Using Condition Trends to Illustrate the Effectiveness of Past Investments / New Mexico DOT
In 2004, the New Mexico DOT realized that a significant percentage of state-maintained bridges were classified as structurally deficient. To address this issue, the agency targeted increased investments in bridge preservation. Going forward, the agency funded rehabilitation activities for bridges in poor condition and added preventive maintenance activities for bridges in good or fair condition to slow the rate of deterioration on these bridges. As shown in the figure below, the program has been very effective in improving bridge conditions. Adding a line to the graph showing the targeted conditions would help convey the impact that the increased preservation expenditures have had on achieving performance objectives.
Trend Showing the Decrease in Structurally Deficient Bridge Deck Area Resulting from Targeted Investments
Source: New Mexico DOT Transportation Asset Management Plan. 2018.
Read more in the chapter: 6.3.2 Using Trend Data to Make Program Adjustments