Quality Steel Bailey Bridge & Modular Steel Bridge Factory

1. What is the PNG Highlands Highway and Why Is It So Important? The Papua New Guinea (PNG) Highlands Highway stands as a flagship transportation infrastructure project under the Belt and Road Initiative, and one of the most critical transportation corridors in Papua New Guinea. Located primarily in the Eastern Highlands Province, this vital artery serves approximately 60% of PNG’s total population, forming the economic lifeline of the country’s northwest region. It also represents the longest highway project our company has supported in Papua New Guinea, marking a milestone in our overseas infrastructure contributions. Phase 1 of the project, stretching 430 kilometers, commenced construction on February 1, 2019. During execution, the engineering team overcame extraordinary challenges, including extensive soft foundation treatment in swampy terrains and complex humus soil stabilization in primary rainforest areas. Through rigorous planning and technical innovation, the project was successfully completed and opened to traffic as scheduled. 2. What Extreme Geological Challenges Does Phase 2 Face? Currently, Phase 2 is underway across ground dominated by deep, unmineralized humus—organic soil with extremely poor stability, ultra-high water content, and high geological disaster risk. Local engineers vividly describe the condition as “inserting chopsticks into tofu.” To establish stable and reliable foundations, the project team adopted high-friction friction pile technology, driving piles more than 40 meters deep into the humus layer. This solution ensures outstanding structural stability, long-term operational safety, and extended service life for bridges and road sections alike. 3. Why Is the Highlands Highway Called a “Road of Prosperity”? Once fully operational, the upgraded Highlands Highway will drastically improve mobility for local communities. It will streamline the distribution and marketing of key local products such as Juncao grass and upland rice, unlock the development potential of agricultural and mineral resources along the route, drive robust regional economic growth, and strengthen PNG’s national road network. In every sense, this highway is a genuine “Road of Prosperity” for the people of Papua New Guinea. 4. What Exactly Is a Bailey Bridge? A Bailey bridge is a modular, prefabricated steel truss bridge originally developed for military and emergency use, now widely applied in permanent, temporary, and emergency civilian projects. It consists of standardized steel truss panels, cross beams, deck panels, and connecting members, which can be quickly assembled on site without large machinery. Key advantages of Bailey bridges include: Lightweight structural components but high bearing capacity Fast assembly and disassembly, greatly shortening construction periods Flexible combination to adapt to different spans and widths Strong adaptability to complex terrains such as soft soil, marshes, and mountainous areas Reusable and cost-effective Due to these benefits, Bailey bridges have become one of the most widely used modular steel bridge solutions in global infrastructure construction, disaster relief, and highway upgrading projects. 5. Who Is EVERCROSS Bridge and What Role Did We Play? As an integrated industry-and-trade steel structure bridge export enterprise, EVERCROSS BRIDGE TECHNOLOGY (SHANGHAI) CO., LTD. brings professional R&D capabilities and extensive bridge manufacturing experience to global infrastructure projects. Headquartered in Shanghai with an advanced production base in Zhenjiang, Jiangsu, we design and manufacture steel bridges that fully comply with major international bridge design codes, including Australian, European, and American standards. For the challenging PNG Highlands Highway program, we provided customized Bailey bridges engineered in strict accordance with Australian bridge design standards, delivering robust, modular, and rapidly deployable bridging solutions that became indispensable to the project’s progress. Our Bailey bridge systems are precision-engineered to meet the stringent requirements of the AS 5100 series specifications and AS 4100 steel structure standards, ensuring compliance with the technical, safety, and durability norms widely adopted in Papua New Guinea and the South Pacific region. These modular steel truss bridges offer exceptional advantages: lightweight yet high-strength components, fast factory prefabrication, simple on-site assembly, strong adaptability to soft and complex foundations, and reliable performance under heavy loads and harsh tropical climates. For a project facing soft humus soils, remote locations, and tight construction schedules, EVERCROSS Bailey bridges provided a practical, time-efficient, and cost-effective bridging solution that kept the highway construction on track. Beyond technical compliance, our support for the PNG Highlands Highway reflects our long-term commitment to infrastructure development in emerging economies. We understand that reliable bridges are more than structures—they are connectors of people, markets, and opportunities. By delivering high-quality, code-compliant steel bridges to remote and challenging regions, we help turn infrastructure blueprints into tangible economic and social benefits. Our integrated model combines Shanghai-based R&D and commercial expertise with Zhenjiang’s large-scale, precision manufacturing capacity, enabling us to control product quality, optimize delivery lead times, and provide comprehensive after-sales support for international clients. Whether for emergency replacement, temporary access, permanent crossing, or support during highway reconstruction, our Bailey bridges and steel truss bridging solutions have been widely used across Asia, Africa, and the Pacific Islands. Each project reinforces our reputation as a trusted partner capable of meeting diverse international standards and extreme on-site conditions. Q&A – Frequently Asked Questions by International Clients Q: What international standards can your bridges meet? A: Our steel bridges, including Bailey bridges, are designed and manufactured to comply with Australian standards (AS 5100, AS 4100), European codes (Eurocode 3/4), American standards, and other widely recognized international bridge specifications, ensuring full acceptance by local authorities and main contractors. Q: What is your production and delivery capacity for overseas bridge projects? A: With a large modern manufacturing base in Zhenjiang, Jiangsu, we maintain stable mass-production capacity. Typical Bailey bridge and modular steel bridge orders can be produced and ready for shipment within 4–6 weeks, supported by professional packaging and global logistics coordination. Q: Can your bridges adapt to soft soil, high humidity, and tropical climate conditions? A: Yes. Our bridges feature optimized structural design, high-friction foundation compatibility, and durable anti-corrosion coating systems suitable for C4–C5 high-corrosion environments, ensuring stable performance in soft foundations, high humidity, and coastal or tropical rainforest climates. Q: Do you provide on-site installation guidance and after-sales service? A: We offer complete overseas support, including detailed installation manuals, video tutorials, and on-site technical guidance by experienced engineers. We also provide long-term after-sales service, spare parts supply, and maintenance training to ensure reliable long-term operation.

Southeast Asia, a region characterized by diverse terrain—including dense rivers, vast deltas, mountainous areas, and coastal plains—and a tropical climate with heavy rainfall and high humidity, faces unique challenges in long-span bridge construction. Long-span bridges are critical to connecting scattered regions, promoting trade, and improving transportation infrastructure in countries like Indonesia, Malaysia, Thailand, Vietnam, and the Philippines. When it comes to selecting the optimal bridge type for these long-span projects, steel truss bridges stand out as the unrivaled choice, thanks to their superior structural performance, adaptability, and cost-effectiveness. As a professional trade and manufacturing foreign trade enterprise specializing in steel truss bridges, EVERCROSS BRIDGE TECHNOLOGY (SHANGHAI) CO., LTD. has a professional bridge R&D center in Shanghai and a manufacturing base in Zhenjiang. Leveraging advanced R&D capabilities and mature production technology, we have been providing high-quality steel truss bridge solutions tailored to Southeast Asia’s unique needs, helping the region build durable, efficient, and reliable long-span transportation links. A steel truss bridge is a structure composed of steel members connected by joints, forming triangular truss units that distribute loads evenly. This unique structural design endows it with unparalleled advantages in long-span applications, especially in Southeast Asia’s complex environment. Unlike concrete bridges or other bridge types, steel truss bridges can easily span hundreds of meters while maintaining structural stability, making them ideal for crossing wide rivers, deep valleys, and busy waterways—common scenarios in Southeast Asia. The first key reason steel truss bridges are the best choice for long-span projects in Southeast Asia is their excellent span capacity and structural efficiency. Long-span bridges in the region often need to cross wide rivers (such as the Mekong River and Chao Phraya River) or connect coastal areas separated by straits, requiring a bridge type that can cover large distances without excessive intermediate supports. Steel truss bridges adopt a triangular truss structure, which has a clear force transmission path and high structural stiffness, enabling them to achieve spans of 100-500 meters or even longer. Compared with concrete bridges, steel truss bridges have a lighter self-weight relative to their load-bearing capacity, reducing the difficulty and cost of foundation construction—particularly crucial in Southeast Asia, where many areas have soft soil foundations or are prone to floods. With the support of EVERCROSS’s Shanghai R&D center, our steel truss bridges are optimized for long-span performance, ensuring stability and safety even under extreme loads. Secondly, steel truss bridges are highly adaptable to Southeast Asia’s tropical climate and complex terrain. The region’s high temperature, heavy rainfall, high humidity, and frequent typhoons pose severe tests to bridge durability. Steel truss bridges, when properly treated with anti-corrosion technologies (such as galvanizing and anti-rust painting), have excellent corrosion resistance, which can effectively resist the erosion of humid air, rainwater, and salt spray in coastal areas. EVERCROSS’s steel truss bridges, manufactured in our Zhenjiang factory, undergo strict anti-corrosion treatment, ensuring a long service life of more than 50 years in Southeast Asia’s harsh environment. In addition, steel truss bridges can be flexibly designed to adapt to different terrain conditions—whether it is a river crossing, valley spanning, or coastal connection, they can be customized to match the site’s specific needs. Their modular design also allows for construction in difficult-to-access areas, where large construction equipment is hard to reach, which is common in Southeast Asia’s mountainous and remote regions. Thirdly, steel truss bridges offer superior construction efficiency and cost-effectiveness, which are critical factors for long-span projects in Southeast Asia. Many countries in the region are developing rapidly, and infrastructure projects require fast construction cycles to meet the growing transportation needs. Steel truss bridges adopt a prefabricated modular design—most components are manufactured in factories (such as EVERCROSS’s Zhenjiang base) with high precision, then transported to the construction site for assembly. This prefabrication method greatly shortens on-site construction time, reduces the impact of on-site construction on the surrounding environment and traffic, and lowers labor costs. Compared with concrete long-span bridges, which require on-site pouring and long curing times, steel truss bridges can shorten the construction period by 30%-50%, significantly reducing project costs. For Southeast Asian countries with limited construction budgets and tight schedules, this advantage makes steel truss bridges the most cost-effective choice. Furthermore, steel truss bridges are environmentally friendly and sustainable, aligning with the growing focus on green development in Southeast Asia. Steel is a highly recyclable material—at the end of the bridge’s service life, most steel truss components can be recycled and reused, reducing construction waste and environmental pollution. In addition, the lightweight design of steel truss bridges reduces the amount of materials used and the impact on the surrounding ecological environment, such as minimizing damage to riverbeds and vegetation during construction. EVERCROSS is committed to sustainable development, and our steel truss bridges are designed to be environmentally friendly, helping Southeast Asian countries achieve infrastructure development while protecting the ecological environment. As a trade and manufacturing foreign trade enterprise specializing in steel truss bridges, EVERCROSS BRIDGE TECHNOLOGY (SHANGHAI) CO., LTD. has rich experience in providing customized solutions for Southeast Asian countries. Our Shanghai R&D center focuses on optimizing steel truss bridge designs to adapt to the region’s climate and terrain, while our Zhenjiang manufacturing base ensures high-quality production and timely delivery. We strictly follow international bridge design codes and local standards in Southeast Asia, ensuring that our steel truss bridges meet the highest safety and quality requirements. Whether it is a long-span river-crossing bridge in Vietnam, a coastal connection bridge in Malaysia, or a valley-spanning bridge in Indonesia, EVERCROSS’s steel truss bridges have been widely recognized for their reliability and performance. Frequently Asked Questions (FAQ) Q1: Can steel truss bridges in Southeast Asia resist typhoons and heavy rainfall? A: Yes. Steel truss bridges have excellent wind resistance due to their triangular truss structure, which provides high structural stiffness and stability. EVERCROSS optimizes the design of steel truss bridges for Southeast Asia’s typhoon-prone areas, enhancing their wind load-bearing capacity to resist typhoons of up to level 15. In addition, the strict anti-corrosion treatment (galvanizing + anti-rust painting) ensures that the bridges can withstand heavy rainfall and high humidity without corrosion, maintaining structural integrity for decades. Q2: Are steel truss bridges suitable for long-span river crossings in Southeast Asia with soft soil foundations? A: Absolutely. One of the core advantages of steel truss bridges is their light self-weight relative to their load-bearing capacity, which reduces the pressure on the foundation. For Southeast Asia’s soft soil foundations, this means we can use simpler and more economical foundation designs, avoiding the need for expensive deep foundation construction. EVERCROSS’s R&D team can customize the foundation and truss design according to the specific soil conditions of each project, ensuring the bridge’s stability and safety even on soft soil. Q3: How long does it take to construct a long-span steel truss bridge in Southeast Asia? A: The construction period depends on the span and complexity of the bridge, but generally, steel truss bridges are much faster to build than concrete bridges. For a 200-300 meter long-span steel truss bridge, the prefabrication of components in our Zhenjiang factory takes 2-3 months, and on-site assembly takes 3-6 months, with a total construction period of 5-9 months. This is 30%-50% shorter than the construction period of a concrete bridge of the same span, making it ideal for Southeast Asia’s urgent infrastructure needs. Q4: Does EVERCROSS provide after-sales service for steel truss bridges in Southeast Asia? A: Yes. We provide comprehensive after-sales service for all our projects in Southeast Asia, including on-site installation guidance, maintenance training, and regular inspections. Our professional team can quickly respond to any maintenance needs, ensuring the long-term stable operation of the steel truss bridges. We also provide spare parts supply services to avoid delays caused by component damage, fully guaranteeing the interests of our customers in the region.

In civil engineering and infrastructure development, the demand for pedestrian bridges has surged. These structures not only improve connectivity but also enhance pedestrian safety across various environments, including urban areas, parks, and recreational spaces. A crucial aspect of any project is the cost associated with AASHTO standard prefab pedestrian bridges. Let’s explores the factors that influence these costs, the benefits of selecting prefab solutions, and common applications, offering valuable insights. What is a Prefab Pedestrian Bridge? A prefab (prefabricated) pedestrian bridge is a structure that is designed and manufactured off-site, allowing for efficient assembly at the installation location. These bridges are typically constructed using robust materials such as steel, aluminum, or fiberglass, which provide durability and require minimal maintenance. The prefabrication process involves creating bridge components in a controlled setting, reducing construction delays and ensuring consistent quality. Key Factors Impacting AASHTO Standard Prefab Pedestrian Bridge Cost The cost of an AASHTO standard prefab pedestrian bridge can fluctuate significantly based on several key factors: 1. Material Choice The selection of materials profoundly affects the overall cost. Steel and aluminum are frequently chosen for their strength and durability. However, fluctuations in raw material prices can influence final costs. Additionally, while fiberglass is lightweight and corrosion-resistant, it may present different financial considerations. 2. Dimensions and Design Complexity Custom designs that incorporate unique shapes, added features, or specific aesthetic requirements can increase expenses. The size of the bridge, including its length and width, is also a critical factor. Larger and more intricate structures necessitate more materials and labor, resulting in elevated costs. 3. Site Conditions and Preparation The installation location directly impacts costs due to site preparation needs. Aspects such as terrain, soil stability, and environmental factors may require additional groundwork or supports, increasing overall expenses. Accessibility for construction equipment further influences site preparation costs. 4. Transportation and Assembly Transporting prefabricated components to the site can incur substantial costs, particularly for larger or remote bridges. On-site assembly also demands labor, which should be included in the overall budget. Effective logistics and assembly processes can help reduce these expenditures. 5. Regulatory Compliance and Permitting Adhering to local building codes and securing necessary permits may add to project costs. A thorough understanding of the regulatory landscape is essential for accurate budget planning. Engaging with local authorities early in the process can help streamline compliance and permitting. Benefits of AASHTO Standard Prefab Pedestrian Bridges Choosing an AASHTO standard prefab pedestrian bridge provides numerous advantages that can offset initial costs: 1. Rapid Installation Prefab bridges can be installed swiftly, often shortening overall project timelines. This efficiency can result in labor and site management cost savings, making them an appealing choice for municipalities and developers seeking to accelerate infrastructure projects. 2. Quality Assurance Components produced in a controlled environment typically ensure a higher level of quality assurance. This consistency minimizes the risk of defects and guarantees that the bridge adheres to safety and performance standards, instilling confidence in buyers. 3. Environmental Sustainability Prefab bridges are often designed with sustainability as a priority. The materials used can be recyclable, and the construction process generally generates less waste compared to traditional methods. This commitment to sustainability can enhance a company's reputation and align with environmental goals. Conclusion In summary, understanding the cost of AASHTO standard prefab pedestrian bridges is essential for informed purchasing decisions. By considering factors such as material selection, design complexity, site conditions, transportation, and regulatory compliance, buyers can better evaluate their options. The advantages of prefab solutions, including rapid installation, quality assurance, and sustainability, highlight their value in modern infrastructure development.

In February 2026, Spain was hit by large-scale flood disasters, which caused severe damage to local infrastructure, including some bridge structures. This natural disaster once again highlighted the importance of designing and constructing durable, resilient and standard-compliant permanent bridges for regional infrastructure stability. In the field of civil engineering, constructing permanent bridges plays a vital role in infrastructure advancement. Before delving into the Eurocodes standard applicable to permanent bridges in Spain, it is necessary to clarify the definition, advantages of permanent bridges, as well as the overall framework of European bridge design codes and the specific requirements of Spain’s local bridge design codes—all of which lay the foundation for ensuring bridge safety and adaptability, especially in the context of frequent extreme weather events such as floods. What is a Permanent Bridge and Its Advantages? A permanent bridge refers to a long-term, fixed bridge structure designed and constructed to serve transportation needs (highway, railway, pedestrian, etc.) for an extended service life—usually 50 years or more—with stable performance, strong durability and low long-term maintenance costs. Unlike temporary bridges that are built for short-term use (such as emergency rescue after natural disasters), permanent bridges are designed to withstand long-term environmental erosion, continuous traffic loads and unexpected extreme conditions (including floods, earthquakes, strong winds, etc.), and are core components of a region’s transportation network. The advantages of permanent bridges are particularly prominent, especially in disaster-prone areas like Spain which suffered from large-scale floods in February 2026: First, excellent durability, using high-quality materials and scientific design to resist corrosion, fatigue and environmental damage, ensuring long-term stable operation even after being affected by floods. Second, strong load-bearing capacity, which can stably bear continuous traffic loads (such as heavy trucks, high-speed trains) and sudden additional loads (such as flood impact, debris accumulation during floods). Third, good adaptability, which can be designed according to local geographical environment, climate characteristics and disaster risks (such as flood control standards) to enhance structural resilience. Fourth, economic efficiency in the long run, although the initial construction investment is relatively high, the low maintenance cost and long service life reduce the total life-cycle cost, and avoid frequent reconstruction and maintenance caused by structural damage after disasters. Fifth, stable social value, as a key link in the transportation network, permanent bridges ensure the smooth flow of people and materials, which is crucial for post-disaster rescue, economic recovery and daily social operation—this was fully reflected in the 2026 Spanish flood disaster, where standard-compliant permanent bridges became important channels for rescue materials transportation and personnel transfer. European Bridge Design Codes and Spain’s Local Bridge Design Codes European bridge design codes, commonly known as Eurocodes, are a set of harmonized technical standards developed by the European Committee for Standardization (CEN) to unify the structural design framework across European countries. The core purpose of Eurocodes is to ensure the safety, reliability, durability and interoperability of construction projects (including bridges) within the European market, eliminate technical trade barriers, and promote cross-border cooperation in the construction industry. Eurocodes cover all aspects of bridge design and construction, including load calculation, structural analysis, material specifications, durability requirements, and disaster resistance design (such as seismic, flood and wind resistance), forming a comprehensive and systematic technical guideline system. For Spain, the bridge design standard system is based on Eurocodes, supplemented by local national annexes and special specifications to adapt to the country’s unique geographical, climatic and engineering needs—especially in response to flood risks, which have been further emphasized after the February 2026 flood disaster. Specifically, Spain’s bridge design codes consist of three core parts: First, Eurocodes adopted as national standards. Spain converts Eurocodes into national standards through the Spanish Association for Standardization (UNE), with the prefix “UNE-EN”, making them mandatory for bridge design and construction. The key Eurocodes related to permanent bridges are consistent with the European unified standards, including EN 1990 (Basis of Structural Design), EN 1991 (Actions on Structures), EN 1992 (Design of Concrete Structures), EN 1993 (Design of Steel Structures), and EN 1994 (Design of Composite Steel and Concrete Structures), which form the core technical basis for Spanish bridge design. Second, National Annexes (NA). As a mandatory supplement to Eurocodes, the National Annexes adjust and specify key parameters in Eurocodes according to Spain’s actual conditions, such as load partial factors, flood control load standards, seismic zoning parameters, and material performance requirements. For example, AN/UNE-EN 1993-2 (National Annex for Steel Bridges) and AN/UNE-EN 1998-2 (National Annex for Seismic Design of Bridges) further refine the technical requirements combined with Spain’s engineering practice, especially increasing the relevant provisions for flood impact resistance after the 2026 flood disaster. Third, Spanish local special specifications. Issued by Spain’s Ministry of Transport and Sustainable Mobility (MITMA) and the Railway Infrastructure Administration (ADIF), these specifications focus on the special needs of Spain’s highway and railway bridges. Key specifications include NCSP-07 (Real Decreto 637/2007, Bridge Seismic Design Code), which supplements EN 1998-2 to enhance the seismic and flood resilience of bridges; RPX-95 (Recommended Code for the Design of Highway Steel-Concrete Composite Bridges); IAP-98 (General Design Code for Highway Bridges), which specifies geometric parameters, load standards and structural details; and ADIF’s special specifications for railway bridges, which match Eurocode 1991-2 and Eurocode 1993-2 to meet the design requirements of high-speed and ordinary railways. In Spain, compliance with the above Eurocodes standard and local specifications is crucial to guarantee safety, reliability, and performance in bridge design and construction—this is even more important after the February 2026 flood disaster, as the standards put forward higher requirements for the flood resistance, durability and structural resilience of permanent bridges. This article further explores the technical specifications, applications, and advantages of the Eurocodes standard concerning permanent bridges in Spain, and introduces how EVERCROSS BRIDGE TECHNOLOGY (SHANGHAI) CO., LTD., as an integrated industry and trade enterprise, produces steel structure bridges that meet local standards, offering valuable insights for B2B buyers and industry professionals. What are Eurocodes? Eurocodes represent a collection of harmonized technical standards developed by the European Committee for Standardization (CEN) to establish a cohesive framework for structural design across Europe. These guidelines cover various construction components, such as load calculations, structural analysis, and material specifications. For Spain, Eurocodes are essential not only for meeting national regulations but also for promoting international collaboration and trade in construction methodologies. Especially after the 2026 Spanish flood disaster, Eurocodes’ provisions on extreme load resistance (including flood impact) have become a key basis for optimizing bridge design and ensuring structural safety. Eurocodes adopt a limit state design method, focusing on two core limit states: Ultimate Limit State (ULS) and Serviceability Limit State (SLS). The Ultimate Limit State ensures that the bridge structure does not suffer collapse, damage or loss of stability under extreme loads (such as flood impact, heavy traffic, earthquakes); the Serviceability Limit State ensures that the bridge’s deflection, crack width and vibration meet the requirements during normal use, avoiding affecting traffic safety and user comfort. This design concept is fully integrated into the entire process of permanent bridge design in Spain, providing a solid technical guarantee for the long-term stable operation of bridges. Key Eurocodes Relevant to Permanent Bridges When designing permanent bridges in Spain, several Eurocodes are particularly significant, and their roles have been further highlighted in the context of post-2026 flood disaster infrastructure reconstruction: EN 1990: Basis of Structural Design - This standard lays out the principles and requirements for structural design, including load combination rules, safety factors and design criteria, ensuring bridges can endure various loads and environmental factors (such as flood impact, temperature changes, and corrosion). It is the core guiding standard for all permanent bridge design in Spain, providing a unified design framework. EN 1991: Actions on Structures - This code outlines the various loads that bridges may face, such as dead loads (bridge dead load, pavement, auxiliary facilities), live loads (highway vehicles, railway trains, pedestrians), wind forces, seismic actions, and special loads (flood impact force, debris impact force during floods). For Spain, which suffered from large-scale floods in 2026, the provisions on flood-related loads in this code have become a key reference for optimizing bridge design and improving flood resistance. EN 1992: Design of Concrete Structures - This standard delivers guidelines for designing and detailing concrete components utilized in bridge construction, concentrating on durability, serviceability, and ultimate limit states. It specifies the performance requirements of concrete materials, the design method of reinforced concrete and prestressed concrete structures, and the anti-crack and anti-corrosion measures—important for improving the durability of concrete bridges in flood-prone areas. EN 1993: Design of Steel Structures - For steel bridges, this code provides specifications on material properties, structural behavior, and fatigue evaluation. It clarifies the selection criteria of steel materials, the design method of steel components and connections, and the fatigue check requirements under long-term dynamic loads, which is the core standard for the design of steel structure permanent bridges in Spain. EN 1994: Design of Composite Steel and Concrete Structures - This standard is essential for bridges that incorporate both steel and concrete, offering guidelines for their integration and performance. Composite steel-concrete bridges combine the advantages of high strength of steel and good durability of concrete, and are widely used in highway and railway bridge projects in Spain, especially in post-2026 flood disaster reconstruction projects due to their strong adaptability and short construction period. Technical Features of Eurocodes for Bridge Construction The Eurocodes furnish comprehensive technical features that bolster the safety and reliability of permanent bridges, and these features are closely combined with Spain’s local needs and disaster prevention requirements, especially in response to flood risks: Load Combinations: Eurocodes specify particular load combinations to be considered during the design phase, including the combination of permanent loads, variable loads and special loads (such as flood impact loads), ensuring bridges can endure extreme circumstances, such as heavy traffic, adverse weather conditions and natural disasters like floods. After the 2026 Spanish flood disaster, the rationality of load combinations has become a key focus of bridge design review, ensuring that bridges can resist the impact of extreme floods. Material Performance: The standards stipulate performance criteria for various materials, ensuring that the steel and concrete used in bridge construction comply with stringent quality standards for strength and durability. For example, steel materials need to meet the requirements of tensile strength, yield strength and impact toughness, and have good corrosion resistance (to adapt to the humid environment after floods); concrete materials need to have appropriate strength grade, impermeability and frost resistance, avoiding damage caused by flood immersion and erosion. Structural Analysis: The Eurocodes promote advanced analytical techniques, including finite element modeling, which allows for more precise predictions of structural behavior under different load scenarios (such as flood impact, uneven settlement, and temperature stress). In Spain’s permanent bridge design, finite element analysis is widely used to simulate the stress and deformation of bridge structures under flood conditions, optimizing the structural design and improving flood resistance. Durability and Maintenance: Eurocodes address the long-term performance of materials and structures, underscoring the importance of maintenance strategies to prolong the lifespan of bridges. Combined with the experience of the 2026 flood disaster, Spanish bridge design further strengthens the durability design, such as adopting anti-corrosion coatings for steel structures, setting drainage systems to avoid long-term water accumulation, and formulating regular inspection and maintenance plans to timely repair structural damage caused by floods and other disasters. Applications of Eurocodes in Permanent Bridge Projects Permanent bridges in Spain are essential connectors for transportation networks, and implementing Eurocodes ensures they adhere to both national and international standards. Especially after the February 2026 flood disaster, the application of Eurocodes in bridge reconstruction and new construction projects has become more extensive, covering various types of permanent bridges: Highway and Rail Bridges: Eurocodes facilitate the design of sturdy highway and rail bridges capable of supporting heavy traffic loads and dynamic forces from trains. In post-flood reconstruction, these bridges are designed according to Eurocodes’ load combination requirements, increasing the flood impact resistance and ensuring the smooth flow of key transportation lines—an important guarantee for regional economic recovery. Pedestrian and Cycle Bridges: The standards offer guidelines for designing lighter, aesthetically pleasing pedestrian and cycle bridges, ensuring safety and comfort for users. Even for such light-duty bridges, Eurocodes’ requirements for structural stability and durability are strictly followed, especially in flood-prone areas, to avoid structural damage caused by floods and ensure the safety of pedestrians and cyclists. Bridges in Seismic Zones and Flood-Prone Areas: Given Spain’s varied geography, which includes both seismic-prone areas and flood-prone regions (as reflected in the 2026 flood disaster), Eurocodes provide critical criteria for designing bridges in these areas, enhancing their resilience and safety. For flood-prone areas, Eurocodes’ provisions on flood load calculation, structural waterproofing and corrosion resistance are fully applied, and combined with Spain’s local NCSP-07 specification, the bridge’s flood resistance level is further improved. EVERCROSS BRIDGE TECHNOLOGY (SHANGHAI) CO., LTD.: Producing Steel Structure Bridges Compliant with Spanish Standards Against the backdrop of Spain’s emphasis on bridge safety and standard compliance, especially after the 2026 flood disaster which increased the demand for high-quality, disaster-resistant permanent bridges, EVERCROSS BRIDGE TECHNOLOGY (SHANGHAI) CO., LTD. (hereinafter referred to as “EVERCROSS”) stands out as an integrated industry and trade enterprise specializing in the R&D, design, production, and export of steel structure bridges. With rich experience in international bridge projects and a strict quality control system, EVERCROSS has the capability to produce steel structure bridges that fully comply with Eurocodes and Spain’s local bridge design standards, providing reliable infrastructure solutions for the Spanish market, especially for post-flood reconstruction projects. As an integrated industry and trade enterprise, EVERCROSS achieves compliance with Spanish standards through a full-process quality control system, covering design, material selection, production, testing and after-sales service: First, Professional Design Team with Rich Experience in Eurocodes. EVERCROSS has a team of senior structural designers who are proficient in Eurocodes (especially EN 1993 for steel structures) and Spain’s local specifications (including UNE-EN series standards, NCSP-07, RPX-95, etc.). Combining the geographical environment, climate characteristics and flood risk of the project location in Spain, the team carries out personalized design—for example, optimizing the bridge structure to enhance flood impact resistance, adopting reasonable load combinations according to the 2026 flood disaster experience, and ensuring that the design scheme fully meets the requirements of Spanish national standards and local specifications. At the same time, the design team uses advanced finite element analysis software to simulate the structural behavior under flood, seismic and other extreme conditions, ensuring the safety and reliability of the design. Second, Strict Material Selection Meeting European Standards. The quality of steel materials is the foundation of steel structure bridge safety and durability. EVERCROSS selects high-quality steel materials that comply with Eurocodes and Spanish standards, such as S355JR, S355J2 and S460 steel, which have excellent strength, toughness and corrosion resistance—suitable for Spain’s flood-prone environment. All steel materials are accompanied by authoritative inspection reports, and strict incoming inspection is carried out to ensure that the material performance meets the design requirements. In addition, according to the corrosion environment (such as humid environment after floods), EVERCROSS adopts advanced anti-corrosion treatments, such as hot-dip galvanizing and anti-corrosion coating, to prolong the service life of steel structure bridges. Third, Standardized Production Process and Strict Quality Control. EVERCROSS has a modern production base equipped with advanced steel structure processing equipment and a complete quality control system. The production process strictly follows Eurocodes and Spanish specifications, including cutting, welding, assembling, surface treatment and other links. The company’s welders have professional qualifications recognized by the European Union, and the welding quality is inspected by non-destructive testing (NDT) methods (such as ultrasonic testing, radiographic testing) to ensure that the welding performance meets the standard requirements. For key components related to flood resistance and structural stability, special quality inspections are carried out to avoid any quality hidden dangers. In addition, the company implements full-process production monitoring, and establishes detailed production records to ensure traceability of product quality. Fourth, Comprehensive Testing and Certification Compliance. Before the steel structure bridges leave the factory, EVERCROSS carries out comprehensive performance testing, including load testing, structural deformation testing, anti-corrosion performance testing, etc., to ensure that the product performance meets the design requirements and Spanish standards. At the same time, the company cooperates with authoritative third-party testing institutions recognized by the European Union to issue compliance testing reports and certifications, ensuring that the products can smoothly pass the customs inspection and on-site acceptance in Spain. For post-2026 flood disaster reconstruction projects, EVERCROSS also carries out special flood resistance testing according to the requirements of Spanish local specifications, ensuring that the bridges can resist extreme flood impacts. Fifth, Perfect After-Sales Service and Technical Support. EVERCROSS provides full-process after-sales service for Spanish customers, including on-site installation guidance, commissioning, regular inspection and maintenance guidance. After the bridges are put into use, the company tracks the operation status of the bridges in real time, and provides technical support for dealing with structural problems caused by floods or other disasters. Combining the experience of the 2026 Spanish flood disaster, EVERCROSS also provides customized maintenance plans for customers, helping to prolong the service life of steel structure bridges and ensure long-term stable operation. With its integrated industry and trade model, professional technical strength and strict quality control system, EVERCROSS has become a reliable partner for steel structure bridge projects in Spain, providing high-quality, standard-compliant and disaster-resistant permanent steel structure bridges for the Spanish market, and making positive contributions to the reconstruction and development of Spain’s infrastructure after the 2026 flood disaster. Conclusion In summary, the Eurocodes standard, combined with Spain’s local national annexes and special specifications, constitutes the complete design and construction standard system for permanent bridges in Spain. This system not only ensures the safety, reliability and durability of permanent bridges but also provides a solid technical guarantee for improving the disaster resistance (especially flood resistance) of bridges—this is particularly important after the February 2026 flood disaster, which has put forward higher requirements for Spain’s infrastructure construction. A permanent bridge, as a core component of the transportation network, with its excellent durability, strong load-bearing capacity and good adaptability, plays an irreplaceable role in regional economic development and post-disaster recovery. For B2B buyers and industry professionals in the Spanish bridge construction industry, understanding the Eurocodes standard and Spain’s local bridge design codes is the premise of carrying out project cooperation and ensuring project quality. As an integrated industry and trade enterprise specializing in steel structure bridges, EVERCROSS BRIDGE TECHNOLOGY (SHANGHAI) CO.,LTD. relies on its professional design team, strict material selection, standardized production process and perfect after-sales service to continuously provide steel structure bridges that fully comply with Spanish standards, helping to promote the upgrading and development of Spain’s permanent bridge infrastructure, and contributing to building a more resilient and reliable transportation network in Spain.

Introduction: Military Bridges and EVERCROSS’s Professional Support Military bridges are critical tactical assets, engineered to overcome obstacles and ensure unimpeded mobility for troops, vehicles, and supplies during operations, disaster relief, and emergency response. Their reliability, rapid deployability, and adaptability directly impact mission success. Backed by professional R&D capabilities and mature manufacturing strength, EVERCROSS BRIDGE TECHNOLOGY (SHANGHAI) CO., LTD. is a trade and manufacturing foreign trade enterprise specializing in prefabricated highway steel bridges. With a professional bridge R&D center in Shanghai and a manufacturing base in Zhenjiang, the company is committed to providing high-quality, compliant bridge solutions—including products applicable to military and quasi-military scenarios. All bridge designs of EVERCROSS fully meet various international bridge design codes, ensuring superior performance, safety, and adaptability in even the harshest environments. FAQs About Military Bridges 1. What is a Military Bridge and Its Primary Purpose? A military bridge is a specialized structure designed to facilitate quick and efficient crossings over obstacles like rivers, ravines, or damaged infrastructure during military operations. Its main objective is to ensure the swift movement of troops, vehicles, and equipment, allowing military operations to proceed without delays caused by natural or man-made barriers. These bridges are engineered for resilience and rapid deployment, often featuring modular designs for easy assembly and disassembly—core characteristics that align with the prefabricated steel bridge expertise of EVERCROSS. In conflict situations or during disaster response, military bridges are essential for maintaining supply lines and enhancing maneuverability, making them invaluable assets in any military operation. Leveraging its R&D advantages in Shanghai and precision manufacturing in Zhenjiang, EVERCROSS’s prefabricated steel bridge technologies can be tailored to meet the rigorous demands of military bridge applications. 2. What Types of Military Bridges Are Commonly Used? Various types of military bridges are employed, each catering to distinct operational requirements. Among the most prominent are: Pontoon bridges: Float on water and can be assembled swiftly, ideal for crossing rivers and waterways in emergency scenarios. Bailey bridges: Known for their strength and adaptability, suitable for both vehicular and pedestrian traffic—one of the core prefabricated steel bridge types that EVERCROSS specializes in, leveraging its modular design and high-strength steel manufacturing capabilities. Mobile bridges: Can be deployed rapidly across different terrains, designed for quick maneuvering and assembly. Additionally, certain military units may utilize specialized bridges designed to support heavy loads or to operate effectively in specific environmental conditions. As a professional prefabricated highway steel bridge supplier, EVERCROSS’s products, backed by its Shanghai R&D center, can be customized to match these specialized military requirements. Familiarity with the different types of military bridges is crucial for selecting the appropriate one for a given mission, ensuring military forces can operate effectively across diverse landscapes. 3. How Quickly Can a Military Bridge Be Deployed in the Field? The time required to deploy a military bridge varies depending on the bridge type and the operational context. For example, pontoon bridges can often be erected within a few hours, while more intricate systems like Bailey bridges typically take longer, generally from several hours to a full day. Factors that influence deployment speed include the availability of personnel trained in bridge assembly, environmental conditions, and the equipment at hand. Notably, the modular and standardized design of EVERCROSS’s prefabricated steel bridges—manufactured in its Zhenjiang factory—greatly enhances deployment efficiency, as components are prefabricated, interchangeable, and require no on-site secondary processing. Military units are trained to set up these bridges promptly to minimize operational downtime, which is critical for maintaining momentum and effectiveness in the field. 4. What Factors Should Be Considered When Selecting a Military Bridge? When choosing a military bridge, several crucial factors must be taken into account to ensure optimal performance, all of which are addressed in EVERCROSS’s bridge design and manufacturing process: Weight capacity: It’s essential to understand the types of vehicles and equipment that will traverse the bridge—EVERCROSS’s high-strength steel components and precision engineering ensure excellent load-bearing performance. Terrain and environmental conditions: Such as the width and depth of rivers, which significantly influence the choice of bridge type—EVERCROSS’s R&D team in Shanghai specializes in designing bridges adaptable to diverse and harsh environments. Ease of assembly and disassembly: Critical for military efficiency, aligning with EVERCROSS’s modular prefabricated design philosophy. Logistical aspects: Including the transportability and storage of the bridge components—EVERCROSS optimizes component design for convenient transportation and storage, reducing logistical burdens. Moreover, all of EVERCROSS’s bridge designs comply with various international bridge design codes, ensuring that the selected bridge meets global safety and performance standards for military applications. 5. Are Military Bridges Suitable for Civilian Use After Deployment? Indeed, many military bridges can be repurposed for civilian applications following their initial deployment. Their robust design and engineering make them ideal for a variety of uses, such as temporary roadways during disaster relief efforts or for infrastructure repairs. In some instances, military bridges may be utilized in civil engineering projects where rapid deployment and substantial load capacity are necessary. However, transitioning from military to civilian use might require modifications to comply with local regulations and safety standards—an area where EVERCROSS excels, leveraging its R&D capabilities to adjust bridge designs while maintaining their core strength and reliability. As a trade and manufacturing enterprise, EVERCROSS also provides comprehensive support for the repurposing of prefabricated steel bridges, bridging the gap between military and civilian applications. Overall, military bridges provide versatility that can enhance civilian infrastructure, particularly in emergency situations, and EVERCROSS’s expertise ensures seamless adaptation and compliance. EVERCROSS: Your Trusted Partner for Military-Grade Prefabricated Bridges As a trade and manufacturing foreign trade enterprise, EVERCROSS BRIDGE TECHNOLOGY (SHANGHAI) CO., LTD. integrates R&D, production, and sales, with its professional R&D bridge research center in Shanghai driving technological innovation and its manufacturing base in Zhenjiang ensuring consistent product quality. Specializing in prefabricated highway steel bridges, the company’s products are engineered to meet the rigorous demands of military and civilian scenarios alike, with full compliance to international bridge design codes. Whether for military deployment, emergency rescue, or civilian infrastructure projects, EVERCROSS delivers reliable, efficient, and adaptable bridge solutions, leveraging its expertise to support global customers in overcoming crossing challenges.

Shanghai, China – July 31, 2025 – A vital new transportation link has been successfully commissioned in Ethiopia with the completion of a 40-meter Bailey bridge. Constructed by EVERCROSS BRIDGE TECHNOLOGY (SHANGHAI) CO., LTD., this critical infrastructure project directly addresses longstanding mobility challenges for local communities, significantly reducing travel times and enhancing safety. What is a Bailey Bridge?The Bailey bridge is a renowned, highly versatile type of portable, prefabricated truss bridge. Its genius lies in its design: Modularity: It's constructed from standardized, interchangeable steel panels, pins, and transoms (cross-beams). These components are relatively lightweight and easy to transport. Rapid Assembly: Sections can be easily lifted into place manually or with light machinery, allowing for incredibly fast construction compared to traditional bridges, often in days or weeks. Strength & Adaptability: Despite its prefabricated nature, the Bailey bridge is remarkably strong and can be configured into various lengths and load capacities by adding more panels and supports. It can also be strengthened ("double-story" or "triple-story") for heavier loads. Proven History: Originally designed by Sir Donald Bailey for military use during World War II, its robustness, simplicity, and speed of deployment made it invaluable. This legacy continues in civilian applications worldwide, particularly in disaster relief and rural infrastructure development where speed and cost-effectiveness are paramount.

We are thrilled to announce a significant milestone in our international expansion! EVERCROSS BRIDGE TECHNOLOGY (SHANGHAI) CO., LTD. has been officially awarded the contract for the Telefomin 16km Ring Road Project in the West Sepik Province of Papua New Guinea. This prestigious project involves the design, supply, and installation of five (5) modern, two-lane Bailey Bridges, marking a major achievement as we solidify our presence in the demanding Oceania market, specifically targeting projects compliant with the rigorous AS/NZS (Australian/New Zealand Standards) series. This victory underscores our expertise in delivering critical infrastructure solutions that meet the highest international benchmarks. The Telefomin Road project is vital for connecting communities and fostering development in a remote region of PNG. The Bailey Bridge Advantage: The Bailey Bridge system is a cornerstone of robust, rapidly deployable infrastructure. These are prefabricated, modular steel truss bridges, renowned for their: Strength & Durability: Engineered to handle substantial loads, including heavy vehicles and challenging environmental conditions common in PNG. Rapid Construction: Their modular design allows for swift assembly using relatively simple equipment and local labor, minimizing disruption and accelerating project timelines significantly compared to traditional bridge building. Versatility & Adaptability: Easily configured to span various distances and fit diverse terrains – ideal for the demanding landscapes of West Sepik Province. Cost-Effectiveness: Offering a reliable and efficient solution, maximizing value for critical infrastructure investment. Proven Compliance: Our bridges will be meticulously designed and constructed to fully comply with AS/NZS 5100.6 (Bridge Design - Steel and Composite Construction) and other relevant AS/NZS standards, ensuring long-term safety, performance, and regulatory acceptance. Transforming Lives in West Sepik: The construction of these five new two-lane Bailey Bridges along the Telefomin Road is far more than just an infrastructure project; it's a catalyst for profound positive change for the local communities: Unlocking Vital Access: Replacing unreliable or non-existent river crossings, these bridges will provide year-round, all-weather access between Telefomin and surrounding villages. This eliminates dangerous river fording, especially critical during the rainy season. Enhancing Safety: Safe, reliable bridges drastically reduce the risks associated with crossing flooded rivers or using unstable makeshift crossings, protecting lives. Boosting Economic Opportunity: Reliable transport links enable farmers to get goods to markets efficiently, allow businesses to receive supplies, attract investment, and create local jobs. Economic activity will flourish. Improving Healthcare Access: Consistent access means residents can reliably reach clinics and hospitals for essential medical care, vaccinations, and emergencies, significantly improving health outcomes. Empowering Education: Children will no longer miss school due to impassable rivers. Teachers and supplies can reach remote schools consistently, enhancing educational opportunities. Strengthening Community Ties: Easier travel fosters stronger social connections between villages and families, promoting cultural exchange and community resilience. A Testament to Expertise and Commitment: Winning this competitive tender against AS/NZS standards highlights EVERCROSS BRIDGE TECHNOLOGY (SHANGHAI) CO., LTD. 's technical prowess, commitment to quality, and deep understanding of the infrastructure needs within the Oceania region. We are proud to contribute our world-class Bailey Bridge solutions to such a transformative project. We extend our sincere gratitude to the authorities in Papua New Guinea for their trust and look forward to a highly successful partnership in delivering this vital infrastructure. This project exemplifies our dedication to "Building Connections, Empowering Communities" worldwide. Here's to building a brighter, more connected future for the people of Telefomin and West Sepik Province! For more information on our international projects and Bailey Bridge solutions, please visit our website or contact our international division. EVERCROSS BRIDGE TECHNOLOGY (SHANGHAI) CO., LTD. - Building Global Infrastructure Excellence

In the realm of civil infrastructure, ensuring the safety, durability, and serviceability of bridges is paramount. For highway bridges across the United States, the definitive guide governing their design and construction is the AASHTO LRFD Bridge Design Specifications. Developed and maintained by the American Association of State Highway and Transportation Officials (AASHTO), this comprehensive document represents the culmination of decades of research, testing, and practical engineering experience, establishing itself as the national standard for highway bridge design. What Are the AASHTO LRFD Bridge Design Specifications? Fundamentally, the AASHTO LRFD Specifications are a codified set of rules, procedures, and methodologies used by structural engineers to design new highway bridges and evaluate existing ones. The acronym "LRFD" stands for Load and Resistance Factor Design, which signifies a fundamental shift from older design philosophies like Allowable Stress Design (ASD) or Load Factor Design (LFD). LRFD is a probability-based approach. It explicitly acknowledges the inherent uncertainties in both the loads a bridge must carry throughout its lifetime (traffic, wind, earthquakes, temperature changes, etc.) and the resistance (strength) of the materials (concrete, steel, soil, etc.) used to build it. Instead of applying a single, global safety factor to reduce material strength (as in ASD), LRFD employs distinct Load Factors (γ) and Resistance Factors (φ). Load Factors (γ): These are multipliers (greater than 1.0) applied to the various types of loads a bridge might experience. They account for the possibility that actual loads could be higher than predicted nominal values, that multiple severe loads might occur simultaneously, and the potential consequences of failure. More variable and less predictable loads, or those with higher consequences of underestimation, receive higher load factors. Resistance Factors (φ): These are multipliers (less than or equal to 1.0) applied to the nominal strength of a structural component (e.g., a beam, a column, a pile). They account for uncertainties in material properties, workmanship, dimensions, and the accuracy of the predictive equations used to calculate strength. Factors are calibrated based on reliability theory and historical performance data for different materials and failure modes. The core design requirement in LRFD is expressed as: Factored Resistance ≥ Factored Load Effects. In essence, the strength of the bridge component, reduced by its resistance factor, must be greater than or equal to the combined effect of all applied loads, each amplified by its respective load factor. This approach allows for a more rational and consistent level of safety across different bridge types, materials, and load combinations compared to older methods. Primary Domain of Application: Highway Bridges The AASHTO LRFD Specifications are specifically tailored for the design, evaluation, and rehabilitation of highway bridges. This encompasses a vast array of structures carrying vehicular traffic over obstacles like rivers, roads, railways, or valleys. Key applications include: New Bridge Design: This is the primary application. The specifications provide the framework for designing all structural elements of a highway bridge, including: Superstructure: Decks, girders (steel, concrete, prestressed concrete, composite), trusses, bearings, expansion joints. Substructure: Piers, abutments, columns, pier caps, wing walls. Foundations: Spread footings, driven piles (steel, concrete, timber), drilled shafts, retaining walls integral to the bridge. Appurtenances: Railings, barriers, drainage systems (as they relate to structural loads). Bridge Evaluation and Rating: Engineers use the LRFD principles and load factors to assess the load-carrying capacity (rating) of existing bridges, determining if they can safely carry current legal loads or require posting, repair, or replacement. Bridge Rehabilitation and Strengthening: When modifying or upgrading existing bridges, the specifications guide engineers in designing interventions that bring the structure into compliance with current standards. Seismic Design: While sometimes detailed in companion guides (like the AASHTO Guide Specifications for LRFD Seismic Bridge Design), the core LRFD specifications integrate seismic loads and provide fundamental requirements for designing bridges to resist earthquake forces, particularly in designated seismic zones. Design for Other Loads: The specifications comprehensively address numerous other load types and effects critical to bridge performance, including wind loads, vehicular collision forces (on piers or rails), water and ice loads, temperature effects, creep, shrinkage, and settlement. The specifications are intended for public highway bridges on roads classified as "Highway Functional Classifications" Arterial, Collector, and Local. While they form the basis, specialized structures like movable bridges or bridges carrying exceptionally heavy loads might require additional or modified criteria. Distinguishing Characteristics of the AASHTO LRFD Specifications Several key characteristics define the AASHTO LRFD Specifications and contribute to their status as the modern standard: Reliability-Based Calibration: This is the cornerstone. The load and resistance factors are not arbitrary; they are statistically calibrated using probability theory and extensive databases of material tests, load measurements, and structural performance. This aims to achieve a consistent, quantifiable target level of safety (reliability index, β) across different components and limit states. A higher reliability index is targeted for failure modes with more severe consequences. Explicit Treatment of Multiple Limit States: Design isn't just about preventing collapse. LRFD requires checking several distinct Limit States, each representing a condition where the bridge ceases to perform its intended function: Strength Limit States: Prevent catastrophic failure (e.g., yielding, buckling, crushing, fracture). This is the primary state using the core φR ≥ γQ equation. Service Limit States: Ensure functionality and comfort under regular service loads (e.g., excessive deflection causing pavement damage, cracking in concrete impairing durability or appearance, vibration causing user discomfort). Extreme Event Limit States: Ensure survival and limited serviceability during rare, intense events like major earthquakes, significant vessel collisions, or design-level floods. Lower reliability indices are often accepted here due to the event's rarity. Fatigue and Fracture Limit State: Prevent failure due to repeated stress cycles over the bridge's lifespan, crucial for steel components. Integrated Load Combinations: The specifications provide explicit combinations of loads (e.g., dead load + live load + wind load; dead load + live load + earthquake load) with specific load factors for each combination. This recognizes that different loads acting together have different probabilities of occurrence and potential interactions. The most critical combination dictates the design. Material-Specific Provisions: While the core LRFD philosophy is universal, the specifications contain detailed chapters dedicated to the design of structures using specific materials (e.g., Concrete Structures, Steel Structures, Aluminum Structures, Wood Structures). These chapters provide material-specific equations, resistance factors, and detailing rules. Focus on System Behavior: While components are designed individually, the specifications increasingly emphasize understanding and accounting for system behavior, load paths, and redundancy. A redundant structure, where failure of one component doesn't lead to immediate collapse, is inherently safer. Evolution and Refinement: The LRFD specifications are not static. AASHTO updates them regularly (typically every 4-6 years) through a rigorous consensus process involving state DOTs, industry experts, researchers, and the FHWA. This incorporates the latest research findings (e.g., improved understanding of concrete behavior, refined seismic design approaches, new materials like HPS steel or UHPC), addresses lessons learned from bridge performance (including failures), and responds to evolving needs like accommodating heavier trucks or improving resilience to extreme events. Comprehensiveness: The document covers an immense scope, from fundamental design philosophy and load definitions to intricate details of component design, foundation analysis, seismic provisions, geometric requirements, and construction considerations. It strives to be a self-contained manual for highway bridge design. National Standardization: By providing a unified, scientifically grounded approach, the AASHTO LRFD Specifications ensure a consistent level of safety, performance, and design practice for highway bridges across all 50 states. This facilitates interstate commerce and simplifies the design review process.   The AASHTO LRFD Bridge Design Specifications represent the state-of-the-art in highway bridge engineering practice in the United States. Moving decisively beyond older deterministic methods, its core LRFD philosophy embraces probability and reliability theory to achieve a more rational, consistent, and quantifiable level of safety. Its comprehensive scope, covering everything from fundamental principles to intricate material-specific design rules for all major bridge components under a wide array of loads and limit states, makes it the indispensable reference for designing new highway bridges, evaluating existing ones, and planning rehabilitations. The specifications' defining characteristics – reliability-based calibration, explicit limit state checks, integrated load combinations, and a commitment to continuous evolution through research and practical experience – ensure that it remains a robust, living document, safeguarding the integrity and longevity of the nation's critical highway bridge infrastructure for decades to come. For any structural engineer engaged in U.S. highway bridge work, mastery of the AASHTO LRFD Specifications is not just beneficial; it is fundamental.

[Shanghai, China] – [July,7th,2025] – EVERCROSS BRIDGE TECHNOLOGY (SHANGHAI) CO., LTD. is proud to announce a significant milestone in its global expansion strategy with the successful award of the ANE Steel Bridge Project contract in Mozambique. This prestigious project signifies a major entry and commitment to the growing infrastructure market in Africa. The project involves the design, supply, and construction of 45 steel bridge structures with spans ranging from 30 to 60 meters each, culminating in a total combined bridge length of 1,950 meters. These bridges will play a crucial role in enhancing regional connectivity and transportation infrastructure within Mozambique. A key differentiator and testament to EVERCROSS BRIDGE TECHNOLOGY (SHANGHAI) CO., LTD.'s engineering excellence and commitment to international standards is that the bridge designs will fully comply with the rigorous AASHTO LRFD (Load and Resistance Factor Design) Bridge Design Specifications. This American Association of State Highway and Transportation Officials standard is recognized globally as a leading benchmark for modern, safe, and efficient bridge design, ensuring the structures meet the highest levels of safety, durability, and performance for Mozambique's needs.  

EVERCROSS Bridge Technology (Shanghai) Co., Ltd.  June 5, 2025 Recently, the  Bailey Bridge of the water supply pipeline project of Construction of Pipeline for Sigatoka Water Coverage Extension Projects of Fiji undertaken by our company (EVERCROSS Bridge Technology (Shanghai) Co., Ltd.) has successfully passed the final acceptance and has been well received by the construction unit and users. The project is 24 meters long and is designed and processed in accordance with AS/NZS standards. It is specially used for arranging pipelines and uses special pipe clamps. This marks another important milestone for our company in the Fiji market and has achieved decisive success, which has written a strong and colorful stroke for deepening regional cooperation in the South Pacific and enhancing the company's international brand influence.