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!