A big diameter corrugated metal culvert pipe is a large-span drainage structure assembled from corrugated steel structural plates (SSP). Instead of transporting a fully formed large pipe, curved steel plates are shipped to the construction site and assembled on-site using high-strength bolts.
This modular design eliminates transportation limitations and makes large-diameter installations possible even in remote or overseas locations.
When spans exceed 3 meters, structural plate systems become the most practical and economical corrugated steel option. With thicker steel plates (through 1 gage) and deeper corrugations, these pipes provide enhanced structural stiffness and load-bearing performance.

Filling Height (Back fill)
| Limited Filling Height | ||||||||
| Diameter (m) | The Thickness(mm)and correspondent Limited Filling height(m) | |||||||
| 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | |
| 2 | 24.76 | 33.06 | 41.48 | 49.78 | 58.08 | 66.38 | 74.67 | 82.97 |
| 2.5 | 19.79 | 26.54 | 33.18 | 39.82 | 46.46 | 53.10 | 59.74 | 66.38 |
| 3 | 16.47 | 22.12 | 27.65 | 33.18 | 38.71 | 44.25 | 49.78 | 55.31 |
| 3.5 | 14.09 | 18.96 | 23.70 | 28.44 | 33.18 | 37.92 | 42.67 | 47.41 |
| 4 | 12.32 | 16.58 | 20.73 | 24.88 | 29.03 | 33.18 | 37.33 | 41.48 |
| 4.5 | 10.93 | 14.74 | 18.43 | 22.12 | 25.80 | 29.49 | 33.18 | 36.87 |
| 5 | 9.83 | 13.26 | 16.58 | 19.90 | 23.22 | 26.54 | 29.86 | 33.18 |
| 5.5 | 8.92 | 11.94 | 15.08 | 18.09 | 21.11 | 24.13 | 27.15 | 30.16 |
| 6 | 8.17 | 11.05 | 13.82 | 16.58 | 19.35 | 22.12 | 24.88 | 27.65 |
| 2 | 23.64 | 31.52 | 39.40 | 47.28 | 55.17 | 63.05 | 70.93 | 78.82 |
| 2.5 | 18.91 | 25.21 | 31.52 | 37.82 | 44.13 | 50.44 | 56.74 | 63.05 |
| 3 | 15.75 | 21.01 | 26.26 | 31.52 | 36.77 | 42.03 | 47.28 | 52.54 |
| 3.5 | 13.50 | 18.00 | 22.51 | 27.01 | 31.52 | 36.02 | 40.53 | 45.03 |
| 4 | 11.81 | 15.75 | 19.69 | 23.64 | 27.58 | 31.52 | 35.46 | 39.40 |
| 4.5 | 10.50 | 14.00 | 17.50 | 21.01 | 24.51 | 28.01 | 31.52 | 35.02 |
| 5 | 9.45 | 12.60 | 15.75 | 18.91 | 22.06 | 25.21 | 28.37 | 31.52 |
| 5.5 | 8.59 | 11.45 | 14.32 | 17.19 | 20.05 | 22.92 | 25.79 | 28.65 |
| 6 | 7.87 | 10.50 | 13.13 | 15.75 | 18.38 | 21.01 | 23.64 | 26.26 |
Key Features of Big Diameter Corrugated Metal Culvert Pipe
1. Large Diameter and Flexible Span
Suitable for spans greater than 3 meters
Customizable diameters and profiles
Ideal for high water flow capacity requirements
The big diameter corrugated metal culvert pipe can be engineered to meet specific hydraulic and structural demands.
2. High-Strength Raw Materials
Carbon steel grades: Q235B and Q345B
Equivalent to S235JR or S355JR standards
Excellent mechanical strength and durability
These materials ensure that the structure withstands heavy loads and harsh environmental conditions.
3. Advanced Surface Protection
Hot-dip galvanized steel plates (≥ 610 g/m², up to 1200 g/m²)
Bitumen coating applied during assembly
This dual-layer protection significantly enhances corrosion resistance and extends service life, even in aggressive soil or water environments.
4. Modular Design for Easy Transportation
Unlike conventional large concrete pipes, the big diameter corrugated metal culvert pipe is delivered in curved plates. This allows:
Lower shipping costs
Easier handling and storage
Access to remote construction sites
Fast on-site assembly

Our raw material of the corrugated steel culvert pipe

Our semi-finished corrugated steel culvert
Applications of Big Diameter Corrugated Metal Culvert Pipe
The versatility of the big diameter corrugated metal culvert pipe makes it suitable for a wide range of infrastructure projects:
Highway and railway culverts
Storm water and drainage systems
Storm sewers
Small and medium-span bridges
Plate liners for rehabilitation projects
Irrigation and water diversion systems
Its structural strength and adaptability make it a viable alternative to concrete bridges or box culverts in many situations.
Advantages Over Traditional Concrete Culverts
Faster Installation
Modular assembly significantly reduces construction time compared to cast-in-place concrete systems.
Cost-Effective Solution
Reduced transportation expenses
Lower labor costs
Shorter project timelines
Structural Flexibility
The corrugated design distributes loads efficiently, allowing the structure to adapt to slight ground settlement without cracking.
Long Service Life
With high-quality galvanization and optional bitumen coating, the big diameter corrugated metal culvert pipe offers excellent corrosion resistance and long-term durability.

The corrugated steel culvert pipe in stock
Global Supply and Logistics Capability
Qingdao Climber has served clients in Mongolia, India, Malaysia, Ethiopia, Kenya, Sudan, South Sudan, Australia, Papua New Guinea, Bolivia, and many other countries.
Our logistics advantages include:
Modular packaging suitable for overseas shipping
Delivery to any port in the customer’s country
Door-to-door delivery options in selected regions
With over 10 years of experience in exporting corrugated steel culverts, we understand international standards and project requirements.
Custom Engineering and Professional Service
Every big diameter corrugated metal culvert pipe project requires precise design calculations and customized manufacturing. Our professional team provides:
Technical consultation
Customized diameter and profile design
Fast quotation within 24 hours
Full-process service from inquiry to shipment
On-time production and delivery
Customer satisfaction is always our top priority.
Why Choose Qingdao Climber for Big Diameter Corrugated Metal Culvert Pipe?
Professional corrugated steel manufacturer
1500 tons monthly production capacity
High-quality raw materials and galvanization standards
Competitive pricing for global markets
Strong export experience and reliable logistics
We are committed to providing durable, economical, and engineered solutions for infrastructure development worldwide.
Conclusion
A big diameter corrugated metal culvert pipe is an efficient, durable, and cost-effective solution for modern drainage and bridge applications. Its modular structural plate design, high-strength steel materials, and advanced corrosion protection make it suitable for demanding environments and large-span requirements.
If you are looking for a reliable supplier of big diameter corrugated metal culvert pipe for your next infrastructure project, Qingdao Regions Trading Co., Ltd (Qingdao Climber) is ready to provide professional support and customized solutions.
Contact us today to discuss your project requirements and receive a detailed quotation within 24 hours.
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