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Pipe Data SheetPipe Data Sheet
Presented by David Joe Polly PE, PLS, WRESenior Standards EngineerRoadway Engineering Unit
503-986-3738
FHWA Audit dated September 2008FHWA Audit dated September 2008
• Finding #1– ODOT is following Pipe and Culvert Selection
Procedures that meet the final rule for SAFETEA_LU Section 5514.
• Finding #2– Design life for all culverts can be increased to 75
years to conform to longer lasting pipe specifications.
Chapter 5Chapter 5
• Recommendation from the audit…
Add more culvert types to the Hydraulic Manual, so field changes can be minimized.
How do I fill out the Pipe Data How do I fill out the Pipe Data Sheet?Sheet?
Ignore pH and Resistivity…Ignore pH and Resistivity…
What does a culvert failure look What does a culvert failure look like?like?
Base thickness of pipes -
0.060 Thickness for Aluminum
0.064 Thickness for Steel
Need – Design Service Life
– Service Life based on pH and Resistivity values
- Increase thickness or coat
Corrugation size comes from the fill height tables RD380, RD382, and RD384
It’s as easy as pie!It’s as easy as pie!