OUTDOOR
How to Estimate a Driveway Culvert
Contractor method for estimating a driveway culvert by diameter, length, excavation, bed and headwalls.
A driveway culvert moves water under the drive. The cost is the pipe by diameter and length, plus excavation, bed, headwalls and labor.
THE SHORT ANSWER
How do you estimate a driveway culvert?
Price the pipe by length and material, then add excavation, bed, headwalls and labor. An 18-inch steel pipe 30 ft long with excavation, bed and labor totals about $1,558.
Choose the diameter and length
The pipe diameter and run length set the pipe cost. Bigger and longer costs more.
- Diameter
- Length
- Material
- Headwalls
Price the pipe
Steel, concrete and HDPE differ in price. The material factor scales the pipe cost.
Add excavation, bed and headwalls
Digging and leveling, a gravel or sand bed, and headwalls at each end are fixed lines.
Add labor and total
Installation hours at the crew rate complete the job. Use the Driveway Culvert Cost Calculator, and confirm permits and engineering before installation.