National Cooperative Highway Research Program
NCHRP Project 20-5

Synthesis of Highway Practice 303
Assesment and Rehabilitation of Existing Culverts

TRB's National Cooerative Highway Research Program (NCHRP) Synthesis 303: Assessment and Rehabilitation of Existing Culverts summarizes the state of the practice of pipe assessment, the selection of appropriate repair or rehabilitation methods, and the management aspects of a pipe program.  This topic is published at https://www.trb.org/news/blurb_detail.asp?id=978