| TxDOT Information |
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| Pipe Selection |
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| Corrosion Protection Measures |
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| Bridge Standards |
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| Material Requirements |
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| Hydraulic Design Manual |
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Additional Design Information
- Bridge vs. culvert
Choose structure type based on: construction/maintenance cost, risk of failure, risk of property damage, traffic safety, environmental and aesthetics, and construction expedience
- Selection of culvert
Choose type of culvert based on roadway profile, channel characteristics, flood damage evaluation, construction/maintenance cost, and service life estimates
- Commonly used culvert shapes
Circular, pipe-arch, elliptical, box, modified box, arch
- Selection of material
Choose type of material based on required structure strength, required hydraulic efficiency, installation, availability of material, durability, and cost
- Inlets and end treatments
Give consideration to projecting culvert barrel, cast-in-place concrete headwalls, pre-cast end sections, mitered culvert ends
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Standard Specifications for Construction and Maintenance of Highways, Streets, and Bridges
- Item 460 – Corrugated Metal Pipe
- Item 462 – Concrete Box Culverts and Drains
- Item 464 – Reinforced Concrete Pipe
- Item 481 – Pipes for Drains
- Item 556 – Pipe Underdrains
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| Material Producer List for Reinforced Concrete Pipe and Machine-Made Precast Box Culvert Fabrication Plants |
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Note: Links provided below are to industry organizations. Individual companies and product links are not provided, nor will be in the future.
| Service Life of Culverts |
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NCHRP 474: Service Life of Culverts – Studies corrosion of common types of pipes and their causation and prevention
- Most common culverts
Concrete pipes, corrugated galvanized steel, high-density polyethylene (HDPE), galvanized structural plates, polyvinyl chloride (PVC)
- Factors that influence corrosion in metal and concrete pipes
pH, chloride, resistivity, sulfates, abrasion enhances corrosion rate
- How to stop corrosion
Thicker walls, better materials, coatings, liners
- Service life predictions
Case studies, internal research results, default estimated service life values (holistically, categorized by local environment conditions)
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| Reinforced Concrete Pipes |
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| American Concrete Pipe Association |
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| American Concrete Pipe Association Fill-Height Tables |
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Concrete Pipe Design Manual
- Provides design data and specifications
- Provides concrete facts
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Precast Concrete Pipe Life Cycle and Durability
- Reviews the significance of various physical and chemical factors, which determine the durability, design and performance of concrete pipe
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| Corrugated Metal Pipe (Steel) |
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National Corrugated Steel Pipe Association (NCSPA)
- CSP LRFD HOC Calculator
- Corrugated Steel Pipe Design Manual
- Applications of corrugated steel products
- Design considerations
- Rehabilitation
- Maintenance
- Durability guidelines
- Service Life Section Guide and Calculator
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| Durability Analysis of Aluminized Type 2 Corrugated Metal Pipe |
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| Thermoplastic Pipe |
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| Thermoplastic Pipe Types and Use |
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| Thermoplastic Pipe Specification |
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| PVC PIPE Association |
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| Plastic Pipe Institute |
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