdon, Essex over River Lee Navigation.

  • Tortoise House Retaining Wall (Technical Checker)

      Client: Essex County Council 

    Detailed design verification of a piled retaining wall which would protect a residential building against any possible vehicle incursion from the adjacent highway.

  • Mentoring (Mentor) At ARU's Mentors Award

    At ARU's Mentors Award

      Client: Anglia Ruskin University 

    Mentored Anglia Ruskin University second year students of civil engineering. The aim was to introduce the working environment to the students and assist them in planning for their professional career. Also, presented the importance of mentoring at the university on behalf of the company.

    Mouchel ( from 2008 to 2012 ), Chelmsford, Essex, United Kingdom

    Bridge Engineer

Upon moving to the United Kingdom, worked as a Bridge Engineer on different stages of projects mainly for Essex County Council undertaking maintenance and refurbishment of their existing bridges as well as preliminary/detailed design of a number of new bridging structures.

Also, mentored the second year civil engineering students of Anglia Ruskin University. Uundertook SHEQ Champion and Environmental Coordinator duties as well.

  • Assessment of Essex County Box-Culverts and London City Bridges (Assessor)

      Client: Essex County Council and City of London 

    Re-assessed various highway bridges and culverts using yield line analysis and other rigorous methods to enhance the assessment rates of the structure. The re-assessments insured several provisionally substandard bridges to have adequate structural capacity without any requirements for further strengthening and thus, resulted in significant saving in the County Council budget.

  • Strengthening of Maldon Road and Ladywell Bridges (Designer)

      Client: Essex County Council 

    Feasibility study, detailed design, site liaison/support, and scheme finalisation for strengthening of piers of two number of three-span bridges against possible vehicle collision; as well as strengthening of deck transverse link beams, etc against accidental vehicle loading over the bridge.

  • Strengthening of Smiths Green Bridge (Designer)

      Client: Essex County Council 

    Detailed design, site liaison/support and scheme finalisation of a new structure supporting the existing weak bridge. The existing bridge was a masonry arch structure with 3-tonne weight restriction. The proposed strengthening enhanced its structural capacity to the full ALL. The scheme comprised fixing new reinforcement to the intrados of the existing arch with dowels and building a new structural layer by spray concrete operation. The new reinforced concrete arch sustains the overall loads and the original bridge acts as a permanent formwork.

  • Roscommon Way Extension New Structures (Designer)

      Client: Essex County Council 

    In front of a bridge I designed on Roscommon Way Extension

    In front of a bridge I designed on Roscommon Way Extension

    Option study, feasibility study and detailed design of new reinforced concrete voided slab integral bridges and plant protection structures in Canvey Island. The alluvium subgrade of the site necessitated specific considerations in regard with the soil-structure interaction. Therefore, also carried out technical review of the approaches for implementing geotechnical considerations in design.

    Aerial view of Roscommon Way Extension

    Aerial view of Roscommon Way Extension

  • Refurbishment of Pitsea Flyover (Designer)

      Client: Essex County Council 

    Detailed design for refurbishment of various reinforced concrete piers and retaining walls.

  • New Sutton Ford Bridge (Designer)

      Client: Essex County Council 

    Detailed design of a new bridge. The superstructure consists of precast prestressed concrete beams with insitu reinforced concrete slab and is integral with reinforced concrete bearing piles.

  • Safety, Health, Environment and Quality (Environmental Coordinator/SHEQ Champion)

      Client: Mouchel 

    Undertaken the duties of Environmental Coordinator and SHEQ Champion to ensure full compliance of the work environment with relevant regulations and to improve the culture of SHEQ within the office.

    Hexa Consulting Engineers ( from 2003 to 2008 ), Tehran, Iran

    Bridge Design Team Leader (   from 2007    to 2008  )

Promoted to the Bridge Design Team Leader position in 2007 while undertaking the duties of a Bridge Design Engineer at the same time. As a team leader, managed a team of five structural engineers and three draftsmen carrying out a number of major bridge design schmes mainly for Iran’s Ministry of Roads and Transportation.

During the period, served the company as the IT Department Leader especially, supervising the the new IT network design and implementation as well.

    Bridge Design Engineer (   from 2003    to 2008  )

During my PhD studies, started my first job as a Bridge Design Engineer. Previously, studied bridge engineering during my bachelor course at Amir Kabir University of Technology. The vacancy was my first opportunity to achieve some qualified experience in what I studied before.

During the period, carried out preliminary/detailed design of a number of major prestressed/reinforced concrete and box-girder highway/railway bridges for Iran’s Ministry of Roads and Transportation as well as a number of local authorities. Within 5 years of working for the company, promoted to the Team Leader position, too.

A descriptive album of my designed bridges during this perios, as well as a recommendation letter by the technical director of the company can be found at the following links:

  • Mianeh – Bostanabad – Tabriz Dual-Track Railway Bridges (Designer, Design Supervisor, Project Manager) Launching box-girders

    Launching box-girders

      Client: Iran's Ministry of Roads and Transportation 

    Detailed design, project management (design stage) and design supervision of eight number 40 m multi-span steel box-girder bridges over valleys of 30-50 m deep on a design and build scheme.

    One of the bridges on Mianeh-Bostanabad railway

    One of the bridges on Mianeh-Bostanabad railway

  • Kermanshah – Bisotoun Eastern Bypass Bridge (Designer, Project Manager)

      Client: Iran's Ministry of Roads and Transportation 

    Detailed design and design stage project management of a 30 m span voided slab reinforced concrete highway bridge.

  • Bridges of Second Runway of Chalus – Noshahr Bypass (Designer, Project Manager)

      Client: Iran's Ministry of Roads and Transportation 

    Preliminary design and design stage project management of three number 2x 30 m spans highway bridges.

  • Chalus Grand Bridge (Designer, Project Manager)

      Client: Iran's Ministry of Roads and Transportation 

    Detailed design and design stage project management of a highway bridge superstructure comprising 8x 40 m precast prestressed concrete beams.

  • Esfahan – Azna Single Track Railway Bridges (Designer)

      Client: Iran's Ministry of Roads and Transportation 

    Preliminary design including hydraulic studies of three number 25 m multi-span bridges.

  • Chabahar – Fahraj Single Track Railway Bridges (Designer)

      Client: Iran's Ministry of Roads and Transportation 

    Preliminary design including hydraulic studies of seven bridges comprising 25 m multi-span precast prestressed concrete beams.

  • Dezful 5th Highway Bridges (Designer)

      Client: Municipality of Dezful 

    Detailed design of a 28.35 + 9x 45.30 + 28.35 m bridge superstructure comprising precast prestressed concrete segments installed in place using balanced cantilever method.

  • Mond 3rd Highway Bridges (Designer)

      Client: Roads and Transportation Organisation of Bushehr Province 

    Detailed design of a 28x 25.0 m multi-span reinforced concrete bridge over River Mond.

  • Jolfa Highway Bridge (Designer)

      Client: Iran's Border Terminals Organisation 

    Detailed design of a reinforced concrete multi-span 250.62 m long bridge over River Aras connecting Nakhichevan Autonomous Republic and Iran.

    Pars Padir Consulting Engineers ( 1998 ), Tehran, Iran

    Student Engineer

Carried out detailed design and verification of a number of steel structure residential buildings during my graduate studies.


Lectureship and academic experiences

Prior to diving into bridge engineering, I was a keen academic undertaking engineering researches as well as lectureship at universities, workshops and even schools. Also, my first source of income during my graduate studies was authoring books in mathematics. This section neither covers the details of courses I lectured, nor the researches I carried out. For such details, please refer to the following links. Also, my teaching experiences at schools are not included.

    University of Tehran ( from 2000 to 2007 ), Tehran, Iran

    Researcher (   from 2000    to 2007  )

Undertaken a number of researches for University of Tehran Vice Chancellor for Research and Iran Aircraft Manufacturing Industry (HESA).

    Workshop Lecturer (   2005  )

Lectured a number of short courses on bridge engineering to the Iran's Ministry of Roads and Transportation members of staff on behalf of University of Tehran at Science and Technology University of Iran.

    Contract Lecturer (   from 2003    to 2004  )

Lectured engineering courses to the graduat students at the Department of Industrial Design, Faculty of Fine Arts.

    Teacher Assistant (   from 2002    to 2004  )

Lectured (as TA) to the master degree students at the Department of Civil Engineering, Faculty of Engineering.

    Amir Kabir University of Technology ( from 1996 to 1998 ), Tehran, Iran

    Teacher Assistant (   from 1996    to 1998  )

Lectures (as TA) to the graduate students at the Faculty of Civil and Environmental Engineering.