Determine the Steps for routine inspection?

A routine inspection should normally include:

- A Level I inspection on 100% of the underwater portion of the structure to determine obvious problems

- A Level II inspection on 20% of underwater units selected as determined by the Level I inspection

- A Level III inspection may need to be performed to gain additional data so that structural condition is evaluated with certainty.

- Sounding to be made in a grid pattern about each pier and up stream and down stream of a bridge to detect areas of scour. Local scour to be determined with probes in the vicinity of piers and abutments.