Large Bailey Bridges

Modern Prefabricated Easy Build Modular Truss Steel Bailey Bridge for Construction

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  • CB200

  • ZHONGHAI

  • ZHQL-CB200

Portable Steel Bridges: Versatile Lifelines for Urgent and Remote Needs

Portable steel bridges merge the strength of steel with the convenience of mobility, creating flexible infrastructure solutions that excel in scenarios where speed, adaptability, and durability are critical. Unlike permanent steel bridges, these structures are designed for easy transportation, rapid assembly, and disassembly—making them indispensable in emergency response, military operations, and remote area development worldwide.

At their core, portable steel bridges rely on modular, prefabricated components. Steel’s high strength-to-weight ratio is key here: it allows the bridges to be lightweight enough for transport (via trucks, helicopters, or boats) while still supporting heavy loads, from passenger vehicles to construction equipment. Most designs use interlocking steel truss panels, beams, and decking that can be connected with simple tools—no specialized engineering teams are required. For example, a small crew can often assemble a 30-meter portable steel bridge in a single day, a feat impossible with traditional permanent bridges.

The versatility of portable steel bridges shines in diverse use cases. In disaster relief, they quickly replace bridges destroyed by floods, earthquakes, or storms, restoring access for aid delivery and stranded communities. During military missions, they enable troops to cross rivers, valleys, or damaged roads swiftly, maintaining tactical mobility. In remote regions—such as rural areas in developing countries or isolated construction sites—they serve as temporary or semi-permanent crossings, connecting villages to markets or supporting infrastructure projects like mining or pipeline construction.

Modern portable steel bridges also prioritize durability and adaptability. Many feature anti-corrosion steel coatings to withstand harsh weather, from humid jungles to icy tundras. Some designs can be adjusted to different spans (from 10 meters to over 100 meters) or reconfigured for pedestrian-only use, adding to their flexibility. Unlike temporary wooden bridges, which degrade quickly, portable steel bridges can be reused across multiple projects, reducing waste and long-term costs.

In a world where unexpected challenges and remote infrastructure needs persist, portable steel bridges stand as practical, reliable solutions. They prove that strength and mobility can coexist, turning logistical hurdles into manageable tasks and ensuring connectivity when it matters most.

Basic Info.

Model NO.
CB321
Certification
GB, ASTM
Life
Semi-Permanent Bridge
Across Way
Diffuse Water Bridge
Lane Position
Half Through Bridge
Usage
Over Water Bridge, Tractor Bridge, Pontoon, Footbridge, Public Iron Dual Purpose Bridge, Highway Bridge
Scale
Middle Bridge
Stress Characteristics
Beam Bridge
Material
Steel Bridge
Product Capability60000 Pieces Per Year
60000 Pieces Per Year
Standard
ASTM,GB,BS,BV
Qualification
ISO or Similar
Grade
Q355b
Transport Package
Naked
Specification
45m
Trademark
Zhonghai
Origin
China
HS Code
730810000
Production Capacity
50000 Pieces/Year

Product Description

long truss bridge/square truss bridge
CB321(100) Truss Press Limited Table
No. Lnternal Force Structure Form
Not Reinforced Model Reinforced Model
SS DS TS DDR SSR DSR TSR DDR
321(100) Standard Truss Moment(kN.m) 788.2 1576.4 2246.4 3265.4 1687.5 3375 4809.4 6750
321(100) Standard Truss Shear (kN) 245.2 490.5 698.9 490.5 245.2 490.5 698.9 490.5
321 (100) Table of geometric characteristics of truss bridge(Half bridge)
Type No. Geometric Characteristics Structure Form
Not Reinforced Model Reinforced Model
SS DS TS DDR SSR DSR TSR DDR
321(100) Section properties(cm3) 3578.5 7157.1 10735.6 14817.9 7699.1 15398.3 23097.4 30641.7
321(100) Moment of inertia(cm4) 250497.2 500994.4 751491.6 2148588.8 577434.4 1154868.8 1732303.2 4596255.2


Project cases
Durable Long Truss Bridge for Heavy Load Applications


Company  instruction
Durable Long Truss Bridge for Heavy Load Applications
Jiangsu Zhonghai Bridge Equipment Co., Ltd.(code 652268)
Brief instruction:
Location: No. 83, Dantu New City Section, Speech Highway, Dantu District, Zhenjiang, Jiangsu, China
registered capital:55 million yuan
production capacity:60000 tons/year 
Standard:
GB, ASTM, DIN, JIS, AISI, BS, SGS, BV
Dimensions: standard / customized  
Length : from 9.144m to 60.96m ( / customized )

Material: Steel
Steel Grade:  Q355B/Q460C or Equivalent
Application temporary bridge, platform, gantry frame, headframe ,the construction of the tower, float bridge and so on
Transport Package: Packing in Containers or Bulk
Advantage:Proven Robotic Welding,good welding quality and precise size
 


Workshop
Durable Long Truss Bridge for Heavy Load Applications


Welding Machine
Durable Long Truss Bridge for Heavy Load Applications


Certificates
Durable Long Truss Bridge for Heavy Load Applications
Durable Long Truss Bridge for Heavy Load Applications


Warehousing and shipping
Durable Long Truss Bridge for Heavy Load Applications


Packing and Transporting
Durable Long Truss Bridge for Heavy Load Applications Durable Long Truss Bridge for Heavy Load Applications


FAQ

01.Which countries do you export to?

     Our company's products have been exported to dozens of countries and regions. Including:, Malaysia, PhilippinesNepal,Canada, Russia, Mozambique, Cambodia, Laos, Vietnam, Myanmar., Papua New Guinea, Solomon lslands,Kenya, Tanzania,Zambia, Congo,Tajikistan, Georgia, etc.


02.Are you a factory or a trade company ?
     
We are an industry and trade company.With a strong background of a registered capital of up to 55 million yuan,the company has a production capacity of over 60000 tons per year. In the East China region, we have successfullypositioned ourselves as a professional manufacturing giant for large Bailey pieces and prefabricated highwaysteel bridges.The company has its own import and export rights, with 20 years of export business experience.


03.Do you accept custom processing?
    
  Yes, our company has an efficient and flexible technical team, we can process custom-made a variety ofnon-standard Bailey bridge, steel bridge, steel structure.


04.Can your company meet American standards?
         Yes, our products not only meet the AASHT0 American standard, but also meet the British BS5400, AustraliaAS5100 and other international standards.


05.Which airport is the nearest to your company?
Can l visit your company anytime?
     
The nearest airport is Shanghai Pudong lnternational Airport. You can visit our company anytime, our companywill issue an invitation letter and arrange to pick you up according to your needs. Your transportation andaccommodation during your visit to our company will be arranged by our company.  


06.Could you send me some hard copies of your catalogues?
        Sure. Please send us your address and contact information and we will send it to you by international express assoon as possible. 


07.Can we be your agent or distributor?
     
Our company is recruiting powerful partners all over the world for common development and win-win . Lookforward to long-term cooperation with you!



08.How soon can l receive your reply after l send you my inquiry?
       We will give professional and technical feedback within 6 hours after receiving your inquiry . After communicatethe technical parameters,we will provide quotation and preliminary design within 24 hours.


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Jiangsu Zhonghai Bridge Equipment Co., Ltd. (code 652268) is located in the Dantu High tech Park of Zhenjiang City, an ancient city in Jiangnan with profound cultural deposits. It enjoys unique transportation and logistics advantages in terms of geographical layout.

QUICK LINKS

PRODUCT CATEGORY

CONTACT US

 Add: No. 83, Dantu New City Section, Speech Highway, Dantu District, Zhenjiang, Jiangsu, China 
 Phone: +86-13655282755 
 Phone: +86-17368088115
 Tel: +86-0511-84522866 
 Email: zhwm@zjql.com
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