The following outlines TxDOT policy and requirements for risk-based inspection intervals outlined in 23 Code of Federal Regulations (CFR) 650.311 using Method 1 inspection interval determination for changing the interval of NSTM inspections. The level of inspection for NSTM inspections with decreased intervals will be the same as that required for those scheduled on a 24-month interval.

Bridges meeting the criteria below require reduced inspection interval of 6 or 12 months:

An inspection interval of 6 or 12 months is assigned based on engineering judgement considering the severity or recent activity of the deficiency. An active crack or identification of a new crack may be considered recent activity. The basis of either a 6-month or a 12- month interval must be clearly documented in the inspection report.