MO-111.1 Inspection of Wood Beams and Trusses  

This Maintenance and Operations (MO) Manual for Facility Condition Evaluation Standards prescribes the procedures for identifying and evaluating the deficiencies in timber trusses and laminated wood arches. This manual first defines the types of deterioration and lists the underlying causes of these deficiencies.

A rating system is developed, based on the urgency of action required at the level of the public works engineering staff. Inspection equipment and procedures are then explained. There are separate chapters on Condition Evaluation Standards for timber trusses and laminated wood arches. The various condition ratings are explained and many are illustrated. An inspection format is suggested for each type of structure.