Bridges
Consulting, design, construction supervision & rehabilitation of bridges across all terrain: road, rail, land, and water.
Global best practice, local insight Solutions and consulting led by technology, engineering, digital transformation and decades of experience.
360° Consulting • Research & Development • Innovation • Digital transformation
360° support across every phase of bridge development
Project masterplanning, digital technologies
Feasibility & Analysis, Impact Assessments
Design
Independent design check, value engineering
• We provide policy planning, advice, analysis and research to guide investment decisions and project planning and implementation.
• Digital Technologies and Transformation such as Smart Buildings Intelligent Lighting, Monitoring and Predictive Operations and Maintenance.
• Access to over 8,000 technology professionals, our solutions find that competitive edge that ensures value and resilience.
• With over 70 disciplines, we combine all the skillsets needed in one consulting partner.
• We carry out comprehensive feasibility studies considering the technical, environmental, social and economic aspects of decision-making.
• Site investigations including geotechnical assessments, tunnelling (where required), design basis development, traffic studies, ship simulation analysis, seismic analysis, hydraulic, geological, coastal modelling, and wind assessment, dynamic analysis and RSI analysis.
• Development of design basis as well as life-cycle design.
• Concept design
• Preliminary design
• Detailed design
• Tender /Bid design
• Our independent assessments are to help ensure on-time, onbudget delivery and provide resilience, sustainability, value (cost and programme) and health & safety.
• Category III Check
• Design Supervision
• Value Engineering
• Owners Engineer
Construction management, Engineering, temporary works
• Construction method selection, sequencing, erection schemes, logistics, temporary structures.
• Project Management includes procurement processes, contract, progress monitoring, cost control and risk management and Health & Safety
• Stakeholder engagement including authorities, councils and communities. We bridge the gap across all parties across throughout the project
Construction supervision Operations & maintenance
• Managing all disciplines materials and functions on-site in the preconstruction and construction phases.
• Ensuring project completion without defects and and best-inclass sustainable delivery.
• We support both short and long-term operation, maintenance, and rehabilitation works with structural evaluations
Rebuild & Redevelopment
Decommissioning
• Structural Assessments,
• Design of strengthening works.
• Technical evaluations including visual inspections, load capacity and bridge safety.
• We design to allow for increased capacity and the replacement of key structural elements
Assessing the various options, risks and costs involved in providing removal options
Road Bridges/Vehicular
• Overpasses
• Underpasses
• Viaducts
Railway Bridges
• Metro line Light Rail
• Flyover bridges
• Conventional railway bridges
• High-speed railway viaducts
Foot Bridges/Pedestrian
• Active Travel Bridge
Bridge Types
• Temporary • Composite Bridge • Suspension Bridge
• Cable-Stayed Bridge
• Extrados Bridge
• Arch Bridge
• Girder Bridge
• PSC Box Girders
• Segmental
• Steel Truss Bridge
• Movable bridge
Aqueducts TYPOGRAPHY
Services - we find fresh perspectives across the lifecycle
Planning, investigations
• Planning Advice
• Feasibility Studies
• Project scoping
• Project charter & project execution plan
• Design Basis
• Concept Design & Evaluation
• Full design intent, performance and budget
• Renders, animations: 3D to 8D BIM Models
• Concept Design & Lifecycle design
• Operational risk and safety
• Geotechnical engineering
Special studies
• Geological, wind and hydraulic assessments
• Hydrological modelling
• Dynamic analysis
• RSI analysis
• Seismic analysis
• Ship simulation studies
• Traffic studies
• TCFD Analysis
• Nonlinear modal time history analysis (FNA)
• Modelling coastal processes
• Metocean Data Analysis
• Wave Penetration Modelling
• Spectral Wave Analysis
• Extreme Water Level Assessments
• Cyclonic Tsunami Modelling
Impact
assessment
• Environmental Impact Assessment
• Social impact
• Planning impact
• Traffic impact
• Cost Assessment (Lifecycle)
• Operational risk and Safety
Design & design supervision
• Tender Design
• Detailed Design
• Marine Foundation design
• Marine structures, walkways, jetties
• Main Navigation bridge design
• Approach bridge/viaduct bridge design
• Proof checking
• Owner’s Engineer
• Technical follow-up
• Design of ship impact protection
• Landscaping & Illumination
• Bridge components
• Tunnel components
• Embankments
• Public Realm, walkways, pedestrian active life structures
• Connection to Rail, Metro, Road, Highway
• Sustainable Engineering
• Value Engineering
• Cathodic Protection
• Precast substructures
• Traffic management systems
• Toll collection stations
• Electrical and mechanical design
Project management
• Programme Management
• Document Management
• Design coordination
• Construction management
• Contract administration
• Employers representative
• Stakeholder management
• Supply chain management
• Procurement oversight / management
• Risk management and monitoring
• Commercial monitoring
• Value engineering
• Procurement Support: vetting & selecting suitable design and sub-consultant partners
• Designing and managing the contractor tender and award phases
• Tender documents
• Scheduling
• Contracting
Construction supervision
• Technical assistance throughout construction.
• Independent third-party verification and certification
• Site supervision in accordance with technical and construction legal requirements
• Continuous supervision of construction works (quality, schedule and budget)
• Testing materials, systems and installations
• Delivered documentation supervision
• Technical and legal advice, and assessment consulting
• As-built documentation
Maintenance & rehabilitation
• Inspection, testing and rehabilitation design
• Design of strengthening works
• Reliability-Centered Maintenance II
• Refurbishment , widening and strengthening of existing bridges
• Operation and emergency planning
• Inspection and maintenance systems
• Lifecycle cost optimization
• Sustainability
• Structural Monitoring
Digital transformation
• 3D to 8D BIM Models
• AI, AR and Digital Twins
• Predictive Operations & Maintenance
• Digitalisation of processes and software development, the cloud
Ayesa has advanced technological capabilities in artificial intelligence, data analytics, process automation and robotics, as well as cloud-native application development. Our expertise includes Sensor networks, Digital Twins. Flexible Design using advanced intelligent materials and Retrofitting intelligent structural health monitoring systems to existing structures as well as the design of new structures with embedded structural health monitoring systems.
Ayesa - Sectors
Connected Thinking across
We collaboratively devise solutions to tackle urbanisation digitalisation, and contribute to the advancement
A global infrastructure, smart cities
across Sectoral disciplines
urbanisation challenges, harness the potential of advancement of sustainable societies.
Transportation - At a Glance
Ayesa is a transportation leader in bridges, highways, and rail and metro, working on some of the most ambitious projects globally.
Planning
Designing
Project Management
Contractor supervision
Strengthening & Rehabilitation
Digital Transformation & Support - smart bridge technologies
An iconic and unique bridge legacy
Project References
Main Projects
Bridges & Viaducts
Project References
Alcántara Viaduct, Spain
370 m (2 spans)
Double bow-string type arch
Detailed Design
PMC / Construction Supervision
Spain
6.5 km
Symmetrical cable-stayed bridge
Tender Design
Detailed Design
PMC / Construction Supervision
Panama City, Panama
1.48 km (26 spans)
Rail Concrete Arch
9th Largest concrete span in the World
Technical Assistance to Construction
Management
Caceres, Spain
Detailed Design PMC /Construction Supervision
Abbas IBN-FIRNAS Bridge
Cordoba,
4th Bridge, Panama City
Alcantara Viaduct
Thumamah Iconic Bridge
280 m (5 spans)
Box Section + Truss
Detailed Design
Riyadh, Saudi Arabia
Chapina Bridge
Dragon Bridge
123 m (2 spans)
structure and parallel wishbone arches lowered
Detailed Design
Seville, Spain
123.5 m (4 spans)
body: Egg-shaped section
Seville, Spain
ALCÁNTARA VIADUCT
ROLE: Technical Assistance to Construction Management
CLIENT: Adif
Nestled along the High-Speed Railway Line connecting Madrid and Extremadura, the Alcantra Viaduct stretches an impressive 1,488 meters in length. Its design is masterfully orchestrated to accommodate the crossing of the Tagus River through a breathtaking 324-meter span arch. This architectural viaduct is further distinguished by its deck, which is neatly segmented into six 54-meter spans above the arch. Flanking the majestic arch, the viaduct transitions smoothly into approach spans of 60 meters, complemented by two 57-meter transition spans at each abutment, seamlessly integrating with the landscape.
The viaduct’s crowning glory is undoubtedly the arch. Crafted with a gracefully curved directrix, it features a box girder design that varies in depth from 3.50 meters at the edges to 4.00 meters at its core, presenting a striking silhouette against the sky. The arch widens from 6.00 meters at its peak to 12.00 meters at the abutments, showcasing structural ingenuity and elegance.
With its main span of 324 meters, the Alcantra Viaduct not only becomes an iconic structure but also sets a new benchmark, surpassing the Bridge over the Contreras Reservoir by 60 meters to become the longest high-speed railway concrete arch bridge in Spain.
Bridging Nature
IBN FIRNAS BRIDGE | CORDOBA | SPAIN
SECTION: N-IV AND N-437 HIGHWAYS
ROLE: DETAILED DESIGN, CONSTRUCTION MANAGEMENT
A striking and dramatic bridge dedicated to the legendary engineer from Cordoba, which resembles a bird in flight. The Abbás Ibn Firnas is a Tied-Arch Bridge with steel reinforced concrete composite using almost 6 million kg of steel.
PROJECT STATISTICS
Typology:
Dimensions:
Project Timeline:
Tied-Arch Bridge
365m long, 30.4 meters wide, 6 traffic lanes of 3.5 metres each
Client: Ministry of Transport November 2003-2011
Composition: Steel reinforced concrete composite
Capital Cost: €67m (approx)
Pile Foundations: 1,000.00m
Structural Steel: 4,100.000.00kg
Flying without wings
CRISTO DE LA EXPIRACIÓN BRIDGE (CACHORRO) SEVILLE
ROLE: PROJECT MANAGEMENT & DETAILED DESIGN
The founder of Ayesa, José Luis Manzanares Japón designed this 225-metre deck-arch bridge. This urban structure is known as the Cristo de la Expiración Bridge (or the Cachorro Bridge) and serves both vehicular and pedestrian traffic. The chronology of this bridge dates back to 1948 when the river became blocked, creating a landmass called the Chapina Blockage, In 1992, the Chapina river earth-plug/landmass was redeveloped into a new bridge to cater for increased vehicular traffic and a new bus station. Inspired by the Pont Alexander III Bridge in Paris, the bridge is of metallic structure, with lower parallel wishbone arches with an overhead deck of orthotropic sheets, and dual labelled pylons.
PROJECT STATISTICS
Main Span:
Total Length:
Project Timeline:
Client: Department of Public Works and Transport, Junta Seville
Chapina blockage: 4 km of riverbed removed
Foundation:
The arches are supported by 600 m² and 22 m cut-off enclosures
Structure: 2 lowered arches spanning 130 metres with no underwater support, which supports a deck of 225 m x 30 m x 30.5 m wide.
Sunset over the Sevilla skyline
PUENTE DEL DRAGÓN, “DRAGON BRIDGE” | SPAIN
ROLE: DESIGN, TENDER, PROJECT MANAGEMENT
Designed by the founder of Ayesa, José Luis Manzanares Japón, this structure was inspired by local history and culture. This unique design won the public vote in response to a design competition. This bridge is located in the historical town of Alcala de Guadaira, 9km from Seville city. “The Guardian of the Castle” consists of a four-span bridge supporting a curve in the vertical plane, the directrix of which creates the figure of a dragon. In contrast, the bridge’s two carriageways sit on both sides of the directrix. In 2020, Spain’s postal service issued a limited-edition stamp with an image of this iconic bridge. The Dragon Bridge undulates above and below the street level, straddles two hills and is the first figurative bridge in Spain and Europe. The beauty of the construction is indisputable, as well as the simplicity of its structural performance, where a central beam is supported on three pillars and two extremes, upon which the pedestrian walkways have been cantilevered.
PROJECT STATISTICS
Length:
Structure:
Project Timeline:
123m long, 4-span bridge supporting a curve
2 x arches (span 43m) and 2 semi-arches
Client: GIASA - Gestión de Infraestructuras de Andalucía, S.A. March 2002
Capacity:
4 traffic lanes, 2 pedestrian walkways
Foundation The dragon body is 2m wide which transmits its load to 12 piles of reinforced concrete which is 1,500 mm wide and 20m deep.
SECOND VIVEKANANDA BRIDGE (NIVEDITA SETU) | INDIA
ROLE: OPERATIONS & MAINTENANCE MANAGEMENT, TECHNICAL ASSISTANCE
The caretaking of bridges changes over time. Every stage has different requirements to ensure they last their entire lifecycle; they could typically include services such as surveying and inspection, Intelligent Bridge Life Systems, corrosion protection and strengthening. Our remit included the inspection, assessment, and advice/recommendations on rehabilitation, protection/strengthening and additional extensions. The following elements of the structure were rigorously assessed and checked as part of our brief: the bridge, the 3.65km Howrah approach viaduct, the 1.57km Kolkata approach viaduct, ROB, RUB approach embankment, culverts, underpasses and the toll plaza. The main bridge comprises 6 traffic lanes (29m wide deck) and 880m long (extradosed cable-stayed segmental bridge). Click here for more project information.
PROJECT STATISTICS
Typology:
Multi-span extradosed bridge
9 spans (55m x 1 + 110m x 7 + 55m x 1), 880.0m long
Howrah Approach: Viaduct- 2 x 3-lane Precast segmental in-situ and total length of 2 x 378m.
Kolkata Approach: Viaduct- 2 x 3- lane to 2 x 4- lane 2x280m length; 2-lane to 3-lane 435m length (Ramp A); 2-lane to 3-lane 435m length (Ramp B). 2-lane of 800m (Ramp C). 2-lane 790m length (Ramp D).
Project Timeline:
Main Bridge: May 2018
Client: NHAI ( National Highways Authority of India)
An Indian approach
Operations and maintenance of one of the largest multi-span extra-dosed bridges in the world
Crossing Panama
The bridge of the future is a destination in itself
PANAMA CANAL BRIDGE | PANAMA
ROLE: INDEPENDENT ENGINEER, DESIGN REVIEW, PROCUREMENT SUPPORT, SUPERVISION AND COORDINATION
The Fourth Bridge over the Panama Canal is being constructed on the north side of the existing Bridge of the Americas to connect west Panama with Panama City. The new bridge will relieve vehicular traffic congestion and increase freight transport capacity and improve vessel navigation. It is estimated that more than 70,000 vehicles will use the bridge and that it will benefit 1.7 million people.
PROJECT STATISTICS
Typology:
Project Timeline:
Cable-stayed main bridge
Client: Joint Venture Panamá Cuarto, Puente (China Harbour Engineering, Co & China Communications, Construction Company) 2018-2021 (stalled at present)
Channel: 75m free vertical and 350m wide clearance over the navigation channel to accommodate vessels
Dimensions: 3km long. The main crossing consists of 1,010m of the cable-stayed main bridge with a 510m main span, and 1,500m of approaches.
Structure: 6 traffic lanes, 2 metro lines
Capital Cost: €1.5bn (approx)
ROYAL COMMISSION BRIDGES
ROLE: GROUND INVESTIGATION, DETAILED BRIDGE DESIGN & CONSTRUCTION METHODS
The Royal Commission in Jubail (RCJ) were constructing two new bridges: one from Jalmudah to Al-Batinah Island (Battinah) and the other from Dareen to a nearby island (Dareen). Batinah is a 4-lane bridge and Darren is a 2-lane bridge designed to replace a smaller existing bridge to link the mainland to oil production facilities. Both bridges have been designed with a 60m main span to clear a 40m navigational channel to allow safe navigation of vessels up to 15m in length. ByrneLooby in association with FAEC were commissioned to provide detailed design of the bridges, the approach causeways, the marine works including lining the channel, protection for the piers, and navigation aids. Detailed assessments included a detailed study for the form, shape and location of both bridges. Extensive geotechnical investigations were carried out to ensure the optimum piling solution was found for all piers in varying ground conditions. Extensive studies investigated possible construction methods for the pile caps and piers in the marine environment. Both bridges were designed using post-tensioned concrete box girders of uniform depth – each carrying 2 lanes of traffic, with inclined piers supporting the spans over water and vertical piers for spans over mud flats. Services included: bridge structures, causeways, embankments, shoreline protection, roads, deep foundations, subgrade improvements, design vessels and collision loading. We also supervised the ground investigation works.
PROJECT STATISTICS
Main Span:
Project Timeline:
60 m
Client: Royal Commission Jubail 2018-2020
Capital Cost Undisclosed
Ayesa concept designs
Design without borders
Our most iconic Bridge Projects
IBN-FIRNAS Bridge (Cordoba, Spain).
Revolving Bridge, F1 Circuit, Valencia (Spain).
“El guardián del Castillo” Bridge. Alcalá de Guadaíra (Seville, Spain).
Zumarraga Viaduct, HST Vitoria – Bilbao - San Sebastián (Basque Country, Spain).
Bridge over the río Odiel, Motorway Huelva – Portugal (Spain).
“La Silla” Bridge (Monterrey, Estado de Nuevo León, Mexico).
Bridge over the Navia and Anleo rivers (Asturias, Spain).
Bridge over de Carrizal river “Los Monos III” in Villahermosa (Tabasco, Mexico).
Viaduct 51 “Ruta Norte Santander” road, cantilever bridge of 120m of main span (Colombia).
Ayesa is a leading global technology, and engineering consulting services provider. We work with public and private clients to provide cutting-edge services, connecting our 13,000 professionals across 80 disciplines to provide resilient and future-ready solutions. Our people are drawn from some of the world’s leading engineering and technology professionals helping clients achieve that competitive edge through digital transformation & engineering in the infrastructure, aviation & defence, energy, water, and architecture sectors.
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