What Is Its Condition?
The condition of each component and each element comprising it should be detailed in the overall inspection report. The condition should be descriptive and explanatory.
For Network Level comparison, however, we need an index that can be applied to each structure in an objective fashion to allow us to compare apples to apples as we try to decide where we will spend our management dollars.
Again, your Bridge Management system should give you choices. The BCI, since it is an adopted standard by many municipalities, should be included. It has many short-comings however and should not typically be relied upon for prioritization.
The NASV should also be calculated. It is a much more meaningful statistic for economic comparison so long as risk is accounted for separately.