This manual is intended for those early in their career in radway and bridge maintenance and will assist in understanding the various processes, methods, and materials that are applied to maintain bridge and highway systems effectively. The 2007 edition is based on information gleaned from recent highway transportation literature on maintenance and from NCHRP SP20-07, Task 170, and includes a new chapter on Systems Operation and Management. Supercedes the 1999 edition of this title.