Temporary Steel Bridge / Modular Steel Bridge ISO9001 3m 3.048m Panel Length

Temporary Steel Bridge/modular Steel Bridge

The frequency of bridge inspections depends on various factors, including the bridge's condition, type, environment, and traffic load. Here are the general guidelines based on the latest regulations and standards:

1. **Routine Inspections**
- **Standard Interval**: Each bridge must be inspected at regular intervals not exceeding 24 months. 
- **Reduced Intervals**: For bridges with serious or worse condition ratings (coded 3 or less) for deck, superstructure, substructure, or culvert components, or those with serious scour conditions, inspections must be conducted at intervals not exceeding 12 months.
- **Extended Intervals**: Bridges in satisfactory or better condition (coded 6 or greater) for all components, with stable foundations and no significant deficiencies, may be inspected at intervals not exceeding 48 months.

2. **Underwater Inspections**
- **Standard Interval**: Underwater inspections must be conducted at intervals not exceeding 60 months.
- **Reduced Intervals**: For bridges with underwater components in serious or worse condition (coded 3 or less), or those with significant scour or channel protection issues, inspections must be conducted at intervals not exceeding 24 months.

3. **Special Inspections**
- **Fracture-Critical Members**: Bridges with fracture-critical members (steel members in tension that are not load path redundant) must undergo detailed inspections at intervals not exceeding 24 months.
- **Damage Inspections**: Unscheduled inspections must be conducted immediately following significant events such as floods, earthquakes, fires, or traffic collisions.

4. **Complex Bridge Inspections**
- Bridges with complex features (e.g., cable suspension, moving parts) should be inspected on the same frequency as routine inspections (typically every 24 months).

5. **Scour-Critical Structures**
- Scour-critical structures should be monitored during and after major flood events. If significant scour or settlement is observed, an in-depth inspection must be conducted immediately.

Conclusion
Regular and timely inspections are crucial for maintaining bridge safety and identifying potential issues early. The specific inspection frequency should be determined based on the bridge's condition, type, and environmental factors, following the guidelines outlined in the relevant regulations.

Specifications:

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​Advantage

Possessing the features of simple structure,
convenient transport, speedy erection
easy disassembling,
heavy loading capacity,
great stability and long fatigue life
being capable of an alternative span, loading capacity