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Culvert Design — The Resource for Design Professionals
The Resource for Design Professionals
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Types of Culverts
When you're in the planning stage of a culvert project, you need to investigate all of the options. But between CSP, concrete, PVC, and all the different shapes available, how can you know what type ...
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What is the Modified Rational Method?
How and when to use the modified rational method. Differences between the methods, hydrographs, runoff coefficients, and time of concentration.
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Standard Sizes of Precast Concrete Box Culverts
According to ASTM C1433 and C1433M, the standard dimensions of precast concrete box culverts are as listed in the table below. Keep in mind you can stand them up or lay them down flat, and you can put...
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How to Calculate Runoff using the Rational Method
How to get a result you can be confident in. Calculation of drainage area, time of concentration, runoff coefficient, and rainfall intensity.
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Standard Pipe Arch Sizes
Are there standard sizes of pipe arch, and if so, what are they? A pipe arch is a culvert with a flattened (but not completely flat) bottom. The culvert has three radii, a large one on the bottom, a ...