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Section 2. RATING SYSTEM
3.2.1 RATING GUIDE. The condition rating system is based on 100
points as discussed in Chapter 1. A rating of 100 indicates perfect condition,
and a rating of 20 and below indicates a failure situation. Intermediate ratings
means various levels of maintenance are required. Following are illustrations
(Figs. 3-2 - 3-6) that show ratings to be assigned for various conditions. These
will provide a guide in assigning an overall rating on the inspection format.
The rating derived from the inspection format, page 3-6, can be determined
according to the following rules:
(1) For each truss, a rating of 0 to 100 is ascribed to each distress condition.
(2) The lowest rating for any distress condition becomes the overall rating
of the truss.
(3) Where two adjacent trusses have overall ratings of 40, the ratings of
both shall be changed to 20.
3-5








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